Explain in detail the methods of treatment of sewage?

Question: Explain in detail the methods of treatment of sewage?

Sewage treatment involves several methods to remove contaminants and pollutants from wastewater before it is released into the environment. The primary treatment methods include physical, chemical, and biological processes. Physical treatment involves the use of screens and sedimentation tanks to remove large debris and solids from the wastewater. Chemical treatment involves the use of coagulants and disinfectants to remove dissolved pollutants and pathogens. Biological treatment uses microorganisms to break down organic matter in the wastewater, which can be accomplished through various methods such as activated sludge treatment or trickling filters. After treatment, the water is disinfected and released back into the environment or reused for irrigation or other non-potable purposes.

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