The Beginners Guide To Water (Getting Started 101)

Treatment of Sewage The act of removing contaminants in wastewater from households is known as sewage treatment. Biological, chemical as well as physical processes are involved during wastewater treatment in order to remove any contaminants that are present in the sewage. Sewage exists in a slurry or semi-solid state referred to as sludge. This sludge usually goes through various treatment stages before it is suitable for land application or disposal. Another term used to refer to sewage treatment is wastewater treatment. Sewage that is found in sewers is usually produced by industrial, institutional, residential as well as commercial establishments. Dirty water from sinks, kitchens, showers, bathrooms and other places constitute sewage which flows into the sewers. Once the wastewater goes into the sewers, it is carried by a large pipe into the treatment plant. There are various stages involved during sewage treatment. Bottles, rags, face wipes, sanitary, diapers and other large contaminants are usually removed from the wastewater during the first stage known as screening. Removal of these contaminants is usually done in the first stage in order to prevent blockage or damage of equipment used in the treatment plant. Sometimes, grit might get washed into the sewer which is why special equipment is used in order to get rid of it. During the second stage, waste water is separated from the organic solid matter. Human waste which forms the organic solid matter is gotten rid of by passing the sewage into settlement tanks. The solid waste that sinks to the bottom of the tank after the sewage has settled is referred to as sludge. There are large scrappers found in the settlement tanks whose purpose is to scrape off the solid waste at the bottom of the tank and get them to another compartment for further treatment. The other water is put into tanks referred to as aeration lanes. Any bacteria present in the water is used to break down small bits of sludge that might have gone through during the scrapping stage.
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The final treatment stage involves wastewater being driven into a settlement tank. In the settlement tanks, the small bits of sludge goes to the bottom of the tank as soon as they are acted upon by bacteria. This helps to get rid of any chemical substances or armful things in the water. The wastewater is then allowed to pass through a wall where it is filtered using a bed of sand in order to get rid of any additional particles.
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Sewage treatment is very important as once the process is over, the water can then be released into the environment without any contaminants or toxins. People can even get to reuse water in performing household chores.