Multiple Choice
How does Sphaerotilus interfere with an activated sludge system?
A) by coating rocks with a slimy film and decomposing organic matter
B) by removing flocculating substances
C) by proliferating in the floating matter that contaminates the effluent
D) by converting nitrates to nitrogen gas and blocking the nitrogen stripping tank
Correct Answer:

Verified
Correct Answer:
Verified
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