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Secondary sewage treatment is mainly a...

Secondary sewage treatment is mainly a

A

Biological process

B

Physical process

C

Mechanical process

D

Chemical process

Text Solution

Verified by Experts

The correct Answer is:
A
Secondary treatment or biological treatment involves vigorous growth of useful aerobic heterotrophic microbes into flues. While growing these microbes consume the major part of the organic matter present in the efficient.
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Secondary treatment or biological treatment of waste or sewage is done by the :-