The wastewater enters an aeration tank, where it is mixed with sludge. Air is then pumped into the aeration tank to facilitate the growth of bacteria and other small organisms within the sludge. The bacteria and other microorganisms break down the organic matter in the water into harmless byproducts.
How Does a Sewage Treatment Plant Work?
A sewage treatment plant is a facility that processes wastewater and sewage for removal of contaminants, pollutants and other hazardous materials.
The purpose of a sewage treatment plant is to reduce the amount of pollutants and contaminants in the water, making it safer to use and to release back into the environment.
Sewage treatment plants can be found in both urban and rural areas, and are an essential part of the water cycle. The process of wastewater treatment begins with a pre–treatment stage.
This is where larger pieces of material, such as rags, sticks, and plastic are removed from the wastewater. Next, the wastewater is sent through a screen to remove smaller pieces of debris.
After screening, the wastewater enters a sedimentation tank, where it is allowed to settle and the solids are removed. The next step in the process involves aeration.
This process is done by introducing air into the wastewater, which helps to break down organic material. Aeration also helps to reduce the amount of dissolved oxygen in the wastewater, making it less hospitable to pathogens and bacteria.
The wastewater then enters a secondary sedimentation tank, where the solids settle out and are collected. The wastewater then goes through a filtration process, which removes particles that are too small
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