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Wastewater Treatment Process Sewage treatment is basically the process involved when wastewater from households is treated by removing any contaminants in it. 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. There are various treatment stages that the sludge goes through for it to be suitable for disposal or land use. In Sewage treatment is also referred to as wastewater treatment. Sewage is usually generated by commercial, residential, industrial as well as institutional establishments. The water used in most households in showers, sinks, kitchens, showers among others forms the sewage that flows in sewers. Sewage from the sewers is carried into the treatment plant using large pipes put in place. Water treatment is usually a process and it occurs in various stages. During the first stage which is known as screening, large contaminants such as rags, broken bottles, diapers, sanitary, face wipes among others are removed from the sewage. These objects are removed first in order to prevent them from damaging the equipment used in the plant and prevent blockage as well. Sometimes, grit might get washed into the sewer which is why special equipment is used in order to get rid of it. Separation of wastewater from organic solid matter is usually the second stage of sewage treatment. Basically, organic solid matter is human waste and it is removed by getting 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. Once the sludge has settled down at the bottom of the tank, it is scrapped off using large scrappers and then pushed to another section where it goes through further treatment. After the sludge is scrapped off, the remaining wastewater is put into tanks known 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. Once the bacteria acts on the small pieces of sludge, they settle down at the bottom of the tank. Once the process is over, the water is devoid of any harmful substances such as chemicals or toxins. In order to get rid of additional particles, there are huge walls of sand where the water is passed through.
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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.