First slide

Microbes in Sewage Treatment

Question

Which of the following is used in secondary treatment of sewage water?

Easy

A

Fermentation tanks
B

Digester tanks
C

Detoxification tanks
D

Aeration tanks

Solution

In the secondary treatment or biological treatment the primary effluent is passed into large aeration tanks where it is constantly agitated mechanically and air is pumped into it which allows vigorous growth of useful aerobic microbes into flocs.

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