The activated sludge process consists of returning a portion of the clarifier

Question: The activated sludge process consists of returning a portion of the clarifier
[A].

effluent water entering the reactor

[B].

influent water coming out of the reactor

[C].

influent water entering the reactor

[D].

effluent water coming out of the reactor

Answer: Option C

Explanation:

No answer description available for this question.