Use of chlorine in the treatment of sewage Options: A . &nbsphelps in grease separation. B . &nbspincreases the biological oxygen demand(BOD). C . &nbspcauses bulking of activated sludge. D . &nbspaids in flocculation.

Use of chlorine in the treatment of sewage

Question

Use of chlorine in the treatment of sewage

Options:

A . helps in grease separation.

B . increases the biological oxygen demand(BOD).

C . causes bulking of activated sludge.

D . aids in flocculation.

Answer: Option A
Answer: (a).helps in grease separation.

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