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Which of the following has a minimum detention period?

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+1 vote
in Environmental Engineering by (81.4k points)
Which of the following has a minimum detention period?

(a) Sludge digestion tank

(b) Primary sedimentation

(c) Skimming tank

(d) Oxidation pond

This question was posed to me in exam.

The question is from Grit Chambers, Tanks and Vacuum Floatation topic in section Unit Operations for Wastewater Treatment, Preliminary Treatment of Environmental Engineering

1 Answer

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Best answer
The correct answer is (c) Skimming tank

Easiest explanation: The skimming tank has a minimum detention period with a value of 3  minutes.

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