What happens to activated sludge? - Vidyadip

MCQ

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
✓
The major part of the sludge is pumped into large tanks called anaerobic sludge digesters
D
It undergoes sequential filtration

✓

Answer

Correct option: C.

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

c
A small part of the activated sludge is pumped back into the aeration tank to serve as inoculum while major part of activated sludge is pumped into large tank called anaerobic sludge digesters.

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