A) A small part of the activate sludge is pumped back into the aeration tank to serve as incoculum
B) Activated sludge cannot be used in anaerobic digestion process
C) Anaerobic bacteria digest aerobic bacteria in sludge digesters
D) Transfer of primary effluent in aeration tanks.
Correct Answer: B
Solution :
Activated sludge cannot be used in anaerobic digestion processYou need to login to perform this action.
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