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What happens to activated sludge?...

What happens to activated sludge?

A

It is generally released into natural water bodies like rivers and streams

B

It is completely pumped back into aeration tank to serve as inoculum

C

The major part of the sludge is pumped into large tanks called anaerobic sludge digesters

D

It undergoes sequential filtration

Text Solution

Verified by Experts

The correct Answer is:
C
A small part of the activated sludge is pumped back into aeration tank called anaerobic sludge is pumped into large tank called anaerobic sludge digesters.
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