Sewage treatment process in which part of decomposer bacteria is recycled into starting

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Sewage treatment process in which part of decomposer bacteria is recycled into starting of the process is called

Options

(a) Cyclic treatment
(b) Primary treatment
(c) Teritary treatment
(d) Activated sludge treatment

Correct Answer:

Activated sludge treatment

Explanation:

Activated sludge treatment involves air or oxygen being introduced into a mixture of screened, and primary treated sewage or industrial wastewater (wastewater) combined with organisms to develop a biological floc which reduces the organic content of the sewage.

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Topics: Microbes in Human Welfare (63)
Subject: Biology (4253)

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