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The filter run in rapid sand filter should not be less than _____ hours.

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+1 vote
in Environmental Engineering by (81.4k points)
The filter run in rapid sand filter should not be less than _____ hours.

(a) 1

(b) 6

(c) 12

(d) 24

This question was addressed to me in homework.

Query is from Comparison Between Slow and Rapid Sand Filter topic in section Filtration of Environmental Engineering

1 Answer

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Best answer
Correct choice is (d) 24

Easy explanation: The filter run in rapid sand filter should not be less than 24 hours and its head loss should not exceed 2m.

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