Explain the sewage treatment plant operation

Question

Accepted Answer

Sewage treatment plants use physical, chemical, and biological processes to remove contaminants from wastewater before it is released back into the environment.

Sewage enters the plant through pipes and is first screened to remove large objects like sticks and plastic.
The sewage then undergoes primary treatment where solids settle to the bottom and scum floats to the top, which is removed.
Secondary treatment involves biological processes where bacteria break down organic matter in the sewage.
Finally, the treated water is disinfected with chemicals or UV light before being released into rivers or oceans.
Some sewage treatment plants also have tertiary treatment processes to further remove nutrients and contaminants.

Explain the sewage treatment plant operation

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