Activated sludge usually employs an aeration period of ________________ Options: A . &nbsp1 hour B . &nbsp24 hours C . &nbsp10-15 hours D . &nbsp4-8 hours

Activated sludge usually employs an aeration period of _______________

Question

Activated sludge usually employs an aeration period of ________________

Options:

A . 1 hour

B . 24 hours

C . 10-15 hours

D . 4-8 hours

Answer: Option D
Answer: (d).4-8 hours

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