Home Biology Microbes in Human Welfare Previous Year Questions Treatment Plant (STPs).adequate oxygen.
Biology Microbes in Human Welfare Previous Year Questions Numeric Response
Published on: August 26, 2026

Treatment Plant (STPs).

adequate oxygen.

B

When treated in STPs does not really require the aeration step as the sewage contains

C

Has very high amounts of suspended solids and dissolved salts.

D

Has a high BOD as it contains both aerobic and anaerobic bacteria.

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The correct answer is:
b

(b)

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