Biology · Microbes in Human Welfare
Activated sludge should have the ability to settle quickly so that it can:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Absorb colloidal organic matter
- 2Be discarded and anaerobically digested completely
- 3Absorb pathogenic bacteria present in wastewater while sinking to the bottom
- 4Be rapidly pumped back from the settling tank to the aeration tank✓
Correct answer
Be rapidly pumped back from the settling tank to the aeration tank
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