Civil Engineering - GATE Exam Questions - Discussion

24. 

Chlorine is some times used in sewage treatment

[A]. to avoid flocculation
[B]. to increase biological activity of bacteria
[C]. to avoid bulking of activated sludge
[D]. to help in grease separation

Answer: Option C

Explanation:

No answer description available for this question.

Roy said: (Dec 17, 2017)  
D is the correct answer.

Bharat Chaudhary said: (Oct 12, 2018)  
According to me, Both C and D are correct.

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