Activated sludge has the ability to settle quickly this enables it to: – McqOptions

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1.	Activated sludge has the ability to settle quickly this enables it to:
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.
Answer» B. absorb pathogenic bacteria while sinking to the bottom of the settling-tank.

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