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A sewage treatement process, in which a ...

A sewage treatement process, in which a part of decomposer bacteria present in the wastes is recycled into then starting of the process is called

A

Cyclic treatment

B

Activated sludge treatment

C

Primary treatment

D

Tertiary treatment

Text Solution

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The correct Answer is:
B
The sewage water is treated till BOD is reduced. Once BOD of sewage or waste water is significantly the effluent of aeration tank is then passed into a settling tank where bacterial flows are allowed to sediment. This sediment is called activated sludge.
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