Given below is the flow chart of sewage Treatment.
Identify A, B, C, D and E and select the correct option

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A – Large aeration tank, B – Mechanical agitation, C – Increased BOD, D – Activated sludge

A – Small aeration tank, B – Microbial digestion, C – High BOD, D – Activated sludge, E –Aerobic sludge digesters

A – Large aeration tank, B – Mechanical agitation, C – Reduced BOD, D – Activated sludge, E – Anaerebic sludge digesters

A – Small aeration tank, B – Microbial digestion, C – Low BOD, D – Activated sludge, E Anaerobic sludge digesters

answer is D.

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Detailed Solution

A) - Large Aeration tank B) - Mechanical agitation

C) – Reduced BOD D) – Activated sludge

E) – Anaerobic Sludge Digesters

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