A sewage treatment process in which a part of decomposer bacteria present in the wastes…
Biology · Class 12 · CBSE — Microbes in Human Welfare
A sewage treatment process in which a part of decomposer bacteria present in the wastes is recycled into the starting of the process is called as
- primary treatment
- activated sludge treatment
- tertiary treatment
- none of these.
Answer
(B) activated sludge treatment
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