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This question belongs to Civil Engineering Environmental Engineering

Environmental Engineering

?

Period of cleaning of slow sand filters is about

A) 24 - 48 hours B) 10 - 12 days C) 2 - 3 months D) 1 - 2 year

Answer & Solution

Correct Answer: Option C

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Question posted by Examveda

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2 Comments

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Rajesh Nandha 6 years ago

Option 1 and 2 is not right because bacteria formation in slow sand filters will take 10 to 12 days
Years together also is not advisable because efficiency will be down
So option c is right

Vayasdev Chatterjee 7 years ago

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