Civil Engineering - Water Supply Engineering - Discussion

Discussion Forum : Water Supply Engineering - Section 2 (Q.No. 18)
18.
After cleaning a slow sand filter, the filtered water is not used for
6 hours to 12 hours
12 hours to 18 hours
18 hours to 24 hours
24 hours to 36 hours
48 hours.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
8 comments Page 1 of 1.

Aman mussa said:   3 years ago
Explain this in detail. Please.

MJM Gcek said:   4 years ago
And what about rapid gravity filter? Explain please.

Amit said:   5 years ago
Please give the explanation of the correct answer.

Vipul said:   7 years ago
It is 24 to 48.
(2)

Venkat ramana said:   7 years ago
It is 24 to 48 hours since we need to wait for the formation of schmudzdecke layer, which plays a crucial role in the working of slow sand filter.
(2)

Ganesh said:   9 years ago
It is 24-48 hours.
(1)

Nity said:   9 years ago
48 hours is the correct answer. Because, waiting for the formation of schmutzdecke layer. Therefore by Biological metabolism---> bacteria consumes all organic matter from the water.
(1)

Sahil said:   9 years ago
Why? Explain.

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