Microbes In Human Welfare Question 21
Question: Activated sludge has the ability to settle quickly this enables it to:
Options:
A) be rapidly pumped back from sedimentation to aeration tank.
B) absorb pathogenic bacteria while sinking to the bottom of the settling-tank.
C) anaerobically digested and be discarded.
D) absorb colloidal organic matter.
Show Answer
Answer:
Correct Answer: A
Solution:
[a] Activated sludge should have the ability to settle quickly so that it can be rapidly pumped back from sedimentation to aeration tank.
BETA
