Question
Question: Activated sludge should have the ability to serrle quickly so that it can...
Activated sludge should have the ability to serrle quickly so that it can
A
Be rapidly pumped back from sedimentation tank to aeration tank
B
Absorb pathogenic bacteria present in waste water while sinking to the bottom of the settling tank
C
Be discarded and anaerobically digested
D
Absorb colloidal organic matter
Answer
Be rapidly pumped back from sedimentation tank to aeration tank