The microorganisms involved in floc formation | vedclass

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Question

(B) The correct answer is $B$.During the secondary treatment of sewage,the primary effluent is passed into large aeration tanks where it is constantly

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aerobic bacteria and fungus

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(B) The correct answer is $B$.During the secondary treatment of sewage,the primary effluent is passed into large aeration tanks where it is constantly agitated mechanically and air is pumped into it.This allows vigorous growth of useful aerobic microbes into flocs.Flocs are masses of bacteria associated with fungal filaments to form mesh-like structures.These microorganisms consume the major part of the organic matter in the effluent,thereby significantly reducing the $BOD$ (Biochemical Oxygen Demand) of the sewage.

The microorganisms involved in floc formation during sewage treatment are

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