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Civil Engineering - UPSC Civil Service Exam Questions - Discussion

Discussion Forum : UPSC Civil Service Exam Questions - Section 1 (Q.No. 40)
UPSC Civil Service Exam Questions
40.
Activated sludge is the
resultant sludge removable from the aeration unit
sludge settled in the humus tank
sludge in the secondary tank post-aeration rich in microbial mass
sludge.in the secondary tank post aeration, rich in nutrients.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
2 comments Page 1 of 1.
Yempee said:   6 years ago
Thank you @Rishabh.
Rishabh katiyar said:   6 years ago
Activated sludge is a thick soft substance used for removing pollutants from waste water by a biological reaction that involves oxygen. The activated sludge is then separated from the treated wastewater and disposed of or returned to the process as needed.
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