Question

The sewage treatment in which biological decomposition of organic matter takes place are called

Answer 1

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$\huge{\mathfrak{Answer}}$

Activated sludge process

extra info✔️✔️

It uses micro-organisms and air to biologically oxidize the organic pollutants. This uses naturally occurring bacteria and protozoa thus it is eco-friendly as well as economical process.

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Answer 2

Activated sludge process

extra info✔️✔️

It uses micro-organisms and air to biologically oxidize the organic pollutants. This uses naturally occurring bacteria and protozoa thus it is eco-friendly as well as economical process.