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The minimum detention period of combined aerator is ___________

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+1 vote
in Environmental Engineering by (81.4k points)
The minimum detention period of combined aerator is ___________

(a) 1 hour

(b) 2 hours

(c) 3 hours

(d) 4 hours

The question was posed to me in unit test.

Enquiry is from Mechanical Aeration System, Treatment of Sludge topic in section Sewage Filtration and Activated Sludge Process of Environmental Engineering

1 Answer

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Best answer
Correct option is (c) 3 hours

Explanation: The detention period of combined aerator lies between 3 to 4 hours and the minimum detention period is 3 hours.

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