The fist wastewater treatment plant and water filtration in New York was established in 1945. Wastewater treatment plants have benefited New York by keeping its water clean, and improving its water quality. Before wastewater treatment plants people use to throw out their waste on to the streets or into the closes water source, polluting their community, and water. Eventually, people started to get sick form the human wasted carried disease, that were carried thought pollutions of the air. Wastewater treatment plants were necessary to keep the streets and water clean; in addition to protect the heath of the people. The process in which wastewater treatment plants use to filtrate the water interest me because they are simple steps that one can even conduct in their own home.
The fist step that wastewater treatment plants conduct is aeration. Aeration is the process of putting air into the water to get rid of odor and contaminates. One can conduct this process in their own home by moving water form one container to the next. This would make air bubbles in the water. The second that wastewater treatment plants conduct is coagulation. Coagulation is the process in witch bacteria is added to kill bad bacteria and chemicals. One can conduct this process in their own home by adding chemicals that would clean their water, such as Clorox. The third process in wastewater treatment plants is sedimentation. Sedimentation evolves adding chemicals that sink sediments to the bottom and the top water in taken to be clean further. One can conduct this process in their own home by adding lame and dam to their water. The final process in wastewater treatment plants is filtration in which clarion is added to that the sediments that are left would stay in the bottom and stayed their. Conducting this process at home is not possible.In the long run, one can conduct about the same procedures wastewater treatment plants conduct to clean water in their own home. Although, the water may not come out as clean in one’s home.
Wastewater treatment plants are important to keep New York water clean for everyone to drink and reuse. If New York didn’t have Wastewater treatment plants than New York water would be unhealthy to drink or even reuse because it would have water carrying diseases and it’s unsanitary. Other places should consider having waster water treatment plants to improve their water quality.
This week in science class I learned about wastewater treatment plants, before people use to throw out their waste on to the streets or into the closes water source, polluting their community, and water. Eventually, people started to get sick form the human wasted carried disease that was carried thought pollutions of the air. If New York didn’t have Wastewater treatment plants than New York water would be unhealthy to drink because it would have water carrying diseases and it’s unsanitary. In class we worked on an experiment to see how clear our water can get by going through so many process. First we had 3 different cup, two of them were with wholes while one of them wasn’t, we use these cup to try and clear out the water make it clear enough for people could drink. We use 2 different type of chemicals and we stir the water for two minutes each time we added something new. We had to let the water run through the wholes so it can get clean and eliminate the odors. We also work as a group each read an article and found out if certain things were improving, most had less which was better and other had more which was also better depending on what it was.
During this week in Environmental science I learned a lot and one thing I learned about was waste water treatment plan. The first Waste water treatment plant in NYC was created in 1945. The waste water treatment plant is a benefit because it allows NYC water to clean and be drinkable. Although the waste water treatment plant is a big benefit things were as good before the waste water treatment plant was created in fact people were throwing their waste all over the streets. This caused lots of pollution and when it rain these wastes would get washed off the streets and it would make its way into our drinking water, and because of this people were getting sick with many type of diseases. Also in class this week we got into groups of four to do an experiment. Basically our jobs was to clean the dirty water that was given to us. The water samples was Untreated water, aerated water, addition of alum, after flocculation,first filtration, charcoal filtration.If the experiment was done right then your water should have clearer after each sample.
The First step that waste water treatment plant goes through is aeration. This process basically basically puts air into the water to eliminate odor and contaminates. The second step that waste water treatment goes through is coagulation. During this process bacteria is added to kill other bacteria and the dirty things in the water. The third process that waste water treatment plant goes through is sedimentation. This is when chemicals is added so that our water can be even more clean. The final step that waste water treatment plant goes through is filtration. This process allows the water to be even more clearer. This interesting because people can learn from this and they could stop polluting their area because our water can polluted which would then cause people to get sick. This is important because now I think that people should start recycling more.
This changed my perspective because I didn't know any of this information before we had this conversation in class. Diseases are no joke so people should do the right thing and stop polluting their area because pollution causes diseases. The waste water treatment plant is important because it is the reason that our water is clean and drinkable. I agree with Maggie that other places should consider having a waste water treatment plant because it keep our water clean.
During this week’s Environmental science class, we discussed the process of a typical New York City Water Pollution Control Plant. The first process is the Preliminary treatment which is when the water flows underground in sewers from businesses and homes. In the Preliminary treatment waste water passes influent that removers large pieces of materials. The rest of the waste water goes into the primary treatment in the sedimentation tanks for one through two hours. Then, when the water is done, it goes into secondary treatment into aeration tanks. In the Aeration tanks air is pumped and mixes the waste water and sludge. There are good beneficial micro-organisms that eat the remaining organic materials. This process occurs for 3 to 6 hours. The next process is the Disinfection process which is a 15-20 minutes in chlorine-contact to disinfect and kill harmful organisms left in the water. The follow up process is the sludge process that takes up to 24 hours to collect sludge. The sludge is further treated to make it safer for the environment and digesters heated to at least 95 degrees Fahrenheit for between 15-20 days. Then treated waste water goes in Effluents. Examples of effluents are the Hudson River, East River, Jamaica Bay and Long Island Sound. The Process of a typical New York City Water Pollution Control Plant seems very long but successful. Compared to the first five Waste water treatment plant were created in 1945-1965, New York City’s Sewage system has had a major improvement. New York Sewage system receives improvement till this day. In 2009, retention tanks were created to collect and hold sewage and rain water before it goes into the river untreated. I have always wonder how the sewage system worked because I knew that New York’s water was reused through Living Environment in 9th grade, but I never received a clear understanding of how. My understanding become clear but it became clearer when we did the in class lab. We use plastic cups, stirring sticks, fine gravel, coarse sand, fine sand, and activated charcoal in order to clean “sewage” water that Mr. Fox made. After completing to lab with my group, out water was clear! I believe the experiment would have been better if it contained the sludge process and if chlorine was added. However, the process was effective. I find that the Sewage system is very important to New York and other places because it keeps people healthy, and it conserves fresh water because on 3% of the earth’s water is fresh water. Before Sewage systems, Waste use to be thrown onto the streets which lead to polluting the environment and bodies of fresh water. After large amounts of people started to get sick form the human wasted which carried disease in the air, Sewage systems were created to better these conditions. Other places that don’t have a sewage system, I would really recommend that they do, it would really make a difference.
This week we learned about wastewater treatment plant and water filtration. Many people use to throw out their garbage into the streets or rivers. Wastewater were use to keep the water clean. They used 4 steps to wastewater treatment plants to filtrate the water in it, which are Sedimentation, Coagulation, Aeration and Filtration. In class we did an experiment to see how our water could get clean by using the chemicals. Mr. Fox had water that contained many particles that contaminated the water and wasn’t safe to drink. Then we had to go through a process to make the water safe to drink. We used three cups, two in which we made holes on them. In one of them we placed 3 different particles that created the filter and the other one that it’s used to make the streets. It was amazing the way the water came out clear with all those chemicals that where put into after all the things that were inside the water. We even worked in groups reading different articles to see how important it is and the way it has or not improved during the year. I learned that we don’t have to only use the filtered of our homes we could use this process as well even though I would be too picky about it just wondering if it’s safe to drink. Having the wastewater treatment have been an amazing things because that’s what makes the New York City water clean.
This week in our environmental science class we learned the process of how our water that we use and drink gets clean. The process of this is called New York City water pollution control plant. It first passes though the prelminary treatment, which removes big pieces of big trash. The second step is the primary treatment where it eliminates all the light materials that is remaining. The third step is the Activated sludge process where it uses bacteria and air to remove as many pollutant as possible, the air and bacteria eats all the organic material that is left. The Fourth step is Disinfection this step uses chemicals that kill many organism that can be harmful and affect our health. Last but not least is the Sludge treatment , this one passes through thickening ,digestion and dewatering this process reduces sludge and produces gas that can be use for electricity and other important things . This process use chemicals that reduces many trash from water.
In addition this water treatment process also indicator of water quality. Some of the locations that this process occurs is in the Jamaica bay, the Hudson river, Long island and much more. Its water quality are called Fecal Coliform ,Dissolved Oxygen, Chlorophyll "a", and Secchi Transparency. We learned what is it and what does it does. This also include some of the limited ranges , meaning that each indicator has a possible risk range , acceptable range, and unacceptable. It the range of the possible risk passes it range the indicator can produce some harm to the water quality.
Overall, i belive all of this processes is very important because all this information teaches us the long and sacrificed process it passes through to keep and maintain out water clean and safe to use and drink. We learned from this to not litter our rivers , and not waste our own water that we have to use for later on, because people who work at this treatment plant process work hard and sacrifice themselves to keep our water clean as possible and accurate for our health. Therefore, we shall not contribute to damages to our water. Overall, i believe the process of the NYC treatment plant is a very smart and brilliant technology people created. I never thought it was something so complicated and long , but at the same time is very intellectual ,sketchy and interesting.
This week in Environmental Science class, we learned how wastewater is treated and the benefits of the wastewater treatments on our environment. To me this was a very interesting topic to talk about. Not only did we learn something new, but we also understand how important it is to treat our wastewater. One question we discussed was where do you think sewage water goes? My response to this was that it is treated and then released to near by rivers such as the Hudson River. I had no idea that treating wastewater was such a difficult process. The wastewater treatment process has 4 different steps that have to be taken to make sure the water is safe to flow to the cities waterways.
The first step of wastewater treatment is called Preliminary treatment. In this process wastewater is passed through screens, which remove large pieces of trash such as plastic bottles, and newspapers. The next step is called Primary treatment. Here wastewater enters primary settling/ sedimentation tanks, which allows heavy solids to settle at the bottom of the tank and the lighter materials to float. The solids that are left are then taken to another facility that further processes these materials, and turn them into fertilizers. The process that follows is the Secondary treatment. In this step air is pumped into aeration tanks that mixes the wastewater and sludge which stimulates the growth of oxygen- using bacteria and other organisms that eat most of the remaining organic materials. The final step is Disinfection. In this process the wastewater spends a minimum of 15-20 minutes in chlorine-contact tanks mixing with sodium hypochlorite (the same chemical that is found in household bleach). This treated water/effluent is then released into local waterways. The wastewater treatment process might seem easy since it has only 4 steps that have to be taken, but in reality it takes a lot of work and time so that the environment and people can be safe.
The way I thought about sewage water was changed when I learned how well processed wastewater is before it is released to our cities waterways. I still wonder if the Hudson River is safe enough to be bathed. Learning about sewage has also changed the way I thought about life in the way that, I never knew how much things are done to make the environment safer for every individual. Therefore, we should appreciate our local waterways, and keep in mind how much time/ work is put into cleaning that water.
This week in Environmental science class we learned the Importance of treating sewage water.The four steps to treat waste water, in treatment plants are. One filtrate the water to get rid of the Sediments,Coagulation, Aeration and Filtration. The four steps are essentially important because they clear the water and allow the addition of chemicals to become easier to eliminate the dangerous levels of bacteria. The fact that water has bacteria is not always a threat because we ourselves have bacteria that helps our intestines.The other benefit that the treatment plants get from these for steps is that they are able to obtain natural gas from all the left over waste. This then allows for them to run their machinery and be able to save energy.In class we performed an experiment in how our water could get clean by using the chemicals that's used similarly in treatment plants.Mr. Fox had water that contained many garbage material that contaminated the water and wasn’t safe to drink. Then from thee on we where able to follow the steps of getting rid of the sediments and adding the disinfecting chemicals that surprisingly gradually showed positive results as the water began to clear up and the smell changed. It clear that these treatment plants are simply doing nature's job correctly just in a faster time because all the water waste that's accumulated. If we allow for nature to take its course then it will take ions in my opinion to recycle for re-use. It's also good to be aware that the DEP is doing a good job in monitoring the water as they have a lot of methods to prevent certain fluids to get in the water system such as fats, oil and grease (FOG) found in food ingredients such as meat, cooking oil, shortening, butter, margarine, baked goods, sauces and dairy products.This is a good method of control in my opinion and to learn more you can check the link http://www.nyc.gov/html/dep/html/wastewater/grease.shtml
In Environmental Science class this week we learned how our cities wastewater is treated and the benefits of having our water waste treated on our environment. This week due to the interest I had in this topic I worked harder than ever before I was really into this weeks topic. This week we answered a couple of questions.Specifically one question was where do you think sewage water goes? As part of a do now my response to this was that the water is treated and then dumped into the Hudson River. Although it is not the best alternative it is better than what we would normally do.In order to treat water the wastewater treatment process has to go through 4 steps.
This week we covered all the steps.The first step is the Preliminary treatment. This process consist of the wastewater being passed through screens,that remove the bigger pieces of trash as they filter the trash. The next step is called Primary treatment. During this step the wastewater is placed in sedimentation tanks that lets solids of heavier weight settle on the bottom and the light ones float on the top.The ones that remain are taken and made into fertilizers The next step is the Secondary treatment. This step is when they pump air into aeration tanks that mixes the wastewater and sludge together this improves the creation of oxygen while later on bacteria and organisms are used to eat the rest of the material left in the wastewater. The final step is the disinfection step. In this step the wastewater stays in a tank for 15-20 minutes.These tanks are called chlorine-contact tanks.They consist of chemicals found in normal bleach.This treated effluent with better quality is then released in our cities waterways. While it is only 4 steps this process is very time consuming we spend a lot of time in each step even though there are only 4 we complete these 4 steps with great time and care. My opinion about what waste water was and how it was treated has definitely been altered after this week. After I found out how it was processed before and the alternative that we have made I am actually liking the idea and support it. I mean I understand this isn't the best or safest way to make this process work but as of now and what we have done before this is a great substitution from the past. Learning about the steps and how complicated they can be I have learned to grow interest in the way our waterways are used I am actually interested in going more in depth and pursing maybe a little side study to get into the process of the water ways which have really interested me.
This week during Environmental Science we learned about indicator of water quality. The indicator of water quality are fecal coliform, dissolved oxygen, chlorophyll 'a' and secchi transparency. Fecal coliform is a bacteria that indicates the pressure of fecal matter in water. Some of these indicators can make you sick. Less than 30 cells in 100 milliliters is an acceptable amount. Dissolved oxygen is the measure of oxygen in water. More than 5 milligrams per liter is acceptable. Chlorophyll 'a' is a green pigment found in plants that allows the plant to get energy from light. Too much of it leads to eutrophication; and that increases the algae in the water and decreases the marine life in water. Less than 15 micrograms per liter is acceptable. The secchi transparency is used to measure the clarity of the water. More than 5 feet is acceptable. In groups we read about different NY Harbor's and determined how the water system was.
This relates to my community and me because overall the harbor of N.Y. is not healthy. The indicators have improved but they are not in the acceptable standards they should be in. For example, in Jamaica Bay the only improvement there has been is the dissolved oxygen. Overall the chlorophyll 'a' and secchi transparency has been moderately improving while the fecal coliform has been the worst.
This week in Environmental Science we learned about the waste water treatment plant and how our water is treated before it is drained out into the bodies of water around us. We read articles and saw diagrams in which the process were shown. When waste water first arrives at the treatment plant it is separated from huge pieces of trash in order for the equipment inside the waste water treatment plant to not get damaged. After this the real process starts. The waste goes through aeration which is when the waste water is exposed to large quantities of air. The water is put inside a very big tank and air is put in the tank through hose under the tanks, this lets the contaminant to escape the water. Also, the odor and the taste that might be in the waste water is also removed during this process. The next process is called coagulation and flocculation. The water is moved to another tank that begins the process of coagulation during this process garbage clumps together creating huge particles called floc. Chemical added to help the process of coagulation are aluminum sulfate, or alum. Then the flocs attract each other more and more so that it is easier to remove. Sedimentation happens by adding water to the water in order for the large particles that are clumped together can settle to the bottom and then can be scraped off. The next process if filtration. This contains charcoal or other anti-synthetic materials, it may even use living organisms like algae and/or bacteria which help remove contaminants. Finally the last process is called disinfection. This is done to remove any last contaminants that may be in the water. Chlorine is added in order to remove things such as disease-causing, organisms such as bacteria or microscopic parasites. Other processes are pumping ozone, exposing ultraviolet light.
The water treatment plan is the system that clean the water since 1942 these systems take the waste of the water. The preliminary treatment remove large pieces of trash including rags, sticks, newspaper, solf drink cans bottle, plastic cups and other similar items. The primary treatment removes heavier solids to settle to the bottom of the tank and the thing that is not that heavy in the top. The secondary treatment, they put air and seeds into the wastewater to break it down. Disinfection kills the germs and it disinfects the waste water. The sludge treatment, “thickening tanks allow the sludge to collect, settle, and separate from the water for up to 24 hours”. What I found interesting was that water in treatable so that we can actually reuse it. I also found interesting that the wastewater that goes to the river end up in a treatment plant. I learned how to treat the water my self. It changed the way I think about how I treat my water. How long is the treatment process? How much water does the water contain when is being treated?
This week in Environmental Science we learned about the wastewater treatment process. There are about five different steps to the wastewater treatment: Preliminary treatment, Primary treatment, Secondary treatment, Disinfection, and sludge treatment. Preliminary treatment are bars that remove big pieces of trash such as rags, sticks, newspaper, soft drink cans, bottles, etc. Primary treatment, this is the stage where the heavier solids end up at the bottom of the tank and the lighter things to float to the top which then gets cleaned. The solids, primary sludge are pumped which separate all the object or items. The secondary treatment which is also consider to be activated sludge process because different things are put into the mix in order to break down the wastewater. This also used to create oxygen by using bacteria which eat the things that are polluting the water. The Disinfection process kills any types of bacteria or organism that still remain in the water by using different types of chemicals. Finally, the Sludge treatment collects, settle and separates the sludge from the water. What I mostly found interesting was that all this steps have to happen just to clean the waste water which is created by all the trash and the bacteria that runoff carries to the streams, what worse is that runoff, rainwater, and wastewater gather up all together in one treatment plant. What I also found interesting was that when all three are combined sometimes it can overflow which then causes the water to go into the streams. My question is why is it that the sewers for rainwater, wastewater and runoff are all connected if there is a possibility that it can over the limit or the space that it can hold? This has changes my views on this because now I am able to see how long it takes to clean water so that it can be healthy to reuse so I am able to be more cautious of my trash.
This week I learned about the water treatment process. The wastewater goes through 5 major processes: preliminary treatment, primary treatment, secondary treatment, disinfection and sludge treatment. In the preliminary treatment the water passes through a series of spaced out bars. The bars remove the large pieces of trash; it is then transported to landfills. In the primary treatment the heavier objects settle to the bottom and the lighter objects float. The floatable trash is removed. Afterwards, the sludge goes through the secondary process. In this process the water goes through bacteria and other organisms that are in the sewage. This process breaks down the sludge and allows the heavier particles to settle to the bottom. The next process in disinfection, the waste water spends 15-20 minutes in chlorine mixed with sodium hypochlorite. This process disinfects and kills harmful organism. The final treatment is the sludge treatment. The sludge goes through three processes; thickening, digestion and dewatering. These three sludge treatment process further treatment to the sludge.
Learning about the waterwaste treatment process I realized that most of the pollutants are removed from the water before it is released to local waterways. This week, I have realized we are lucky that our waste water goes through these 5 processes because it cleans our water. These process shows the improvement in our water system because before our water was filthy due to the unsanitary conditions in our environment. However, new technology and new techniques have provided alternative ways to clean our water.
This week in environmental science we learned about waste water treatment plants and how they treat sewage water. There is a specific process that goes on inside the waste water treatment plant that the water goes through.
The first step the water goes through is called Preliminary treatment. The water here is called influent. This is where the waste water passes through screens that consist of large upright bars that removes the large piece of trash that is located in the water.This is important because this protects the main sewage and pumps other equipment. The second is Primary treatment Where the water passes through primary settling tanks. Resulting in heavy solids to settle at the bottom of the tank. This part of the process is important because of the same purpose as when it meets with the first bar screens, but for far more specific reasons, so the water then can be treated more effectively. The third part is where the water goes through secondary treatment. Through areation tanks. In here the water mixes with the sludge that stimulates the growth of bacteria. Then going through final settling tanks that is known to secondary sludge. In addition, this is helpful because this helps microorganisms that are polluting in the water that are polluting that water that will later settle in the treatment. Also this helps maintain the right mix of bacteria in the tanks and continues to the removal of as many pollutants as possible.
Then, The water then later goes through disinfection. The water here is called effluent known as "treated water." This protects the health of people who use local beaches to enjoy everyday activities. The last process that sewage water goes through is called sludge treatment. This is a separated process that goes on after all the water had been treated and is process into further treating. Thickening goes on in here where sludge collects and then it separates the water for 24 hours. Digestion then goes on which stimulates the growth of aerobic bacteria. turning bacteria into methane gas. The last one is dewatering. This reduces liquid volume of sludge about 90%. All of these steps are important because this all helps aid the sludge digestion making it all safer for the environment and it also helps the water get reprocessed.
I did not know what goes on after the water goes down the sewer down the streets of my neighborhood. Now that I know it changed my perspective on water. Little did I know that dirty water does get processed after using. Evn after that using some of it at the end really does not go to waste because it also then gets recycled for drinking water. If the city of New York never had waste water treatment plants to treat dirty water we would find ourselves in an infested mess.
Thinking of New York City water I always used to only think about the Hudson River, and ugly estuary with really stinky dirty water. But really there are many more water ways like the lower New York Bay- Ratrian Bay. In class we all got important detail form a specif NY harbor. The lower Newyork Bay- Ratian bay was mine. I was asighne to see 4 major indicator to determine if the water was in good quality. The fecal coliform, Dissolved Oxygen, Chlorphyll ‘a’ and secchi transparency. After we got all the information together to determine what was happening with the NYC water if conditions where improving or not. In my case the Fecal colifoem was improving according to the 2010 summary. They are improving because it has been the lowest 20 cells/ 100ml. The DO is improving as well .They are improving because in the year 2010 the Do was the largest as well, 7.6 mg/l. Chlorphyll ‘a’ and secchi transparency on the other hand have not been improving. Nothing is improving because it has been the highest since 2002. Over all NYC water is not doing good.
In Enviromental Science this week we learned about the way water is filtered and we actually filtered some water Mr. Fox brought in. The water was blue colored and in the end the water had to come out clear. The first step was to observe the water before the treatment. Then we added alum to the water a stirred it for 2 minutes then after that we added lime and stirred it for 2 more minutes. After that we observed the water and it turned from blue green to creamy green. Then in a cup we made different levels of sediments first sand then course sand and last gravel. This was used as our first filter we poured the water into this till the water came out clear (We held the cup with sediments over another cup because the water would be filtered again). Then we got a cup of charcoal that we poured the water into. The water came out sooo clear my group were surprised. After the activity we compared how similar our treatment of water was to the real water treatment plants.left in the w We learned the the omly difference was that they do not add anthing to their water. We added lime and alum they, add bacteria which eats anything that is left in the water. We also read articles i got the Upper East River. We had the see if the water was good quality and i learned that instead of the water improving it is getting worst the the fecal coliform in 2009 was 36 cell/100 mL and now in 2010 it was 43 cell/100 mL. This isnt good. This relates to my community because the body of water around New York City isnt in great quality, and this can affect us.
For this last week of the first trimester we wrapped up our water unit in Environmental Science. One of the things we talked about this week was how our water changed throughout the years until now. The main answer is wastewater treatment plants and water filtration in New York, which started in the 1900s. For the water to be treated it goes through several processes. Aeration (remove some of the contaminants in the water, and also removed odor and taste that cause compounds), coagulation (components "clump" together to form big large heavy particles, by adding bacteria), sedimentation (water is added to the vessel), filtration (sediments spills into a channel that runs to a filtration), disinfection (transferred the water to a large reservoir for distribution), and finally water quality standards (allowable level of contaminants set).
This is important because NYC water is one of the cleanest water in the world. NYC recycles its water, which is important because there is only 3% of fresh water. The other 97% is salt water. This is important to me because it shows that the water in New York where I live is safe to drink. Before taking Environmental Science class I thought tap water to be very dirty and unhealthy. This class has changed my perspective on tap water completely. Tap water is very safe because of treatment plants and water filtration. New York water is not affecting no ones health which is important because recently the mayor of New York has been thinking about whether he should allow hydrofracking of not. If hydrofracking is to be permitted in New York it could affect people’s health, because the drilling for natural gas could contaminate the water.
During this week we learned about the process wastewater treatment plants have to clean up the wastewater. There are five steps to the wastewater treatment process. The five steps are a preliminary treatment, primary treatment, secondary treatment, disinfection and sludge treatment. This process helps New York City's wastewater get cleaned up.
In class we were assigned the task to clean up sewage water that was given to us. We had to use the steps similar to the steps used by treatment centers. In fact we had to use filters. One made of fine gravel, coarse sand and fine sand, another one made of activated charcoal. In the end of the task we were able to clean up the sewage water. Now the sewage water was clear it also lost the blue coloring it had to begin with. It also smelled better and all the garbage it had was gone. Even though the steps taken were not exactly the same as the wastewater treatment centers, but by the end of the task we were able to see how the water treatment process is done.
It was interesting to see how the wastewater treatment process is done in New York City. This is important to know because it shows us how the wastewater is clean in our city. I wonder how the wastewater in New York City compares to other cities in the United States. I also wonder if other cities take the similar process to clean up the wastewater as New York City.
I thought I had an idea about what happens to water once its been disposed. In reality, I didn't know much. What I did know was that water was then treated to be consumed again, but I didnt know how complex the process really was. I didnt have the slightest idea that water went through a number of processes, some that I would have never thought would be possible or nessesary. This week in Environmental Science i was introduced to these processes. At first we were shown a chart that reflected the flow of the water treatment. My first impression was: How safe are these procedures? and how well do they clean the contamination in the water? I managed to see for myself when we preformed the five major processes to treat water. Results were drastic! I would have never believed that a blue liquid substance would end up looking like tap water with 5 steps. The steps didnt exactly have all the methods used in a real treatment. I realized that if the water sample we experimented on turned to clean looking water without the complete process, imagine how pure it would be if we preformed all the steps. In our lab we followed the following steps; aeration, cogulation, flocculation, sedimentation, and filtration. Each process made the water cleaner if preformed correctly. In the preformed activity, all the steps provided where nessesary elements to make the water close to consumption. Aeration is preformed because it manages to increase the levels in oxygen in doing so it looses oder and taste compounds. Coagulation was preformed because it clumps components in the water. Flocculation attracts particles to grow larger. Sedimentation is preformed to seperate the heavy materials the settle on the bottom of the container. Filtration helps make the water clear and oderless. I began to reflect on our water conditions today from before. Before conditions were extremely unsanitary; water was left untreated and there wasn't an area to dispose wate. As a result many people died. Soon after advancement in infastructure made a series of changes which made the water treatment successful today. I was greatful that such a progress had been made. Knowing this made me less ignorant in terms of water. I never cared to think about water because its not like I've had any issues with the water I drink.
DELORYN QUEZADA What I have learned this week and had found very interesting, would be the treatment process of waste water. Before this waste water treatment started occurring, the outcomes of not having one, seemed horrid; sewage was dumped into our waters without proper treatment ultimately hindering our water quality. Factors in which it hindered would include the amount of dissolved oxygen, chlorophyll'a, Fecal Cloriform, the clearness of our water, and biotic things.
In class, we experimented with a sample of sewage water. This experiment made me realize and point out the extra steps that a real waste water treatment plant does to improve the quality of daily use of water. In the lab we first went through the step of aeration. In aeration we constantly began to move the small body of water through two cups until about 2 minutes. Next was sedimentation. In this step what happened was the the lightest part of the liquid ended up on top while the densest settled to the bottom. Finally we preformed the process of coagulation/flocculation what we did here was add alumni in the waste water, and the odor started fading away at this point. Then we performed sedimentation, in this process we made our very own filer with particles such as sand and charcoal to remove the more dense material from the water, odor, and color. Through the small holes we made in the bottom of the container holding this small amount of water going through the filter, the liquid came out clearer, orderless, and transparent.
This week in Class we learned about the wastewater treatment plant, how to clean up the waste from our community, we learned about the fast step to the wastewater treatment, which are the preliminary treatment, primary treatment, secondary treatment, disinfection and sludge treatment, Also we did watch these videos about the wastewater treatment and how the process goes and how it affect people in our community and society. The wastewater treatment have these security cameras that could check whats going on between the pipes, because if the wastewater comes through one pipe and another one comes through the other pipe there could be problem, and when it raining the wastewater it overflows and causes floods.
What I noticed from this lab was that we did not go through all the steps specifically from those of the waste water treatment plant, and made me recognize them even more. For example, in the aeration process in reference to the treatment plant instead of moving the water sample back and forth, they place it in these large tanks with air and bacteria. The bacteria helps remove much of the contamination, because these bacterias feed on this components we want to remove. In the coagulation/flocculation process in the plant they add many more chemicals than one. They had aluminum, sulfate, and other agents. In sedimentation, the difference is that on a power plant when necessary the debris at the top is cleaned out and disposed of, while in the lab we did not remove anything. Finally in the last step of filtration, this filtration of a plant seems much efficient, and stronger due to the fact they use various amounts of gravel, and and some charcoal and bacteria.
In conclusion, this lab made me realize how relatively strong is our waste water treatment plant compared to the simple one we did as a lab. DELORYNQUEZADA
This week in Environmental Science our class learned about the process of wastewater treatment. New York City as well as Albany have sawyer system that are combined, this means that wastewater and raw sewage go into the same place. Unlike the new cities who have separate systems. This topic is very interesting I had always wondered how the waste water was treated and finally learned it this week. In order to treat the waste there are various steps such as the primary treatment where the waste is passed through screen in which the purpose is to remove large trash. The heavier items are brought to the bottom and the lighter items float to the top. These items are left there to turn into fertilizer used for crops. The solids are taken to secondary treatment where air is pumped inside to mix wastewater and sludge. Bacteria are used to eat the materials after this is disinfection where the water is put into chlorine for about 15-20 minutes. Learning about wastewater and how it is treated changed what I thought because I didn’t really think much about it I thought it was an easier process. I now know that it takes a lot to treat the water. I still wonder though if the water that is treated is truly as safe as they say or if it can be more treated. I think more people should be inform about this topic.
This week in Environmental Science I learned about the indicator of water quality. The indicator of quality includes Fecal Cloriform, Chlorophyll a, Dissolved Oxygen, and Secchi Transparency. Fecal Cloriform is a type of bacteria that indicates the present of fecal matter in waterways. A Fecal Cloriform that is less than 33 cells in 100 millimeter is acceptable, 33-61 is a possible risk, and greater than 61 cells is unacceptable. Chlorophyll a is a green pigment that allows plants to get energy from light. However, when they are too much in the water, it can leads to eutrophication. A range that is less than 15 micrograms per liter is acceptable, 15-20 micrograms is a possible risk, and greater than 20 micrograms is unacceptable. Dissolved Oxygen is a measure of how much oxygen is in the water. The number of oxygen dissolved in the water column are critical for the respiration of the animals of most aquatic life forms, including fish and invertebrates. A range of more than 5 milligram per liter is acceptable, 3-5 milligram per liter is a possible risk, and less than 3 is unacceptable. Finally, Secchi transparency which is used to measure water clarity. A range greater than 5 ft is acceptable, 3-5 ft is a possible risk, and less than 3 ft is unacceptable.
This is relates to my community base on the the Lower New York Bay Raritan Bay, Fecal Coliform was a major problem to our water in 1985, it went over the limit, but since then it started to become more acceptable. However, the amount of dissolved oxygen have not change, data shows it has continue to increase over time.
This relates to my life and my family in ways. First of all, water is important in the environment, and if there is problem with our water, we might most likely to get sick. Indicator of water quality is important because it is the four major indicators of environmental change. Therefore, not only we need to keep the environment clean, but also to be stable.
This week during Environmental Science we learned alot about the process of the wateswater treatment and the indicators inside thewater quality. During the second day of the week, everyone in the class had the opportunity to clean up or purify sewage water. The sedimentation process took some time to find out if the heavier debris settled to the bottom It was a very good experience and I did not believe that wastewater was treated in this way.
There are at least 5 steps into clearing the sewage water. The first step is the preliminary treatment and this step is able toremove the larger pieces of trash in order to protect the main sewage. The second step known as the primary treatment is able to slow the flow of water to allow all of the heavier debris reach the bottom of the tank while the lighter objects manage to flow to the top. The third step being known as the secondary treatment is able to use bacteria to terminate all of the sludge being known as heavy debris that settles to the bottom. The fourth step which is the disinfection can have treated water be released into the local waterways. The fifth and final step, in my point of view being an extra step allows the sludge to go into another waterway to thicken, become heated to at least 95 degrees Fahrenheit for 15-20 days and dewater the liquid volume of sludge by about 90%.
Also there are 4 indicator's to use and determine the water quality. Fecal Coliform is a bacteria used to indicate the fegal matter in waterways. Chlorophyll 'a' is a green pigment that allows plants to get energy from the light. But if there is too much H2O then this leads to eutrophication. Dissolved Oxygen measures how much O2 is in the H2O. Secchi Transparency is used to measure the clariness of H2O. It's important to know about these facts since back in early times New York's sewage system was beyond severe that eventually the first wastewater treatment plant known as the North River Treatment plant was made in 1985.
This week in science class we learned how waste water gets treated. This was a topic that I was interested in learning about because it was how the water that people use on a daily basis was purified and dumped into the river even though the water isn’t completely cleansed. But this is the best alternative to what would have to be done and if this process would not happen we would have to dump the water contaminated into the river causing more pollution and more problems for our environment. The process of cleaning after has four main steps the first one is primary treatment which is when the water is passed through screens to separate the big chunks waste from the rest of the water. The next step is primary treatment were the water is allowed to sit in sedimentation tanks were the water separates the reaming chunks of filth to the bottom of the tank and it lets the clearer water go to the top. The next step in the water cleansing process is called the secondary treatment were the water is put in aeration tanks were air is pumped into the tank to get rid of some of the toxic smell that the garbage creates. The final step is the disinfection process were the water is put into another tank in order to put bleach into the water to disinfect the water from any chemicals that it could have encountered in its way to get to the water treatment plant. Then eventually when that is done the water is released in to the rivers. Even though the water is released in to the river with bleach and any other cleaning chemical that they might used its still better than the alternative which is just letting the water into the river without being cleansed in any way. Know that live learned this I feel a little more confident that people are at least doing something about the water that gets used daily by the millions of people in our city. I’m very happy I learned this because in the past I use to think that the water was just dumped into the river with no cleaning or supervision what so ever. Even though the way that the water is treated in the city is not perfect and not all is taken out of the water it’s still better than anything that wouldn’t be done even though there might be a problem in the long run with dumping the water with cleaning chemicals but for now we can only solve the immediate problems that were faced with such as the disposal of water in our city.
This week in Environmental Science we focused on how waste water is treated in New York. The waste water treatment process of New York consist of 5 steps which is what makes our water clean and of a good quality.
The first step is called preliminary treatment. During this step waste water is passes by a big filter that collects all of the big pieces of garbage. This step is important because the big pieces of water in the waste water can damage the equipment. The second step of the waste water treatment is called primary treatment in which the waste water is put in settling tanks, also called sedimentation tanks, for one to two hours. The heavier solids settle to the bottom of the tank and the lighter materials float. At the end of the process, the lighter materials and substances, such as grease, rise and is skimmed from the tank's surface. The third step is secondary treatment. The water goes through aeration tanks. In here the water mixes with the sludge which makes bacteria grow. The next step is disinfection, in which the water is put in tanks of chlorine mixed with sodium hypochlorite for 15-20 minutes. After this the water is sent out to the nearest body of water. The last step is the sludge treatment. Sludge is basically all the dirt and waste that was in the water. The sludge goes through three processes which are thickening, digestion and dewatering. They convert the treated sludge into methane gas which helps power the treatment plant.
Wastewater treatment plants are important because without them our water would be unsanitary and of poor quality. In addition to that our rivers and lakes would be dirty also. New York City's water is clean because of the processes it goes through. Before I thought that water was just filtered through a screen and mixed with chlorine but now I know that the process of cleaning waste water is more complicated.
This week, we did a lab in class. Prior to the lab, we learned about how waste water is treated in waste water treatment plants. For the lab, our goal was to filter our own untreated water. Throughout the lab, we had to take notes on how the water changed in each step. At first, my group and I noted that the water was blue and it was dark at the bottom. Our first step that affected the water was aerating it by pouring it back and fourth with another cup. My group noticed that after aerating it our untreated water, it became a lighter color. After taking note on that, we moved onto our next step that affected the water which was adding alum to it. We had to stir for 2-3 minutes. After, we noticed that the untreated water remained the same. I remember my group and I feeling sad because nothing exciting happened. After pulling ourselves together, we then added lime into our untreated water and we saw that the water turned green, murky and it started to clump together. After that we poked holes under a cup and created a filter bed with fine gravel, coarse sand and fine sand. We had to run our water through this and observe. We saw that the water was clear but you were still able to see some green in it. Also, it was no longer murky. We then poked holes in another cup and added charcoal in it. We ran the water through the charcoal and instantly we our water became clear!!! We were so excited that we ran it through the charcoal again it became even clearer! My group and I were happy that we succeeded in our lab and we were glad that now, we can filter our own water (just kidding).
This week in Environmental Science I learned a lot about how it feels to be a scientist. I performed a lab with my group where our goal was to clean sewer water through a wastewater treatment plant. I really enjoyed doing so because my dream is to be able to work in a laboratory one day.
The first thing we had to do was punch a few holes at the bottom of two plastic cups. We then shook the untreated water for about 2 minutes and filled a cup half full. Afterwards we observed that the untreated water smelled horrible, contain all kind of dirty things like cigarette buds, leaves, etc, and was dark blue. We added calcium oxide which I noticed did not changed the water’s appearance all that much. Furthermore, we added flocculant which made the sludge clump towards the middle of the cup. Later, we poured 2cm of fine sand into one of the plastic cups that contained holes, followed by 2cm or course sand, and lastly 2cm of fine gravel for which we used to filter the water. I saw that this process slightly decreased the amount of particles in the water. Finally, we finished our lab by adding charcoal to the other plastic cup with holes where we filtered the water once more in order to remove the unpleasant odor.
I like science a lot and performing labs is the best way to engage hands on into what we are really trying to find out. This trimester we have been trying to find out, is our tap water safe? To end the trimester with a lab was entertaining because I experienced somewhat the process in which my water undergoes before it gets to me and after I use it.
Aeration, Coagulation\Flocculation, Sedimentation, and Filtration all are terms that demonstrate steps in the Wastewater Treatment Lab. This week we assimilated Wastewater Treatment plant process in an experiment. We simplified the following actual steps, which were the prelminary treatment, preliminary treatment, secondary treatment\ activated sludge process, disinfection, and sludge treatment. The prelminary treatment is when the influent is separated by taking the big pieces of garbage from the waste and then taking it to the next step. In the following step the primary treatment allows the lighter things to float up and then removed more trash instantly, this process is done because it is harder to detect the small dirty garbage in the water. Then the water goes to the secondary treatment and the activated sludge process where solids that are still in the water float down, while the liquid and light organism still in the water stay on the top this makes it easier to remove the things in the bottom. After this the remaining water is divided, then it comes to the final step with is disinfection. Here the water is purified with chemicals like chlorine which kills all the type of bacteria causing diseases. Then the rest of the remaining waste is called Sludge which is taken in to its own different procedures in the sludge treatment ultimately, taking out the bacteria, removing order and making energy out of it!
This preliminary information was very helpful during the simulation experiment. Where we took a cup of Mr. Fox’s homemade waste water and through the different but similar process of Aeration, Coagulation\Flocculation, Sedimentation, and Filtration we attempted to create clean water. Although still not drink able! This experiment thought me that a lot; here I learned that sludge could be turn into a green source of energy. That was very interesting because it’s a form of using natural resources, and natural gas without hydrofracking, and instead with the waste we use daily. This got me to think of the giant landfills that we still have all over the country, and if we that we can find a way to reuse the those items or find a way to turn them in to useful energy.
This week in Environmental Science I was introduced to the water treatment process. The first step in the water treatment processes begins with the Preliminary treatment. The water here is called influent. This is where the waste water passes through screens that consist of large upright bars that remove the large piece of trash that is located in the water. This step is important because it’ll prevent any sewage from building up in the pipes, pumps and other equipment. The second step is Primary treatment, in this step the water passes through primary settling tanks. These settling tanks hold influent water where heavy solids can settle to the bottom of the tank. This part of the process is important because of the same purpose as when it meets with the first bar screens, so the water then can be treated more effectively. The third step consists of aeration tanks. In here the water mixes with air to remove odor and harmful contaminants from the influent. After the water has gone through the aeration tanks the water goes into its final setting where heavier solids settle to the bottom of the tank as secondary sludge. After this process has finished, it moves into the disinfecting process which puts the effluent, treated water, into chlorine tanks for 15-20 minutes to kill harmful organisms. Next the effluent goes into Sludge treatment. The effluent is compacted to enable further processing followed by digestion. In this step the sludge stimulates the growth of oxygen less bacteria which consume organic material in sludge. Finally the digested sludge moves into dewatering where the volume of the sludge is reduced by 90%. This is important because it helps create methane gas that powers the plant.
During this week in Environmental Science class we learned about the waste water treatment process. The waste water treatment process has five steps. The five major steps is the preliminary treatment, the primary treatment, the secondary treatment, then disinfection and finally the sludge treatment. In the preliminary treatment basically large pieces of trash is removed from the sewage. After all of the trash is removed, the sewage goes through primary treatment in where it goes to primary settling tanks for about two hours. What this does is have heavier solids settle to the bottom of the tank and other lighter materials to float. Then this waste water goes to secondary treatment. Here, the waste water is put in to aeration tanks, which mixes the waste water and the sludge that stimulates the growth of oxygen using bacteria and other tiny organisms. What this step also does is remove bad odors from the sewage. After the sewage goes through this step, it then goes through disinfection. The treated sewage goes to chlorine contact tanks for about 20 minutes mixed with sodium hypochlorite. Lastly, the sludge that is left gets treated.
I never thought that the water I used eventually came back to me, because after this process is done, the treated waste water gets dumped into the river. I think that it is a good idea that we have waste water treatment plants because if it wasn’t because of these plants we wouldn’t have enough water to rely on. The step from the waste water treatment plant that I find the most interesting is the secondary treatment. In this step, microorganisms are used so that they consume most of the remaining organic materials that are polluting the water. In class, we tried to clean sewage with relevant steps to those of the waste water treatment plants but with slightly different steps. For instance, sedimentation is done at first in a waste water treatment plant and in class we left this step for last. Learning about the waste water treatment plants and the process was overall very interesting.
In this week of Environmental Science, I learned about the water treatment plant and where the treated water is disposed after it has been treated. It’s a process where they’re many steps too, in order so that our water can be fresh and clean as preferred. In class we did a experiment that kind of exemplified what the water treatment plant does. When we saw the results, it really impacted my life because I saw how clean the water got, and I got to relate it to the water treatment t plant and how clean their water should be. What we had to do was, make a couple of holes on the bottom of two cups. Then we shook the untreated water and filled a cup about halfway. We then added calcium oxide; most of us thought that it didn’t do much change in the water. We hen added one more chemical called flocculent which made all the dirty chunks unite. We then poured sand into the plastic cups that had the holes we made. Then water was filtered. When finishing this experiment, I figured how clean the water from the treatment plant should be. This changed the way I thought about the water treatment plant because I thought their water wasn’t treated carefully but now I see that it is. Now when I drink water I feel like its gone through all those steps shown in the water treatment plant sheet.
This week was an interesting week. We learned about why and how New York City started and created its many treatment plants. Before the first treatment plant was created in 1842, New Yorkers were all dumping their waste all into the river. The outcome of this was negative. People were spreading diseases every time they dump their waste. Everyday their were dead bodies waiting to be picked up all because New York did not have a sewage system to get rid of the waste. In 1842 New York's first waste water treatment plant was developed. Each treatment plant goes through 5 stages. stage1 is when the waste flows through screens which help remove the large garbage particles. Stage 2 is where the water enter primary settling tanks for 1-2 hours which allows the heavier solids to settle to the bottom of the tank. Stage 3 is when sludge from the plant treatment process is added to the waste water to break it down further. Stage 4 is when the waste water spends 15-20 minutes in chlorine contact tanks mixed with sodium hypochlorite. Stage 5 is where the leftover sludge is treated to help plants grow. I thought it was fun this week to learn about this because it was a mixture of history and science , and I love both subjects :)
This week we completed a lab on the treatment of sewage water. Each step we completed was similar to the steps in the Wastewater Treatment plant. First we aired the sewage water by pouring it back and forth with 2 cups. Then we added alum which made the water less cloudy and removed the odor. Then we added lime which clumped all particles together. We filtered the water through fine sand, course sand and gravel once and then we filtered it through coal 4 to 5 times. By the end the water changed from nasty smelling blue sewage water to odorless colorless water. Our water treatment and the wastewater treatment plant have many similar qualities. They both include some kind of filtration. The wastewater treatment has bar screens that act like a filter removing big clumps of trash from the sewer water. They also pump air into the water to air it similar to what we did. Some differences are that we did not add micro organisms to eat the pollution and we did not treat the sludge. Learning the wastewater treatment plant process and treating water myself makes me feel a little better about the water that goes down my drain and toilet. It also makes me feel better about our environment in general. I now know that not all the garbage from out sewer ends up in a landfill ruining our land and environment, they actually turn it into something that can help cultivate our crops. Also the water that ends up in sewers is not just wasted and left to accumulate, it is modified and treated.
In this week of class we learned about the process that our water is passed through in order to be ready for drinking.The first treatment is Preliminary treatment. Preliminary treatment is when the untreated water passes through bar screens ,these bar screens remove large pieces of trash.When the trash is removed its transported to land fills.the second step to wastewater cleaning is Primary treatment.In the primary treatment the water is left to settle for 1-2 hours until light objects float and heavy objects settle in the bottom.The third step to wastewater cleaning is called Secondary treatment, during this process the water is mixed with the sludge in Aeration Tanks , bacteria are added that feed on pollution to clean the wastewater.The last step to water cleansing is Disinfection,during the disinfection process water remains 15-20 minutes in chlorine and mixed with sodium hypochlorite to be disinfected. In class when I learned these steps that our tap,bath and cooking water go through I believed that our water is clean and safe to drink.The water goes thought all these steps before we drink it.I belive all these steps are enough to remove swage ,these step clean the water and remove any threats that may be in the water.All these steps have an influence on how clean our water is and how safe it is for us as consumers.The preliminary treatment is important because it removes garbage from our water,the removing of heavy objects in the untreated water prevents the main sewage from getting clogged. The primary treatment allows water to be further treated by letting it settle making sure to get those heavier objects in the bottom.Secondary treatment is like a double check to make sure to get out all the sewage and add bacteria to ensure that the sewage is removed from the water. The Disinfection process is my favorite step and the final step to water treatment .Disinfection is the finalization of the water cleansing it kills organisms living in the water and destroys any bacteria left in the water. I think that these steps are very important they provide water consumers with healthy water.How sewage is collected now is very different from how it was collected before 1945.many people were dying because of the way they got rid of waste.They use to deposit their waste in their rivers which they drink from , this made their drinking water unsafe. Many people died because of these unsafe waste depositing .Now were very modern as a country we have pipes and underground sewers we also have a great water filtration system with various steps to ensure our water is not only clean but also healthy.
This week in my opinion was one of the best week I had in environmental science. This week in science class did an experiment on how to clean the water by taking out the sewage and sediment that the water had. What we first did was that recorded if any sediment were in water or what color was the water and if you could see through it. Then we Aerated the water and air bubbles started to form that took away some of the chemicals that where in the water. Then all the sediments went to the bottom of the cup. Another thing was that we added alum that made the water turn clearer but we still couldn’t see through the water. Then flocculation started happening that me the water turn in layer of green water and sediments on the bottom.
Then we used two plastic cups and did smalls holes in bottom to start our filtration. Then we did our first filtration with fine sand on the bottom of the cup, coarse sand in the middle and fine gravel on the top. What happened after we put the sewage through the filtration was that the sediments and the sewage stayed in the filtration and the water started to get clean and did not smell too much. Then we did our second filtration with charcoal that made the water turn clear and more save to drink but we repeated this step multiple times in order for the water to turn clear.
In my opinion this was the best experiments that I had so far.
In this week of Environmental science I learned about the water treatment plant and where is disposed after it has been treated it also has steps to do that process. Each step we completed was a similar to the steps in the wastewater treatment plant. First we aired the sewage water by pouring it back and forth with 2 cups, then we added alum which it made the water less dirty and cloudy and removed the odor. Then we also added lime which clumped all particles together we filtered the water through gravel once and there we filtered it through coal 4 to 5 times. By the end the water smelling blue sewage water odor less coloress water. It went to clean and clear. Award treatment plant is similar to the wastewater treatment. We also had a good process to put award treatment to the wastewater treatment.
During this week of Environmental Science we learned about water treatment plants and water filtration. The two main questions that were asked was where does our water come from and where does it go when we are finished with it, and how do my actions impact the water of my community, family, and city?
There are five steps to the waste water treatment process. The preliminary treatment is the influent which waster water passes through screens that consist upright bars, spaced one to three inches apart. This process is important because the three bars remove large pieces which protects the main sewage pumps and other equipment. Then the primary treatment which all the heavier solids settle to the bottom of the tank and the lighter materials floats on top. This process is important because it has the same purpose as when it makes the first bar screens, but for far more specific reasons , so that the water can be treated more effectively. Then the secondary treatment is when aeration tanks is when air is added/pumped into the tank to increase the growth of oxygen and organisms. Which this helps bacteria, microorganisms that are polluting the water that will later settle in the treatment process. Then the activated sludge process which is the final settling that the sludge process contains microorganisms that help maintain balance. This helps maintain right mix of bacteria in tanks and contributes to the removal as many pollutants as possible. Last but not least the disinfection process which the effluent that is chlorine is added to disinfect and kill harmful organisms. It protects the health of people who use local beaches, and enjoy other activities on the water. Finally the sludge treatment which is the thickening it allows the sludge produced by primary and secondary treatment to settle and thicken. Which helps aid the sludge digestion process. Then digestion which stabilizes and thickens the sludge by converting much of the materials into water, carbon dioxide and methane gas. Which makes it safer and helpful for the environment. Then de-watering which reduces liquid volume of sludge about ninety percent. This finally helps water get reprocessed and sent back into the rivers.
This had changed the way I thought that the water treated, at first I thought it goes down threw pipes cleaned and sent back into the Hudson River, which I had never thought that out water was recycled and we are using right at the moment we are speaking. This helps me understand why this is happening and the reason for this is because we are trying to conserve the three percent of fresh water int the world.
This week in environmental science, our class learned lots about our water and the New York City Treatment System process. Preliminary treatment, primary treatment, secondary treatment, disinfection and sludge treatment are the 5 significant processes that our wastewater goes through. The preliminary treatment is when the wastewater passes through screens of upright bars, spaced one to three inches apart. These bars remove large pieces of trash and protects the main sewage pumps and other equipment and the garbage is then transported to landfills. The primary treatment consists of the wastewater entering primary settling tanks. This is where the water is slowed, allowing heavier solids to settle to the bottom of the tank and the lighter materials to float. After the primary treatment comes the secondary treatment, which is called the activated sludge process. In this process, air and “seed” sludge from the plant treatment process are added to the wastewater to break it down further. And last but not least, the disinfection and sludge treatment process. This is the part when the wastewater spends a 15-20 minutes in chlorine-contact tanks mixing with sodium hypochlorite.
Before learning about this in Environmental Studies, I had many of my own theories to how our water is treated after we are done utilizing it. But the real treatment process never occurred to me. Although it is a very complex process, it all makes sense to me now. I find it so funny, that I use water each and every single day and never does the thought cross my mind about where it is going or how it is being treated. It was a very educational week in Environmental Studies, indeed.
This week in Environmental Science we focused and learned the process of how waste water is treated in New York State. The waste water treatment has five steps on how to treat it. Preliminary treatment is the first step. In the preliminary treatment step the water passes by the bar screens that collects and removes big items, like bottled. If the bottles are not removed then the bottles can do damage to some of the equipments. That’s why this step is important. The next step is Primary treatment. In this step, the water passes by the first tanks so the heavy solid stuff can go down to the bottom of the tanks. This step is important because items like small pieces of plastics can get in the way, and so it can be more treated more efficiently. The third step is the secondary treatment. In this step the water goes through the process of aeration so that all the bacteria will be somewhat removed. In the final steps, the purpose is so the water can get rid of the pollution like microorganism. After learning about the process of how waste water gets treated, our class did a lab with some sewage water that Mr. Fox made. The process was way different than the waste water treatment plant. First we started with the process of aeration. We had two cups and put the untreated water in the cups and went back and forth. Then we added chemicals like alum and lime. Then we made some filters like different type of sands and the other with charcoal. When the untreated water went through the filters, the water became clear and pretty.
Wastewater treatment plants are the primary reason why we are waterborne disease free. Our wastewater flows daily down to our city’s sewer system. At the city’s wastewater treatment plants, wastewater undergoes five major processes; the preliminary treatment, primary treatment, secondary treatment, disinfection and the final sludge treatment. The primary and secondary treatment removes between 5% to 95% of pollution from the wastewater before the threatened wastewater is disinfected and discharged into local waterways.The first of the major process is the preliminary treatment. Influent, which is the incoming wastewater that flows into the plants to remove the trash through screens or bars, those bars remove large pieces of trash such as newspapers, bottles, and sticks. This part of the process is essential since it will eliminate the trash that will potentially damage the equipment. The second of the major process is the primary setting tanks also known as sedimentation tanks for about 2 hours in which water is slowed down, this leads to the heavier solids to settle at the tank’s bottom and the lighter materials to float. Towards the end of the process both the heavy and light materials are removed. The third part of the major process is the secondary treatment. Air is pumped into the aeration tanks, which mites the wastewater and sludge that stimulates the growth of bacteria that uses oxygen. The beneficial microorganisms consume that vast majority of the verandas pollutants. This is important because it allows the microorganisms to eliminate pollutants. The fourth of the major process is Disinfection in which the effluent, which is the treated wastewater, is put into chlorine-contact tanks mixed with Sodium hypochlorite, which is similar to the chemical found in bleach. This process is important due to the fact that it eliminates all bacteria in the effluent. The Fifth and final major process is the sludge treatment. Sludge treatment has 3 stages, which are thickening, Digestion, and dewatering. Thickening lets sludge sit for up to 24 hours, some water is sent back for more treatment at the aeration. Digestion is the process after thickening, in which the sludge is further treated to make it safer for the environment. The sludge is placed in oxygen fee tanks called Fahrenheit. Methane uses is often used as an energy source at wastewater treatment plants. The third step is dewatering. It is when the water separates from solids, those caused by centrifuge.
This is important and affects my life because I'm guaranteed to receive fresh and clean water, the fact that New York City waste water goes through all those different processes make it safe for its incredibly large population. Knowing that my water goes through selective and effective processes make me feel safe about using and drinking it.
During this week we learned how waste water gets treated in waste water treatment plants. This topic was interesting because it showed the water that people used daily and how it was purified and dumped into the river even though the water isn’t completely cleaned. This is an alternative to just dumping untreated water into the cities rivers. If the untreated water gets dumped into the river it would cause pollution and more problems for our environment and people’s health.
The process of cleaning the untreated water has four main steps. Firstly comes primary treatment which is when the water is passed through screens to separate garbage from the rest of the water. The next step in primary treatment happens when the water is allowed to sit in sediment tanks were the water separates the remaining chunks of dirt to the bottom of the tank and. The next step in the water cleaning process is called the secondary treatment were the water is put in aeration tanks. The air is pumped into the tank to get rid of some of the toxic smell and increase the reproduction of organisms that clean the water. The final step is the disinfecting process happens when the water is put into another tank in order to put chlorine into the water to disinfect the water of any remaining pollutants. When that is done the water is released in to the rivers. Even though the water is released in to the river with chlorine, it quickly disperses into the water.
This helps me understand things better and it makes me become more confident known that the city is doing something to clean up the rivers. This has been a good step up to the usual dumping of untreated water. This will reduce contamination on the rivers. By the time I have children the river can be fully restored and cleaned.
Throughout this week we have learned about the waste water treatment plants, the way its treated, and the steps it takes to treat these polluted waters.
In New York City there is a main sewer system in which drains waste water from different areas of the city whether it is from toilets, factories, and schools. When it rains, or snows the melting water finds its way through these sewer systems and causes many combined sewer overflows.
The waste water in these sewers reach a waste waster treatment plant in which the water is purified. In these treatment plants it takes around 7 hours to remove all the pollution from the water.
There are five major steps that these contaminated waters undergo in order for the waste water to be purified. The first step is the Preliminary treatment in which the waste water passes through screens that have upright bars that allow anything that is not liquid to be removed away from the drains. This helps protect the sewage pumps that take the waste water to the surface levels of the plant. The second step is the Primary treatment in which there are settling tanks that allows the heavier solids to settle in the bottom while the lighter solids float up to be removed from the top of the tanks. The third step is the Secondary treatment in which air pumps in large aeration tanks mix the waste water and sludge which helps consume most of the organic materials. The fourth step is the Disinfection process in which the waste water spends 15-20 minutes in chlorine-contact tanks mixed with sodium hypochlorite This helps protect the health conditions of the people using these waters. The fifth step is the Sludge treatment in which thickening tanks help separate the sludge. Then after thickening it goes through the digestion process to make the water safe for the environment. Finally, the sludge is dewatered and purified.
If there wasn't any sewer systems that allow access of the waste waters to enter these treatment plants then New York City would become more polluted and their would be an epidemic.
Before waste water treatment plants, New York City's water supply was of the lowest quality. The water was so polluted that captains would sail their ships into New York's harbor in order to kill off the barnacles attached to their ships. Not only was the water contaminated enough to kill barnacles, but sailors could smell New York three miles away from the shore. Citizens would deposit their wastes onto the open streets and nearby streams and rivers. Because of the increasing amounts of pollutants in the water, waterbourne diseases such as cholera eventually broke out. Thousands of people died from cholera, and so New York City came to the realization that something must be done in order to improve the quality of the water. One way to do that was through a systems called "The Wastewater Treatment Plant".
In order to understand the process that sewage water undergoes to become drinkable water, a lab was conducted throughout this week. In this lab, the objective was to improve the quality of the sewage water. In order to clean the sewage, we did a process called airing, which was basically transferring the water back and forth in two cups. After, alum and lime were added in order to remove its odor and color. Then, the water was filtered through coarse sand, fine sand, and gravel. Finally, the water was filtered through coal. It was amazing to see how the water changed from something teal and nasty to transparent and clean. In the wastewater treatment plant, sewage goes through the same process. It is skimmed, then it is aired, disinfected, and finally filtered. The leftover sludge undergoes a different process.
Visiting the wastewater treatment plant and doing the lab helped me understand how my water undergoes its cycle. I've always wondered where my tap water came from and where it goes when it drains. I understand and consider myself lucky that I have access to clean drinkable water and that New York City has takes water quality seriously.
In class I learned about the waste water treatment plant and how it keeps our water clean. New York City is one of the cities that have a Combined Sewer System which is storm water mixed in with wastewater and sends them to the same wastewater treatment plant. In the middle of the 19th century, there wasn't a sewer system and the residents used to dispose wastes in their backyards or on the streets which caused epidemic outbreaks, and waterborne diseases such as yellow fever and cholera. As the population increased. the demand for fresh water grew. The first sewage treatment plan was constructed in the late 19th century. In 1904 the Metropolitan Sewage was created the commision started to study and analyze New York City's water. The waste water treatment plant was one solution of keeping our water clean and safe to consume.
There are five steps to the wastewater treatment process, the first step is preliminary treatment, which passes through spaced out bars. The bars help remove large pieces of trash and are transported to landfills. The second step is the primary settling tanks/sedimentation tanks, which allows heavy solids settle down to the bottom, and lighter solids to float. The lighter solids are then removed. The third step is called secondary treatment which are also aeration tanks it breaks organic matter down, bacteria consume the organic materials that pollute the water. The fourth step is called Disinfection, it's important because the treated wastewater kills harmful organisms, the water stays in for 15-20 mins with chlorine (found in common household beach). The fifth step is the sludge treatment and this process allows the sludge collect, settle and seperate from water up to 24 hours. it also passes through thickening ,digestion and dewatering this process reduces sludge and produces gas that can be use for electricity and other important things . This process use chemicals that reduces many trash from water.With the wasterwater treatment plants they handle and process 1.3 billion gallons of sewage per day.This waste water treatment is a benefit to the city since many countries do not have clean water, or a system similar to the waste water treatment plant and die from dieases each day.
This week IN environmental science class I have learned about water treatment plants. Water treatment plants are Plants that treat wastewater. Wastewater that is being treated comes from toilets, baths, sinks, and outside sewage system.
in class my environmental teacher Mr. Fox created sewage water and assigned us to treat it clean .to do that there are five interesting steps that are very similar to the strategies used at the treatment plants. To reach the goal of treating that sewage water we needed gravel, coarse sand, and fine sand, and charcoal. The steps to cleaning this infested water particles to stick together, second to put the small rock particles with some sand in order trap some of the pollutants found in sewage water. After repeating this process once more we added a liquid to the water that would make it clearer. The last step to this assignment/ investigation was to pore the charcoal rock into the cup of water and let it sit for a while when we take out the charcoal the waters nasty aroma disappeared slightly we repeated this step once more and the sewage smell to it was disappearing. The results my group received was outstanding.
This is real interesting the results after each and every step to treating this sewage water. It makes me wonder exactly how the water treatments treat their sewage water, not just one but many different treatment centers just to in rich my knowledge of many deferent ways water can be cleaned. Clean water really matters because a human’s body is made out of more than 50% of water. Water is the Number one healthy anything your body will need to keep its self up and going. Te water in New York which is the state I live in is not bad at all its levels reach state standards according to what I learned in class. This lesson and Lab Helped me understand that something is being done to help the environment because before I had no idea that the water entering the sewage system was being treated I believe it went straight to the river.
The fist wastewater treatment plant and water filtration in New York was established in 1945. Wastewater treatment plants have benefited New York by keeping its water clean, and improving its water quality. Before wastewater treatment plants people use to throw out their waste on to the streets or into the closes water source, polluting their community, and water. Eventually, people started to get sick form the human wasted carried disease, that were carried thought pollutions of the air. Wastewater treatment plants were necessary to keep the streets and water clean; in addition to protect the heath of the people. The process in which wastewater treatment plants use to filtrate the water interest me because they are simple steps that one can even conduct in their own home.
ReplyDeleteThe fist step that wastewater treatment plants conduct is aeration. Aeration is the process of putting air into the water to get rid of odor and contaminates. One can conduct this process in their own home by moving water form one container to the next. This would make air bubbles in the water. The second that wastewater treatment plants conduct is coagulation. Coagulation is the process in witch bacteria is added to kill bad bacteria and chemicals. One can conduct this process in their own home by adding chemicals that would clean their water, such as Clorox. The third process in wastewater treatment plants is sedimentation. Sedimentation evolves adding chemicals that sink sediments to the bottom and the top water in taken to be clean further. One can conduct this process in their own home by adding lame and dam to their water. The final process in wastewater treatment plants is filtration in which clarion is added to that the sediments that are left would stay in the bottom and stayed their. Conducting this process at home is not possible.In the long run, one can conduct about the same procedures wastewater treatment plants conduct to clean water in their own home. Although, the water may not come out as clean in one’s home.
Wastewater treatment plants are important to keep New York water clean for everyone to drink and reuse. If New York didn’t have Wastewater treatment plants than New York water would be unhealthy to drink or even reuse because it would have water carrying diseases and it’s unsanitary. Other places should consider having waster water treatment plants to improve their water quality.
This week in science class I learned about wastewater treatment plants, before people use to throw out their waste on to the streets or into the closes water source, polluting their community, and water. Eventually, people started to get sick form the human wasted carried disease that was carried thought pollutions of the air. If New York didn’t have Wastewater treatment plants than New York water would be unhealthy to drink because it would have water carrying diseases and it’s unsanitary. In class we worked on an experiment to see how clear our water can get by going through so many process. First we had 3 different cup, two of them were with wholes while one of them wasn’t, we use these cup to try and clear out the water make it clear enough for people could drink. We use 2 different type of chemicals and we stir the water for two minutes each time we added something new. We had to let the water run through the wholes so it can get clean and eliminate the odors. We also work as a group each read an article and found out if certain things were improving, most had less which was better and other had more which was also better depending on what it was.
ReplyDeleteDuring this week in Environmental science I learned a lot and one thing I learned about was waste water treatment plan. The first Waste water treatment plant in NYC was created in 1945. The waste water treatment plant is a benefit because it allows NYC water to clean and be drinkable. Although the waste water treatment plant is a big benefit things were as good before the waste water treatment plant was created in fact people were throwing their waste all over the streets. This caused lots of pollution and when it rain these wastes would get washed off the streets and it would make its way into our drinking water, and because of this people were getting sick with many type of diseases. Also in class this week we got into groups of four to do an experiment. Basically our jobs was to clean the dirty water that was given to us. The water samples was Untreated water, aerated water, addition of alum, after flocculation,first filtration, charcoal filtration.If the experiment was done right then your water should have clearer after each sample.
ReplyDeleteThe First step that waste water treatment plant goes through is aeration. This process basically basically puts air into the water to eliminate odor and contaminates. The second step that waste water treatment goes through is coagulation. During this process bacteria is added to kill other bacteria and the dirty things in the water. The third process that waste water treatment plant goes through is sedimentation. This is when chemicals is added so that our water can be even more clean. The final step that waste water treatment plant goes through is filtration. This process allows the water to be even more clearer. This interesting because people can learn from this and they could stop polluting their area because our water can polluted which would then cause people to get sick. This is important because now I think that people should start recycling more.
This changed my perspective because I didn't know any of this information before we had this conversation in class. Diseases are no joke so people should do the right thing and stop polluting their area because pollution causes diseases. The waste water treatment plant is important because it is the reason that our water is clean and drinkable. I agree with Maggie that other places should consider having a waste water treatment plant because it keep our water clean.
During this week’s Environmental science class, we discussed the process of a typical New York City Water Pollution Control Plant. The first process is the Preliminary treatment which is when the water flows underground in sewers from businesses and homes. In the Preliminary treatment waste water passes influent that removers large pieces of materials. The rest of the waste water goes into the primary treatment in the sedimentation tanks for one through two hours. Then, when the water is done, it goes into secondary treatment into aeration tanks. In the Aeration tanks air is pumped and mixes the waste water and sludge. There are good beneficial micro-organisms that eat the remaining organic materials. This process occurs for 3 to 6 hours. The next process is the Disinfection process which is a 15-20 minutes in chlorine-contact to disinfect and kill harmful organisms left in the water. The follow up process is the sludge process that takes up to 24 hours to collect sludge. The sludge is further treated to make it safer for the environment and digesters heated to at least 95 degrees Fahrenheit for between 15-20 days. Then treated waste water goes in Effluents. Examples of effluents are the Hudson River, East River, Jamaica Bay and Long Island Sound.
ReplyDeleteThe Process of a typical New York City Water Pollution Control Plant seems very long but successful. Compared to the first five Waste water treatment plant were created in 1945-1965, New York City’s Sewage system has had a major improvement. New York Sewage system receives improvement till this day. In 2009, retention tanks were created to collect and hold sewage and rain water before it goes into the river untreated. I have always wonder how the sewage system worked because I knew that New York’s water was reused through Living Environment in 9th grade, but I never received a clear understanding of how. My understanding become clear but it became clearer when we did the in class lab. We use plastic cups, stirring sticks, fine gravel, coarse sand, fine sand, and activated charcoal in order to clean “sewage” water that Mr. Fox made. After completing to lab with my group, out water was clear! I believe the experiment would have been better if it contained the sludge process and if chlorine was added. However, the process was effective.
I find that the Sewage system is very important to New York and other places because it keeps people healthy, and it conserves fresh water because on 3% of the earth’s water is fresh water. Before Sewage systems, Waste use to be thrown onto the streets which lead to polluting the environment and bodies of fresh water. After large amounts of people started to get sick form the human wasted which carried disease in the air, Sewage systems were created to better these conditions. Other places that don’t have a sewage system, I would really recommend that they do, it would really make a difference.
Krystal Acevedo
This week we learned about wastewater treatment plant and water filtration. Many people use to throw out their garbage into the streets or rivers. Wastewater were use to keep the water clean. They used 4 steps to wastewater treatment plants to filtrate the water in it, which are Sedimentation, Coagulation, Aeration and Filtration. In class we did an experiment to see how our water could get clean by using the chemicals. Mr. Fox had water that contained many particles that contaminated the water and wasn’t safe to drink. Then we had to go through a process to make the water safe to drink. We used three cups, two in which we made holes on them. In one of them we placed 3 different particles that created the filter and the other one that it’s used to make the streets. It was amazing the way the water came out clear with all those chemicals that where put into after all the things that were inside the water. We even worked in groups reading different articles to see how important it is and the way it has or not improved during the year. I learned that we don’t have to only use the filtered of our homes we could use this process as well even though I would be too picky about it just wondering if it’s safe to drink. Having the wastewater treatment have been an amazing things because that’s what makes the New York City water clean.
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ReplyDeleteThis week in our environmental science class we learned the process of how our water that we use and drink gets clean. The process of this is called New York City water pollution control plant. It first passes though the prelminary treatment, which removes big pieces of big trash. The second step is the primary treatment where it eliminates all the light materials that is remaining. The third step is the Activated sludge process where it uses bacteria and air to remove as many pollutant as possible, the air and bacteria eats all the organic material that is left. The Fourth step is Disinfection this step uses chemicals that kill many organism that can be harmful and affect our health. Last but not least is the Sludge treatment , this one passes through thickening ,digestion and dewatering this process reduces sludge and produces gas that can be use for electricity and other important things . This process use chemicals that reduces many trash from water.
ReplyDeleteIn addition this water treatment process also indicator of water quality. Some of the locations that this process occurs is in the Jamaica bay, the Hudson river, Long island and much more. Its water quality are called Fecal Coliform ,Dissolved Oxygen, Chlorophyll "a", and Secchi Transparency. We learned what is it and what does it does. This also include some of the limited ranges , meaning that each indicator has a possible risk range , acceptable range, and unacceptable. It the range of the possible risk passes it range the indicator can produce some harm to the water quality.
Overall, i belive all of this processes is very important because all this information teaches us the long and sacrificed process it passes through to keep and maintain out water clean and safe to use and drink. We learned from this to not litter our rivers , and not waste our own water that we have to use for later on, because people who work at this treatment plant process work hard and sacrifice themselves to keep our water clean as possible and accurate for our health. Therefore, we shall not contribute to damages to our water. Overall, i believe the process of the NYC treatment plant is a very smart and brilliant technology people created. I never thought it was something so complicated and long , but at the same time is very intellectual ,sketchy and interesting.
This week in Environmental Science class, we learned how wastewater is treated and the benefits of the wastewater treatments on our environment. To me this was a very interesting topic to talk about. Not only did we learn something new, but we also understand how important it is to treat our wastewater. One question we discussed was where do you think sewage water goes? My response to this was that it is treated and then released to near by rivers such as the Hudson River. I had no idea that treating wastewater was such a difficult process. The wastewater treatment process has 4 different steps that have to be taken to make sure the water is safe to flow to the cities waterways.
ReplyDeleteThe first step of wastewater treatment is called Preliminary treatment. In this process wastewater is passed through screens, which remove large pieces of trash such as plastic bottles, and newspapers. The next step is called Primary treatment. Here wastewater enters primary settling/ sedimentation tanks, which allows heavy solids to settle at the bottom of the tank and the lighter materials to float. The solids that are left are then taken to another facility that further processes these materials, and turn them into fertilizers. The process that follows is the Secondary treatment. In this step air is pumped into aeration tanks that mixes the wastewater and sludge which stimulates the growth of oxygen- using bacteria and other organisms that eat most of the remaining organic materials. The final step is Disinfection. In this process the wastewater spends a minimum of 15-20 minutes in chlorine-contact tanks mixing with sodium hypochlorite (the same chemical that is found in household bleach). This treated water/effluent is then released into local waterways. The wastewater treatment process might seem easy since it has only 4 steps that have to be taken, but in reality it takes a lot of work and time so that the environment and people can be safe.
The way I thought about sewage water was changed when I learned how well processed wastewater is before it is released to our cities waterways. I still wonder if the Hudson River is safe enough to be bathed. Learning about sewage has also changed the way I thought about life in the way that, I never knew how much things are done to make the environment safer for every individual. Therefore, we should appreciate our local waterways, and keep in mind how much time/ work is put into cleaning that water.
-Estefania Garcia, 12B
This week in Environmental science class we learned the Importance of treating sewage water.The four steps to treat waste water, in treatment plants are. One filtrate the water to get rid of the Sediments,Coagulation, Aeration and Filtration. The four steps are essentially important because they clear the water and allow the addition of chemicals to become easier to eliminate the dangerous levels of bacteria. The fact that water has bacteria is not always a threat because we ourselves have bacteria that helps our intestines.The other benefit that the treatment plants get from these for steps is that they are able to obtain natural gas from all the left over waste. This then allows for them to run their machinery and be able to save energy.In class we performed an experiment in how our water could get clean by using the chemicals that's used similarly in treatment plants.Mr. Fox had water that contained many garbage material that contaminated the water and wasn’t safe to drink. Then from thee on we where able to follow the steps of getting rid of the sediments and adding the disinfecting chemicals that surprisingly gradually showed positive results as the water began to clear up and the smell changed. It clear that these treatment plants are simply doing nature's job correctly just in a faster time because all the water waste that's accumulated. If we allow for nature to take its course then it will take ions in my opinion to recycle for re-use. It's also good to be aware that the DEP is doing a good job in monitoring the water as they have a lot of methods to prevent certain fluids to get in the water system such as fats, oil and grease (FOG) found in food ingredients such as meat, cooking oil, shortening, butter, margarine, baked goods, sauces and dairy products.This is a good method of control in my opinion and to learn more you can check the link http://www.nyc.gov/html/dep/html/wastewater/grease.shtml
ReplyDeleteIn Environmental Science class this week we learned how our cities wastewater is treated and the benefits of having our water waste treated on our environment. This week due to the interest I had in this topic I worked harder than ever before I was really into this weeks topic. This week we answered a couple of questions.Specifically one question was where do you think sewage water goes? As part of a do now my response to this was that the water is treated and then dumped into the Hudson River. Although it is not the best alternative it is better than what we would normally do.In order to treat water the wastewater treatment process has to go through 4 steps.
ReplyDeleteThis week we covered all the steps.The first step is the Preliminary treatment. This process consist of the wastewater being passed through screens,that remove the bigger pieces of trash as they filter the trash. The next step is called Primary treatment. During this step the wastewater is placed in sedimentation tanks that lets solids of heavier weight settle on the bottom and the light ones float on the top.The ones that remain are taken and made into fertilizers The next step is the Secondary treatment. This step is when they pump air into aeration tanks that mixes the wastewater and sludge together this improves the creation of oxygen while later on bacteria and organisms are used to eat the rest of the material left in the wastewater. The final step is the disinfection step. In this step the wastewater stays in a tank for 15-20 minutes.These tanks are called chlorine-contact tanks.They consist of chemicals found in normal bleach.This treated effluent with better quality is then released in our cities waterways. While it is only 4 steps this process is very time consuming we spend a lot of time in each step even though there are only 4 we complete these 4 steps with great time and care. My opinion about what waste water was and how it was treated has definitely been altered after this week. After I found out how it was processed before and the alternative that we have made I am actually liking the idea and support it. I mean I understand this isn't the best or safest way to make this process work but as of now and what we have done before this is a great substitution from the past. Learning about the steps and how complicated they can be I have learned to grow interest in the way our waterways are used I am actually interested in going more in depth and pursing maybe a little side study to get into the process of the water ways which have really interested me.
-Andy Alvarez
This week during Environmental Science we learned about indicator of water quality. The indicator of water quality are fecal coliform, dissolved oxygen, chlorophyll 'a' and secchi transparency. Fecal coliform is a bacteria that indicates the pressure of fecal matter in water. Some of these indicators can make you sick. Less than 30 cells in 100 milliliters is an acceptable amount. Dissolved oxygen is the measure of oxygen in water. More than 5 milligrams per liter is acceptable. Chlorophyll 'a' is a green pigment found in plants that allows the plant to get energy from light. Too much of it leads to eutrophication; and that increases the algae in the water and decreases the marine life in water. Less than 15 micrograms per liter is acceptable. The secchi transparency is used to measure the clarity of the water. More than 5 feet is acceptable. In groups we read about different NY Harbor's and determined how the water system was.
ReplyDeleteThis relates to my community and me because overall the harbor of N.Y. is not healthy. The indicators have improved but they are not in the acceptable standards they should be in. For example, in Jamaica Bay the only improvement there has been is the dissolved oxygen. Overall the chlorophyll 'a' and secchi transparency has been moderately improving while the fecal coliform has been the worst.
This week in Environmental Science we learned about the waste water treatment plant and how our water is treated before it is drained out into the bodies of water around us. We read articles and saw diagrams in which the process were shown. When waste water first arrives at the treatment plant it is separated from huge pieces of trash in order for the equipment inside the waste water treatment plant to not get damaged. After this the real process starts. The waste goes through aeration which is when the waste water is exposed to large quantities of air. The water is put inside a very big tank and air is put in the tank through hose under the tanks, this lets the contaminant to escape the water. Also, the odor and the taste that might be in the waste water is also removed during this process. The next process is called coagulation and flocculation. The water is moved to another tank that begins the process of coagulation during this process garbage clumps together creating huge particles called floc. Chemical added to help the process of coagulation are aluminum sulfate, or alum. Then the flocs attract each other more and more so that it is easier to remove. Sedimentation happens by adding water to the water in order for the large particles that are clumped together can settle to the bottom and then can be scraped off. The next process if filtration. This contains charcoal or other anti-synthetic materials, it may even use living organisms like algae and/or bacteria which help remove contaminants. Finally the last process is called disinfection. This is done to remove any last contaminants that may be in the water. Chlorine is added in order to remove things such as disease-causing, organisms such as bacteria or microscopic parasites. Other processes are pumping ozone, exposing ultraviolet light.
ReplyDeleteThe water treatment plan is the system that clean the water since 1942 these systems take the waste of the water. The preliminary treatment remove large pieces of trash including rags, sticks, newspaper, solf drink cans bottle, plastic cups and other similar items. The primary treatment removes heavier solids to settle to the bottom of the tank and the thing that is not that heavy in the top. The secondary treatment, they put air and seeds into the wastewater to break it down. Disinfection kills the germs and it disinfects the waste water. The sludge treatment, “thickening tanks allow the sludge to collect, settle, and separate from the water for up to 24 hours”.
ReplyDeleteWhat I found interesting was that water in treatable so that we can actually reuse it. I also found interesting that the wastewater that goes to the river end up in a treatment plant. I learned how to treat the water my self. It changed the way I think about how I treat my water. How long is the treatment process? How much water does the water contain when is being treated?
This week in Environmental Science we learned about the wastewater treatment process. There are about five different steps to the wastewater treatment: Preliminary treatment, Primary treatment, Secondary treatment, Disinfection, and sludge treatment. Preliminary treatment are bars that remove big pieces of trash such as rags, sticks, newspaper, soft drink cans, bottles, etc. Primary treatment, this is the stage where the heavier solids end up at the bottom of the tank and the lighter things to float to the top which then gets cleaned. The solids, primary sludge are pumped which separate all the object or items. The secondary treatment which is also consider to be activated sludge process because different things are put into the mix in order to break down the wastewater. This also used to create oxygen by using bacteria which eat the things that are polluting the water. The Disinfection process kills any types of bacteria or organism that still remain in the water by using different types of chemicals. Finally, the Sludge treatment collects, settle and separates the sludge from the water.
ReplyDeleteWhat I mostly found interesting was that all this steps have to happen just to clean the waste water which is created by all the trash and the bacteria that runoff carries to the streams, what worse is that runoff, rainwater, and wastewater gather up all together in one treatment plant. What I also found interesting was that when all three are combined sometimes it can overflow which then causes the water to go into the streams. My question is why is it that the sewers for rainwater, wastewater and runoff are all connected if there is a possibility that it can over the limit or the space that it can hold? This has changes my views on this because now I am able to see how long it takes to clean water so that it can be healthy to reuse so I am able to be more cautious of my trash.
Amrika Sieunarine
ReplyDeleteThis week I learned about the water treatment process. The wastewater goes through 5 major processes: preliminary treatment, primary treatment, secondary treatment, disinfection and sludge treatment. In the preliminary treatment the water passes through a series of spaced out bars. The bars remove the large pieces of trash; it is then transported to landfills. In the primary treatment the heavier objects settle to the bottom and the lighter objects float. The floatable trash is removed. Afterwards, the sludge goes through the secondary process. In this process the water goes through bacteria and other organisms that are in the sewage. This process breaks down the sludge and allows the heavier particles to settle to the bottom. The next process in disinfection, the waste water spends 15-20 minutes in chlorine mixed with sodium hypochlorite. This process disinfects and kills harmful organism. The final treatment is the sludge treatment. The sludge goes through three processes; thickening, digestion and dewatering. These three sludge treatment process further treatment to the sludge.
Learning about the waterwaste treatment process I realized that most of the pollutants are removed from the water before it is released to local waterways. This week, I have realized we are lucky that our waste water goes through these 5 processes because it cleans our water. These process shows the improvement in our water system because before our water was filthy due to the unsanitary conditions in our environment. However, new technology and new techniques have provided alternative ways to clean our water.
This week in environmental science we learned about waste water treatment plants and how they treat sewage water. There is a specific process that goes on inside the waste water treatment plant that the water goes through.
ReplyDeleteThe first step the water goes through is called Preliminary treatment. The water here is called influent. This is where the waste water passes through screens that consist of large upright bars that removes the large piece of trash that is located in the water.This is important because this protects the main sewage and pumps other equipment. The second is Primary treatment Where the water passes through primary settling tanks. Resulting in heavy solids to settle at the bottom of the tank. This part of the process is important because of the same purpose as when it meets with the first bar screens, but for far more specific reasons, so the water then can be treated more effectively. The third part is where the water goes through secondary treatment. Through areation tanks. In here the water mixes with the sludge that stimulates the growth of bacteria. Then going through final settling tanks that is known to secondary sludge. In addition, this is helpful because this helps microorganisms that are polluting in the water that are polluting that water that will later settle in the treatment. Also this helps maintain the right mix of bacteria in the tanks and continues to the removal of as many pollutants as possible.
Then, The water then later goes through disinfection. The water here is called effluent known as "treated water." This protects the health of people who use local beaches to enjoy everyday activities. The last process that sewage water goes through is called sludge treatment. This is a separated process that goes on after all the water had been treated and is process into further treating. Thickening goes on in here where sludge collects and then it separates the water for 24 hours. Digestion then goes on which stimulates the growth of aerobic bacteria. turning bacteria into methane gas. The last one is dewatering. This reduces liquid volume of sludge about 90%. All of these steps are important because this all helps aid the sludge digestion making it all safer for the environment and it also helps the water get reprocessed.
I did not know what goes on after the water goes down the sewer down the streets of my neighborhood. Now that I know it changed my perspective on water. Little did I know that dirty water does get processed after using. Evn after that using some of it at the end really does not go to waste because it also then gets recycled for drinking water. If the city of New York never had waste water treatment plants to treat dirty water we would find ourselves in an infested mess.
Thinking of New York City water I always used to only think about the Hudson River, and ugly estuary with really stinky dirty water. But really there are many more water ways like the lower New York Bay- Ratrian Bay. In class we all got important detail form a specif NY harbor. The lower Newyork Bay- Ratian bay was mine. I was asighne to see 4 major indicator to determine if the water was in good quality. The fecal coliform, Dissolved Oxygen, Chlorphyll ‘a’ and secchi transparency. After we got all the information together to determine what was happening with the NYC water if conditions where improving or not. In my case the Fecal colifoem was improving according to the 2010 summary. They are improving because it has been the lowest 20 cells/ 100ml. The DO is improving as well .They are improving because in the year 2010 the Do was the largest as well, 7.6 mg/l. Chlorphyll ‘a’ and secchi transparency on the other hand have not been improving. Nothing is improving because it has been the highest since 2002. Over all NYC water is not doing good.
ReplyDeleteIn Enviromental Science this week we learned about the way water is filtered and we actually filtered some water Mr. Fox brought in. The water was blue colored and in the end the water had to come out clear. The first step was to observe the water before the treatment. Then we added alum to the water a stirred it for 2 minutes then after that we added lime and stirred it for 2 more minutes. After that we observed the water and it turned from blue green to creamy green. Then in a cup we made different levels of sediments first sand then course sand and last gravel. This was used as our first filter we poured the water into this till the water came out clear (We held the cup with sediments over another cup because the water would be filtered again). Then we got a cup of charcoal that we poured the water into. The water came out sooo clear my group were surprised. After the activity we compared how similar our treatment of water was to the real water treatment plants.left in the w We learned the the omly difference was that they do not add anthing to their water. We added lime and alum they, add bacteria which eats anything that is left in the water. We also read articles i got the Upper East River. We had the see if the water was good quality and i learned that instead of the water improving it is getting worst the the fecal coliform in 2009 was 36 cell/100 mL and now in 2010 it was 43 cell/100 mL. This isnt good.
ReplyDeleteThis relates to my community because the body of water around New York City isnt in great quality, and this can affect us.
For this last week of the first trimester we wrapped up our water unit in Environmental Science. One of the things we talked about this week was how our water changed throughout the years until now. The main answer is wastewater treatment plants and water filtration in New York, which started in the 1900s. For the water to be treated it goes through several processes. Aeration (remove some of the contaminants in the water, and also removed odor and taste that cause compounds), coagulation (components "clump" together to form big large heavy particles, by adding bacteria), sedimentation (water is added to the vessel), filtration (sediments spills into a channel that runs to a filtration), disinfection (transferred the water to a large reservoir for distribution), and finally water quality standards (allowable level of contaminants set).
ReplyDeleteThis is important because NYC water is one of the cleanest water in the world. NYC recycles its water, which is important because there is only 3% of fresh water. The other 97% is salt water. This is important to me because it shows that the water in New York where I live is safe to drink. Before taking Environmental Science class I thought tap water to be very dirty and unhealthy. This class has changed my perspective on tap water completely. Tap water is very safe because of treatment plants and water filtration. New York water is not affecting no ones health which is important because recently the mayor of New York has been thinking about whether he should allow hydrofracking of not. If hydrofracking is to be permitted in New York it could affect people’s health, because the drilling for natural gas could contaminate the water.
During this week we learned about the process wastewater treatment plants have to clean up the wastewater. There are five steps to the wastewater treatment process. The five steps are a preliminary treatment, primary treatment, secondary treatment, disinfection and sludge treatment. This process helps New York City's wastewater get cleaned up.
ReplyDeleteIn class we were assigned the task to clean up sewage water that was given to us. We had to use the steps similar to the steps used by treatment centers. In fact we had to use filters. One made of fine gravel, coarse sand and fine sand, another one made of activated charcoal. In the end of the task we were able to clean up the sewage water. Now the sewage water was clear it also lost the blue coloring it had to begin with. It also smelled better and all the garbage it had was gone. Even though the steps taken were not exactly the same as the wastewater treatment centers, but by the end of the task we were able to see how the water treatment process is done.
It was interesting to see how the wastewater treatment process is done in New York City. This is important to know because it shows us how the wastewater is clean in our city. I wonder how the wastewater in New York City compares to other cities in the United States. I also wonder if other cities take the similar process to clean up the wastewater as New York City.
I thought I had an idea about what happens to water once its been disposed. In reality, I didn't know much. What I did know was that water was then treated to be consumed again, but I didnt know how complex the process really was. I didnt have the slightest idea that water went through a number of processes, some that I would have never thought would be possible or nessesary. This week in Environmental Science i was introduced to these processes.
ReplyDeleteAt first we were shown a chart that reflected the flow of the water treatment. My first impression was: How safe are these procedures? and how well do they clean the contamination in the water? I managed to see for myself when we preformed the five major processes to treat water. Results were drastic! I would have never believed that a blue liquid substance would end up looking like tap water with 5 steps.
The steps didnt exactly have all the methods used in a real treatment. I realized that if the water sample we experimented on turned to clean looking water without the complete process, imagine how pure it would be if we preformed all the steps. In our lab we followed the following steps; aeration, cogulation, flocculation, sedimentation, and filtration. Each process made the water cleaner if preformed correctly.
In the preformed activity, all the steps provided where nessesary elements to make the water close to consumption. Aeration is preformed because it manages to increase the levels in oxygen in doing so it looses oder and taste compounds. Coagulation was preformed because it clumps components in the water. Flocculation attracts particles to grow larger. Sedimentation is preformed to seperate the heavy materials the settle on the bottom of the container. Filtration helps make the water clear and oderless.
I began to reflect on our water conditions today from before. Before conditions were extremely unsanitary; water was left untreated and there wasn't an area to dispose wate. As a result many people died. Soon after advancement in infastructure made a series of changes which made the water treatment successful today. I was greatful that such a progress had been made. Knowing this made me less ignorant in terms of water. I never cared to think about water because its not like I've had any issues with the water I drink.
DELORYN QUEZADA
ReplyDeleteWhat I have learned this week and had found very interesting, would be the treatment process of waste water. Before this waste water treatment started occurring, the outcomes of not having one, seemed horrid; sewage was dumped into our waters without proper treatment ultimately hindering our water quality. Factors in which it hindered would include the amount of dissolved oxygen, chlorophyll'a, Fecal Cloriform, the clearness of our water, and biotic things.
In class, we experimented with a sample of sewage water. This experiment made me realize and point out the extra steps that a real waste water treatment plant does to improve the quality of daily use of water. In the lab we first went through the step of aeration. In aeration we constantly began to move the small body of water through two cups until about 2 minutes. Next was sedimentation. In this step what happened was the the lightest part of the liquid ended up on top while the densest settled to the bottom. Finally we preformed the process of coagulation/flocculation what we did here was add alumni in the waste water, and the odor started fading away at this point. Then we performed sedimentation, in this process we made our very own filer with particles such as sand and charcoal to remove the more dense material from the water, odor, and color. Through the small holes we made in the bottom of the container holding this small amount of water going through the filter, the liquid came out clearer, orderless, and transparent.
This week in Class we learned about the wastewater treatment plant, how to clean up the waste from our community, we learned about the fast step to the wastewater treatment, which are the preliminary treatment, primary treatment, secondary treatment, disinfection and sludge treatment, Also we did watch these videos about the wastewater treatment and how the process goes and how it affect people in our community and society. The wastewater treatment have these security cameras that could check whats going on between the pipes, because if the wastewater comes through one pipe and another one comes through the other pipe there could be problem, and when it raining the wastewater it overflows and causes floods.
ReplyDeleteWhat I noticed from this lab was that we did not go through all the steps specifically from those of the waste water treatment plant, and made me recognize them even more. For example, in the aeration process in reference to the treatment plant instead of moving the water sample back and forth, they place it in these large tanks with air and bacteria. The bacteria helps remove much of the contamination, because these bacterias feed on this components we want to remove. In the coagulation/flocculation process in the plant they add many more chemicals than one. They had aluminum, sulfate, and other agents. In sedimentation, the difference is that on a power plant when necessary the debris at the top is cleaned out and disposed of, while in the lab we did not remove anything. Finally in the last step of filtration, this filtration of a plant seems much efficient, and stronger due to the fact they use various amounts of gravel, and and some charcoal and bacteria.
ReplyDeleteIn conclusion, this lab made me realize how relatively strong is our waste water treatment plant compared to the simple one we did as a lab.
DELORYNQUEZADA
This week in Environmental Science our class learned about the process of wastewater treatment. New York City as well as Albany have sawyer system that are combined, this means that wastewater and raw sewage go into the same place. Unlike the new cities who have separate systems. This topic is very interesting I had always wondered how the waste water was treated and finally learned it this week. In order to treat the waste there are various steps such as the primary treatment where the waste is passed through screen in which the purpose is to remove large trash. The heavier items are brought to the bottom and the lighter items float to the top. These items are left there to turn into fertilizer used for crops. The solids are taken to secondary treatment where air is pumped inside to mix wastewater and sludge. Bacteria are used to eat the materials after this is disinfection where the water is put into chlorine for about 15-20 minutes.
ReplyDeleteLearning about wastewater and how it is treated changed what I thought because I didn’t really think much about it I thought it was an easier process. I now know that it takes a lot to treat the water. I still wonder though if the water that is treated is truly as safe as they say or if it can be more treated. I think more people should be inform about this topic.
This week in Environmental Science I learned about the indicator of water quality. The indicator of quality includes Fecal Cloriform, Chlorophyll a, Dissolved Oxygen, and Secchi Transparency. Fecal Cloriform is a type of bacteria that indicates the present of fecal matter in waterways. A Fecal Cloriform that is less than 33 cells in 100 millimeter is acceptable, 33-61 is a possible risk, and greater than 61 cells is unacceptable. Chlorophyll a is a green pigment that allows plants to get energy from light. However, when they are too much in the water, it can leads to eutrophication. A range that is less than 15 micrograms per liter is acceptable, 15-20 micrograms is a possible risk, and greater than 20 micrograms is unacceptable. Dissolved Oxygen is a measure of how much oxygen is in the water. The number of oxygen dissolved in the water column are critical for the respiration of the animals of most aquatic life forms, including fish and invertebrates. A range of more than 5 milligram per liter is acceptable, 3-5 milligram per liter is a possible risk, and less than 3 is unacceptable. Finally, Secchi transparency which is used to measure water clarity. A range greater than 5 ft is acceptable, 3-5 ft is a possible risk, and less than 3 ft is unacceptable.
ReplyDeleteThis is relates to my community base on the the Lower New York Bay Raritan Bay, Fecal Coliform was a major problem to our water in 1985, it went over the limit, but since then it started to become more acceptable. However, the amount of dissolved oxygen have not change, data shows it has continue to increase over time.
This relates to my life and my family in ways. First of all, water is important in the environment, and if there is problem with our water, we might most likely to get sick. Indicator of water quality is important because it is the four major indicators of environmental change. Therefore, not only we need to keep the environment clean, but also to be stable.
This week during Environmental Science we learned alot about the process of the wateswater treatment and the indicators inside thewater quality. During the second day of the week, everyone in the class had the opportunity to clean up or purify sewage water. The sedimentation process took some time to find out if the heavier debris settled to the bottom It was a very good experience and I did not believe that wastewater was treated in this way.
ReplyDeleteThere are at least 5 steps into clearing the sewage water. The first step is the preliminary treatment and this step is able toremove the larger pieces of trash in order to protect the main sewage. The second step known as the primary treatment is able to slow the flow of water to allow all of the heavier debris reach the bottom of the tank while the lighter objects manage to flow to the top. The third step being known as the secondary treatment is able to use bacteria to terminate all of the sludge being known as heavy debris that settles to the bottom. The fourth step which is the disinfection can have treated water be released into the local waterways. The fifth and final step, in my point of view being an extra step allows the sludge to go into another waterway to thicken, become heated to at least 95 degrees Fahrenheit for 15-20 days and dewater the liquid volume of sludge by about 90%.
Also there are 4 indicator's to use and determine the water quality. Fecal Coliform is a bacteria used to indicate the fegal matter in waterways. Chlorophyll 'a' is a green pigment that allows plants to get energy from the light. But if there is too much H2O then this leads to eutrophication. Dissolved Oxygen measures how much O2 is in the H2O. Secchi Transparency is used to measure the clariness of H2O. It's important to know about these facts since back in early times New York's sewage system was beyond severe that eventually the first wastewater treatment plant known as the North River Treatment plant was made in 1985.
This week in science class we learned how waste water gets treated. This was a topic that I was interested in learning about because it was how the water that people use on a daily basis was purified and dumped into the river even though the water isn’t completely cleansed. But this is the best alternative to what would have to be done and if this process would not happen we would have to dump the water contaminated into the river causing more pollution and more problems for our environment.
ReplyDeleteThe process of cleaning after has four main steps the first one is primary treatment which is when the water is passed through screens to separate the big chunks waste from the rest of the water. The next step is primary treatment were the water is allowed to sit in sedimentation tanks were the water separates the reaming chunks of filth to the bottom of the tank and it lets the clearer water go to the top. The next step in the water cleansing process is called the secondary treatment were the water is put in aeration tanks were air is pumped into the tank to get rid of some of the toxic smell that the garbage creates. The final step is the disinfection process were the water is put into another tank in order to put bleach into the water to disinfect the water from any chemicals that it could have encountered in its way to get to the water treatment plant. Then eventually when that is done the water is released in to the rivers. Even though the water is released in to the river with bleach and any other cleaning chemical that they might used its still better than the alternative which is just letting the water into the river without being cleansed in any way.
Know that live learned this I feel a little more confident that people are at least doing something about the water that gets used daily by the millions of people in our city. I’m very happy I learned this because in the past I use to think that the water was just dumped into the river with no cleaning or supervision what so ever. Even though the way that the water is treated in the city is not perfect and not all is taken out of the water it’s still better than anything that wouldn’t be done even though there might be a problem in the long run with dumping the water with cleaning chemicals but for now we can only solve the immediate problems that were faced with such as the disposal of water in our city.
This week in Environmental Science we focused on how waste water is treated in New York. The waste water treatment process of New York consist of 5 steps which is what makes our water clean and of a good quality.
ReplyDeleteThe first step is called preliminary treatment. During this step waste water is passes by a big filter that collects all of the big pieces of garbage. This step is important because the big pieces of water in the waste water can damage the equipment. The second step of the waste water treatment is called primary treatment in which the waste water is put in settling tanks, also called sedimentation tanks, for one to two hours. The heavier solids settle to the bottom of the tank and the lighter materials float. At the end of the process, the lighter materials and substances, such as grease, rise and is skimmed from the tank's surface. The third step is secondary treatment. The water goes through aeration tanks. In here the water mixes with the sludge which makes bacteria grow. The next step is disinfection, in which the water is put in tanks of chlorine mixed with sodium hypochlorite for 15-20 minutes. After this the water is sent out to the nearest body of water. The last step is the sludge treatment. Sludge is basically all the dirt and waste that was in the water. The sludge goes through three processes which are thickening, digestion and dewatering. They convert the treated sludge into methane gas which helps power the treatment plant.
Wastewater treatment plants are important because without them our water would be unsanitary and of poor quality. In addition to that our rivers and lakes would be dirty also. New York City's water is clean because of the processes it goes through. Before I thought that water was just filtered through a screen and mixed with chlorine but now I know that the process of cleaning waste water is more complicated.
-Vanessa Rosario
This week, we did a lab in class. Prior to the lab, we learned about how waste water is treated in waste water treatment plants. For the lab, our goal was to filter our own untreated water. Throughout the lab, we had to take notes on how the water changed in each step.
ReplyDeleteAt first, my group and I noted that the water was blue and it was dark at the bottom. Our first step that affected the water was aerating it by pouring it back and fourth with another cup. My group noticed that after aerating it our untreated water, it became a lighter color. After taking note on that, we moved onto our next step that affected the water which was adding alum to it. We had to stir for 2-3 minutes. After, we noticed that the untreated water remained the same. I remember my group and I feeling sad because nothing exciting happened. After pulling ourselves together, we then added lime into our untreated water and we saw that the water turned green, murky and it started to clump together. After that we poked holes under a cup and created a filter bed with fine gravel, coarse sand and fine sand. We had to run our water through this and observe. We saw that the water was clear but you were still able to see some green in it. Also, it was no longer murky. We then poked holes in another cup and added charcoal in it. We ran the water through the charcoal and instantly we our water became clear!!! We were so excited that we ran it through the charcoal again it became even clearer!
My group and I were happy that we succeeded in our lab and we were glad that now, we can filter our own water (just kidding).
This week in Environmental Science I learned a lot about how it feels to be a scientist. I performed a lab with my group where our goal was to clean sewer water through a wastewater treatment plant. I really enjoyed doing so because my dream is to be able to work in a laboratory one day.
ReplyDeleteThe first thing we had to do was punch a few holes at the bottom of two plastic cups. We then shook the untreated water for about 2 minutes and filled a cup half full. Afterwards we observed that the untreated water smelled horrible, contain all kind of dirty things like cigarette buds, leaves, etc, and was dark blue. We added calcium oxide which I noticed did not changed the water’s appearance all that much. Furthermore, we added flocculant which made the sludge clump towards the middle of the cup. Later, we poured 2cm of fine sand into one of the plastic cups that contained holes, followed by 2cm or course sand, and lastly 2cm of fine gravel for which we used to filter the water. I saw that this process slightly decreased the amount of particles in the water. Finally, we finished our lab by adding charcoal to the other plastic cup with holes where we filtered the water once more in order to remove the unpleasant odor.
I like science a lot and performing labs is the best way to engage hands on into what we are really trying to find out. This trimester we have been trying to find out, is our tap water safe? To end the trimester with a lab was entertaining because I experienced somewhat the process in which my water undergoes before it gets to me and after I use it.
Aeration, Coagulation\Flocculation, Sedimentation, and Filtration all are terms that demonstrate steps in the Wastewater Treatment Lab. This week we assimilated Wastewater Treatment plant process in an experiment. We simplified the following actual steps, which were the prelminary treatment, preliminary treatment, secondary treatment\ activated sludge process, disinfection, and sludge treatment. The prelminary treatment is when the influent is separated by taking the big pieces of garbage from the waste and then taking it to the next step. In the following step the primary treatment allows the lighter things to float up and then removed more trash instantly, this process is done because it is harder to detect the small dirty garbage in the water. Then the water goes to the secondary treatment and the activated sludge process where solids that are still in the water float down, while the liquid and light organism still in the water stay on the top this makes it easier to remove the things in the bottom. After this the remaining water is divided, then it comes to the final step with is disinfection. Here the water is purified with chemicals like chlorine which kills all the type of bacteria causing diseases. Then the rest of the remaining waste is called Sludge which is taken in to its own different procedures in the sludge treatment ultimately, taking out the bacteria, removing order and making energy out of it!
ReplyDeleteThis preliminary information was very helpful during the simulation experiment. Where we took a cup of Mr. Fox’s homemade waste water and through the different but similar process of Aeration, Coagulation\Flocculation, Sedimentation, and Filtration we attempted to create clean water. Although still not drink able! This experiment thought me that a lot; here I learned that sludge could be turn into a green source of energy. That was very interesting because it’s a form of using natural resources, and natural gas without hydrofracking, and instead with the waste we use daily. This got me to think of the giant landfills that we still have all over the country, and if we that we can find a way to reuse the those items or find a way to turn them in to useful energy.
This week in Environmental Science I was introduced to the water treatment process. The first step in the water treatment processes begins with the Preliminary treatment. The water here is called influent. This is where the waste water passes through screens that consist of large upright bars that remove the large piece of trash that is located in the water. This step is important because it’ll prevent any sewage from building up in the pipes, pumps and other equipment. The second step is Primary treatment, in this step the water passes through primary settling tanks. These settling tanks hold influent water where heavy solids can settle to the bottom of the tank. This part of the process is important because of the same purpose as when it meets with the first bar screens, so the water then can be treated more effectively. The third step consists of aeration tanks. In here the water mixes with air to remove odor and harmful contaminants from the influent. After the water has gone through the aeration tanks the water goes into its final setting where heavier solids settle to the bottom of the tank as secondary sludge. After this process has finished, it moves into the disinfecting process which puts the effluent, treated water, into chlorine tanks for 15-20 minutes to kill harmful organisms. Next the effluent goes into Sludge treatment. The effluent is compacted to enable further processing followed by digestion. In this step the sludge stimulates the growth of oxygen less bacteria which consume organic material in sludge. Finally the digested sludge moves into dewatering where the volume of the sludge is reduced by 90%. This is important because it helps create methane gas that powers the plant.
ReplyDeleteDuring this week in Environmental Science class we learned about the waste water treatment process. The waste water treatment process has five steps. The five major steps is the preliminary treatment, the primary treatment, the secondary treatment, then disinfection and finally the sludge treatment. In the preliminary treatment basically large pieces of trash is removed from the sewage. After all of the trash is removed, the sewage goes through primary treatment in where it goes to primary settling tanks for about two hours. What this does is have heavier solids settle to the bottom of the tank and other lighter materials to float. Then this waste water goes to secondary treatment. Here, the waste water is put in to aeration tanks, which mixes the waste water and the sludge that stimulates the growth of oxygen using bacteria and other tiny organisms. What this step also does is remove bad odors from the sewage. After the sewage goes through this step, it then goes through disinfection. The treated sewage goes to chlorine contact tanks for about 20 minutes mixed with sodium hypochlorite. Lastly, the sludge that is left gets treated.
ReplyDeleteI never thought that the water I used eventually came back to me, because after this process is done, the treated waste water gets dumped into the river. I think that it is a good idea that we have waste water treatment plants because if it wasn’t because of these plants we wouldn’t have enough water to rely on. The step from the waste water treatment plant that I find the most interesting is the secondary treatment. In this step, microorganisms are used so that they consume most of the remaining organic materials that are polluting the water. In class, we tried to clean sewage with relevant steps to those of the waste water treatment plants but with slightly different steps. For instance, sedimentation is done at first in a waste water treatment plant and in class we left this step for last. Learning about the waste water treatment plants and the process was overall very interesting.
Palorca Santos, 12K
In this week of Environmental Science, I learned about the water treatment plant and where the treated water is disposed after it has been treated. It’s a process where they’re many steps too, in order so that our water can be fresh and clean as preferred. In class we did a experiment that kind of exemplified what the water treatment plant does. When we saw the results, it really impacted my life because I saw how clean the water got, and I got to relate it to the water treatment t plant and how clean their water should be. What we had to do was, make a couple of holes on the bottom of two cups. Then we shook the untreated water and filled a cup about halfway. We then added calcium oxide; most of us thought that it didn’t do much change in the water. We hen added one more chemical called flocculent which made all the dirty chunks unite. We then poured sand into the plastic cups that had the holes we made. Then water was filtered. When finishing this experiment, I figured how clean the water from the treatment plant should be. This changed the way I thought about the water treatment plant because I thought their water wasn’t treated carefully but now I see that it is. Now when I drink water I feel like its gone through all those steps shown in the water treatment plant sheet.
ReplyDeleteThis week was an interesting week. We learned about why and how New York City started and created its many treatment plants. Before the first treatment plant was created in 1842, New Yorkers were all dumping their waste all into the river. The outcome of this was negative. People were spreading diseases every time they dump their waste. Everyday their were dead bodies waiting to be picked up all because New York did not have a sewage system to get rid of the waste. In 1842 New York's first waste water treatment plant was developed. Each treatment plant goes through 5 stages. stage1 is when the waste flows through screens which help remove the large garbage particles. Stage 2 is where the water enter primary settling tanks for 1-2 hours which allows the heavier solids to settle to the bottom of the tank. Stage 3 is when sludge from the plant treatment process is added to the waste water to break it down further. Stage 4 is when the waste water spends 15-20 minutes in chlorine contact tanks mixed with sodium hypochlorite. Stage 5 is where the leftover sludge is treated to help plants grow. I thought it was fun this week to learn about this because it was a mixture of history and science , and I love both subjects :)
ReplyDelete---BRUNEL ROSE ;)
This week we completed a lab on the treatment of sewage water. Each step we completed was similar to the steps in the Wastewater Treatment plant. First we aired the sewage water by pouring it back and forth with 2 cups. Then we added alum which made the water less cloudy and removed the odor. Then we added lime which clumped all particles together. We filtered the water through fine sand, course sand and gravel once and then we filtered it through coal 4 to 5 times. By the end the water changed from nasty smelling blue sewage water to odorless colorless water.
ReplyDeleteOur water treatment and the wastewater treatment plant have many similar qualities. They both include some kind of filtration. The wastewater treatment has bar screens that act like a filter removing big clumps of trash from the sewer water. They also pump air into the water to air it similar to what we did. Some differences are that we did not add micro organisms to eat the pollution and we did not treat the sludge.
Learning the wastewater treatment plant process and treating water myself makes me feel a little better about the water that goes down my drain and toilet. It also makes me feel better about our environment in general. I now know that not all the garbage from out sewer ends up in a landfill ruining our land and environment, they actually turn it into something that can help cultivate our crops. Also the water that ends up in sewers is not just wasted and left to accumulate, it is modified and treated.
In this week of class we learned about the process that our water is passed through in order to be ready for drinking.The first treatment is Preliminary treatment. Preliminary treatment is when the untreated water passes through bar screens ,these bar screens remove large pieces of trash.When the trash is removed its transported to land fills.the second step to wastewater cleaning is Primary treatment.In the primary treatment the water is left to settle for 1-2 hours until light objects float and heavy objects settle in the bottom.The third step to wastewater cleaning is called Secondary treatment, during this process the water is mixed with the sludge in Aeration Tanks , bacteria are added that feed on pollution to clean the wastewater.The last step to water cleansing is Disinfection,during the disinfection process water remains 15-20 minutes in chlorine and mixed with sodium hypochlorite to be disinfected.
ReplyDeleteIn class when I learned these steps that our tap,bath and cooking water go through I believed that our water is clean and safe to drink.The water goes thought all these steps before we drink it.I belive all these steps are enough to remove swage ,these step clean the water and remove any threats that may be in the water.All these steps have an influence on how clean our water is and how safe it is for us as consumers.The preliminary treatment is important because it removes garbage from our water,the removing of heavy objects in the untreated water prevents the main sewage from getting clogged. The primary treatment allows water to be further treated by letting it settle making sure to get those heavier objects in the bottom.Secondary treatment is like a double check to make sure to get out all the sewage and add bacteria to ensure that the sewage is removed from the water. The Disinfection process is my favorite step and the final step to water treatment .Disinfection is the finalization of the water cleansing it kills organisms living in the water and destroys any bacteria left in the water.
I think that these steps are very important they provide water consumers with healthy water.How sewage is collected now is very different from how it was collected before 1945.many people were dying because of the way they got rid of waste.They use to deposit their waste in their rivers which they drink from , this made their drinking water unsafe. Many people died because of these unsafe waste depositing .Now were very modern as a country we have pipes and underground sewers we also have a great water filtration system with various steps to ensure our water is not only clean but also healthy.
This week in my opinion was one of the best week I had in environmental science. This week in science class did an experiment on how to clean the water by taking out the sewage and sediment that the water had. What we first did was that recorded if any sediment were in water or what color was the water and if you could see through it. Then we Aerated the water and air bubbles started to form that took away some of the chemicals that where in the water. Then all the sediments went to the bottom of the cup. Another thing was that we added alum that made the water turn clearer but we still couldn’t see through the water. Then flocculation started happening that me the water turn in layer of green water and sediments on the bottom.
ReplyDeleteThen we used two plastic cups and did smalls holes in bottom to start our filtration. Then we did our first filtration with fine sand on the bottom of the cup, coarse sand in the middle and fine gravel on the top. What happened after we put the sewage through the filtration was that the sediments and the sewage stayed in the filtration and the water started to get clean and did not smell too much. Then we did our second filtration with charcoal that made the water turn clear and more save to drink but we repeated this step multiple times in order for the water to turn clear.
In my opinion this was the best experiments that I had so far.
In this week of Environmental science I learned about the water treatment plant and where is disposed after it has been treated it also has steps to do that process. Each step we completed was a similar to the steps in the wastewater treatment plant. First we aired the sewage water by pouring it back and forth with 2 cups, then we added alum which it made the water less dirty and cloudy and removed the odor. Then we also added lime which clumped all particles together we filtered the water through gravel once and there we filtered it through coal 4 to 5 times. By the end the water smelling blue sewage water odor less coloress water. It went to clean and clear. Award treatment plant is similar to the wastewater treatment. We also had a good process to put award treatment to the wastewater treatment.
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ReplyDeleteDuring this week of Environmental Science we learned about water treatment plants and water filtration. The two main questions that were asked was where does our water come from and where does it go when we are finished with it, and how do my actions impact the water of my community, family, and city?
ReplyDeleteThere are five steps to the waste water treatment process. The preliminary treatment is the influent which waster water passes through screens that consist upright bars, spaced one to three inches apart. This process is important because the three bars remove large pieces which protects the main sewage pumps and other equipment. Then the primary treatment which all the heavier solids settle to the bottom of the tank and the lighter materials floats on top. This process is important because it has the same purpose as when it makes the first bar screens, but for far more specific reasons , so that the water can be treated more effectively. Then the secondary treatment is when aeration tanks is when air is added/pumped into the tank to increase the growth of oxygen and organisms. Which this helps bacteria, microorganisms that are polluting the water that will later settle in the treatment process. Then the activated sludge process which is the final settling that the sludge process contains microorganisms that help maintain balance. This helps maintain right mix of bacteria in tanks and contributes to the removal as many pollutants as possible. Last but not least the disinfection process which the effluent that is chlorine is added to disinfect and kill harmful organisms. It protects the health of people who use local beaches, and enjoy other activities on the water. Finally the sludge treatment which is the thickening it allows the sludge produced by primary and secondary treatment to settle and thicken. Which helps aid the sludge digestion process. Then digestion which stabilizes and thickens the sludge by converting much of the materials into water, carbon dioxide and methane gas. Which makes it safer and helpful for the environment. Then de-watering which reduces liquid volume of sludge about ninety percent. This finally helps water get reprocessed and sent back into the rivers.
This had changed the way I thought that the water treated, at first I thought it goes down threw pipes cleaned and sent back into the Hudson River, which I had never thought that out water was recycled and we are using right at the moment we are speaking. This helps me understand why this is happening and the reason for this is because we are trying to conserve the three percent of fresh water int the world.
This week in environmental science, our class learned lots about our water and the New York City Treatment System process. Preliminary treatment, primary treatment, secondary treatment, disinfection and sludge treatment are the 5 significant processes that our wastewater goes through. The preliminary treatment is when the wastewater passes through screens of upright bars, spaced one to three inches apart. These bars remove large pieces of trash and protects the main sewage pumps and other equipment and the garbage is then transported to landfills. The primary treatment consists of the wastewater entering primary settling tanks. This is where the water is slowed, allowing heavier solids to settle to the bottom of the tank and the lighter materials to float. After the primary treatment comes the secondary treatment, which is called the activated sludge process. In this process, air and “seed” sludge from the plant treatment process are added to the wastewater to break it down further. And last but not least, the disinfection and sludge treatment process. This is the part when the wastewater spends a 15-20 minutes in chlorine-contact tanks mixing with sodium hypochlorite.
ReplyDeleteBefore learning about this in Environmental Studies, I had many of my own theories to how our water is treated after we are done utilizing it. But the real treatment process never occurred to me. Although it is a very complex process, it all makes sense to me now. I find it so funny, that I use water each and every single day and never does the thought cross my mind about where it is going or how it is being treated. It was a very educational week in Environmental Studies, indeed.
This week in Environmental Science we focused and learned the process of how waste water is treated in New York State. The waste water treatment has five steps on how to treat it.
ReplyDeletePreliminary treatment is the first step. In the preliminary treatment step the water passes by the bar screens that collects and removes big items, like bottled. If the bottles are not removed then the bottles can do damage to some of the equipments. That’s why this step is important. The next step is Primary treatment. In this step, the water passes by the first tanks so the heavy solid stuff can go down to the bottom of the tanks. This step is important because items like small pieces of plastics can get in the way, and so it can be more treated more efficiently. The third step is the secondary treatment. In this step the water goes through the process of aeration so that all the bacteria will be somewhat removed. In the final steps, the purpose is so the water can get rid of the pollution like microorganism.
After learning about the process of how waste water gets treated, our class did a lab with some sewage water that Mr. Fox made. The process was way different than the waste water treatment plant. First we started with the process of aeration. We had two cups and put the untreated water in the cups and went back and forth. Then we added chemicals like alum and lime. Then we made some filters like different type of sands and the other with charcoal. When the untreated water went through the filters, the water became clear and pretty.
- Genesis Marie Colon
Wastewater treatment plants are the primary reason why we are waterborne disease free. Our wastewater flows daily down to our city’s sewer system. At the city’s wastewater treatment plants, wastewater undergoes five major processes; the preliminary treatment, primary treatment, secondary treatment, disinfection and the final sludge treatment. The primary and secondary treatment removes between 5% to 95% of pollution from the wastewater before the threatened wastewater is disinfected and discharged into local waterways.The first of the major process is the preliminary treatment. Influent, which is the incoming wastewater that flows into the plants to remove the trash through screens or bars, those bars remove large pieces of trash such as newspapers, bottles, and sticks. This part of the process is essential since it will eliminate the trash that will potentially damage the equipment. The second of the major process is the primary setting tanks also known as sedimentation tanks for about 2 hours in which water is slowed down, this leads to the heavier solids to settle at the tank’s bottom and the lighter materials to float. Towards the end of the process both the heavy and light materials are removed. The third part of the major process is the secondary treatment. Air is pumped into the aeration tanks, which mites the wastewater and sludge that stimulates the growth of bacteria that uses oxygen. The beneficial microorganisms consume that vast majority of the verandas pollutants. This is important because it allows the microorganisms to eliminate pollutants. The fourth of the major process is Disinfection in which the effluent, which is the treated wastewater, is put into chlorine-contact tanks mixed with Sodium hypochlorite, which is similar to the chemical found in bleach. This process is important due to the fact that it eliminates all bacteria in the effluent. The Fifth and final major process is the sludge treatment. Sludge treatment has 3 stages, which are thickening, Digestion, and dewatering. Thickening lets sludge sit for up to 24 hours, some water is sent back for more treatment at the aeration. Digestion is the process after thickening, in which the sludge is further treated to make it safer for the environment. The sludge is placed in oxygen fee tanks called Fahrenheit. Methane uses is often used as an energy source at wastewater treatment plants. The third step is dewatering. It is when the water separates from solids, those caused by centrifuge.
ReplyDeleteThis is important and affects my life because I'm guaranteed to receive fresh and clean water, the fact that New York City waste water goes through all those different processes make it safe for its incredibly large population. Knowing that my water goes through selective and effective processes make me feel safe about using and drinking it.
During this week we learned how waste water gets treated in waste water treatment plants. This topic was interesting because it showed the water that people used daily and how it was purified and dumped into the river even though the water isn’t completely cleaned. This is an alternative to just dumping untreated water into the cities rivers. If the untreated water gets dumped into the river it would cause pollution and more problems for our environment and people’s health.
ReplyDeleteThe process of cleaning the untreated water has four main steps. Firstly comes primary treatment which is when the water is passed through screens to separate garbage from the rest of the water. The next step in primary treatment happens when the water is allowed to sit in sediment tanks were the water separates the remaining chunks of dirt to the bottom of the tank and. The next step in the water cleaning process is called the secondary treatment were the water is put in aeration tanks. The air is pumped into the tank to get rid of some of the toxic smell and increase the reproduction of organisms that clean the water. The final step is the disinfecting process happens when the water is put into another tank in order to put chlorine into the water to disinfect the water of any remaining pollutants. When that is done the water is released in to the rivers. Even though the water is released in to the river with chlorine, it quickly disperses into the water.
This helps me understand things better and it makes me become more confident known that the city is doing something to clean up the rivers. This has been a good step up to the usual dumping of untreated water. This will reduce contamination on the rivers. By the time I have children the river can be fully restored and cleaned.
Throughout this week we have learned about the waste water treatment plants, the way its treated, and the steps it takes to treat these polluted waters.
ReplyDeleteIn New York City there is a main sewer system in which drains waste water from different areas of the city whether it is from toilets, factories, and schools. When it rains, or snows the melting water finds its way through these sewer systems and causes many combined sewer overflows.
The waste water in these sewers reach a waste waster treatment plant in which the water is purified. In these treatment plants it takes around 7 hours to remove all the pollution from the water.
There are five major steps that these contaminated waters undergo in order for the waste water to be purified. The first step is the Preliminary treatment in which the waste water passes through screens that have upright bars that allow anything that is not liquid to be removed away from the drains. This helps protect the sewage pumps that take the waste water to the surface levels of the plant. The second step is the Primary treatment in which there are settling tanks that allows the heavier solids to settle in the bottom while the lighter solids float up to be removed from the top of the tanks. The third step is the Secondary treatment in which air pumps in large aeration tanks mix the waste water and sludge which helps consume most of the organic materials. The fourth step is the Disinfection process in which the waste water spends 15-20 minutes in chlorine-contact tanks mixed with sodium hypochlorite This helps protect the health conditions of the people using these waters. The fifth step is the Sludge treatment in which thickening tanks help separate the sludge. Then after thickening it goes through the digestion process to make the water safe for the environment. Finally, the sludge is dewatered and purified.
If there wasn't any sewer systems that allow access of the waste waters to enter these treatment plants then New York City would become more polluted and their would be an epidemic.
Before waste water treatment plants, New York City's water supply was of the lowest quality. The water was so polluted that captains would sail their ships into New York's harbor in order to kill off the barnacles attached to their ships. Not only was the water contaminated enough to kill barnacles, but sailors could smell New York three miles away from the shore. Citizens would deposit their wastes onto the open streets and nearby streams and rivers. Because of the increasing amounts of pollutants in the water, waterbourne diseases such as cholera eventually broke out. Thousands of people died from cholera, and so New York City came to the realization that something must be done in order to improve the quality of the water. One way to do that was through a systems called "The Wastewater Treatment Plant".
ReplyDeleteIn order to understand the process that sewage water undergoes to become drinkable water, a lab was conducted throughout this week. In this lab, the objective was to improve the quality of the sewage water. In order to clean the sewage, we did a process called airing, which was basically transferring the water back and forth in two cups. After, alum and lime were added in order to remove its odor and color. Then, the water was filtered through coarse sand, fine sand, and gravel. Finally, the water was filtered through coal. It was amazing to see how the water changed from something teal and nasty to transparent and clean. In the wastewater treatment plant, sewage goes through the same process. It is skimmed, then it is aired, disinfected, and finally filtered. The leftover sludge undergoes a different process.
Visiting the wastewater treatment plant and doing the lab helped me understand how my water undergoes its cycle. I've always wondered where my tap water came from and where it goes when it drains. I understand and consider myself lucky that I have access to clean drinkable water and that New York City has takes water quality seriously.
In class I learned about the waste water treatment plant and how it keeps our water clean. New York City is one of the cities that have a Combined Sewer System which is storm water mixed in with wastewater and sends them to the same wastewater treatment plant. In the middle of the 19th century, there wasn't a sewer system and the residents used to dispose wastes in their backyards or on the streets which caused epidemic outbreaks, and waterborne diseases such as yellow fever and cholera. As the population increased. the demand for fresh water grew. The first sewage treatment plan was constructed in the late 19th century. In 1904 the Metropolitan Sewage was created the commision started to study and analyze New York City's water. The waste water treatment plant was one solution of keeping our water clean and safe to consume.
ReplyDeleteThere are five steps to the wastewater treatment process, the first step is preliminary treatment, which passes through spaced out bars. The bars help remove large pieces of trash and are transported to landfills. The second step is the primary settling tanks/sedimentation tanks, which allows heavy solids settle down to the bottom, and lighter solids to float. The lighter solids are then removed. The third step is called secondary treatment which are also aeration tanks it breaks organic matter down, bacteria consume the organic materials that pollute the water. The fourth step is called Disinfection, it's important because the treated wastewater kills harmful organisms, the water stays in for 15-20 mins with chlorine (found in common household beach). The fifth step is the sludge treatment and this process allows the sludge collect, settle and seperate from water up to 24 hours. it also passes through thickening ,digestion and dewatering this process reduces sludge and produces gas that can be use for electricity and other important things . This process use chemicals that reduces many trash from water.With the wasterwater treatment plants they handle and process 1.3 billion gallons of sewage per day.This waste water treatment is a benefit to the city since many countries do not have clean water, or a system similar to the waste water treatment plant and die from dieases each day.
This week IN environmental science class I have learned about water treatment plants. Water treatment plants are Plants that treat wastewater. Wastewater that is being treated comes from toilets, baths, sinks, and outside sewage system.
ReplyDeletein class my environmental teacher Mr. Fox created sewage water and assigned us to treat it clean .to do that there are five interesting steps that are very similar to the strategies used at the treatment plants. To reach the goal of treating that sewage water we needed gravel, coarse sand, and fine sand, and charcoal. The steps to cleaning this infested water particles to stick together, second to put the small rock particles with some sand in order trap some of the pollutants found in sewage water. After repeating this process once more we added a liquid to the water that would make it clearer. The last step to this assignment/ investigation was to pore the charcoal rock into the cup of water and let it sit for a while when we take out the charcoal the waters nasty aroma disappeared slightly we repeated this step once more and the sewage smell to it was disappearing. The results my group received was outstanding.
This is real interesting the results after each and every step to treating this sewage water. It makes me wonder exactly how the water treatments treat their sewage water, not just one but many different treatment centers just to in rich my knowledge of many deferent ways water can be cleaned. Clean water really matters because a human’s body is made out of more than 50% of water. Water is the Number one healthy anything your body will need to keep its self up and going. Te water in New York which is the state I live in is not bad at all its levels reach state standards according to what I learned in class. This lesson and Lab Helped me understand that something is being done to help the environment because before I had no idea that the water entering the sewage system was being treated I believe it went straight to the river.