What You Should Know About Water This Year

Wastewater Treatment Process

The act of removing contaminants in wastewater from households is known as sewage treatment. In a water treatment plan, biological, chemical and physical processes are used to remove contaminants found in the sewage for the water to be safe for the environment. Before treatment, sewage usually occurs in a slurry or a semi-solid state which is known as sludge. In order for sludge to be ready for land application or disposal, it has to go through several treatment stages. 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.

Once the wastewater goes into the sewers, it is carried by a large pipe into the treatment plant. Water treatment is usually a process and it occurs in various stages. Bottles, rags, face wipes, sanitary, diapers and other large contaminants are usually removed from the wastewater during the first stage known as screening. Since these contaminants might damage the equipment used in the treatment process or even cause blockage, they are removed at the first stage. Special equipment is used in order to remove any grit that has washed into the sewer.

The second stage of sewage treatment is where organic solid matter and wastewater are separated. Human waste which forms the organic solid matter is gotten rid of by passing the sewage into settlement tanks. The solid wastes are thus able to sink to the bottom of the settlement tank and are referred to as sludge. In the treatment plant, there are large scrappers used to scrape away the solid waste settled at the bottom of the tanks and is pushed to another compartment where further treatment is carried out. There are aeration lanes in these treatment plants whereby wastewater is put once sludge has been scrapped off. The small bits of sludge that gets through to the wastewater are broken down using bacteria.
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During the final treatment stage, the wastewater goes through 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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The water that is released into the environment after the treatment process is usually devoid of any toxins or contaminants which is why this process is very useful. The water can be purified to be pumped into homes for people to use for domestic purposes without it getting wasted.