NEETZoologyMicrobes in Human Welfare
Activated sludge should have the ability to settle quickly so that it can
Options
- ABe rapidly pumped back from sedimentation tank to aeration tank
- BAbsorb pathogenic bacteria present in waste water while sinking to the bottom of the settling tank
- CBe discarded and anaerobically digested
- DAbsorb colloidal organic matter
Correct answer
A. Be rapidly pumped back from sedimentation tank to aeration tank
Step-by-step solution
Activated sludge should have the ability to settle quickly so that it can be rapidly pumped back from sedimentation tank to aeration tank.