Civil Engineering - Water Supply Engineering - Discussion

Discussion Forum : Water Supply Engineering - Section 2 (Q.No. 20)
20.
The period of cleaning of a slow sand filter, is usually
5 to 10 days
two weeks to three weeks
one month to three months
three months to six months
one year.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
2 comments Page 1 of 1.

Hewad khan said:   4 years ago
For rapid : 2-3 days. Because the Rapid Sand filter is 30 times of slow sand filters.

Ibadur Rahman Choudhury said:   5 years ago
Can anyone explain about the rapid sand filter?

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