Civil Engineering - Waste Water Engineering - Discussion

Discussion Forum : Waste Water Engineering - Section 1 (Q.No. 34)
34.
The ratio of minimum hourly flow to the average flow of sewage is
1/4
1/3
1/2
3/4
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
5 comments Page 1 of 1.

Arpit shukla ji said:   8 years ago
Min. Hourly flow =1/2 * avg flow.

Xyz said:   8 years ago
Maximum daily flow i= 2 Avg annual daily flow.
max hourly flow = 1.5 max daily flow=3 annual average daily flow.
Minimum daily flow=2/3 annual average daily flow.
Minimum hourly flow=1/2 minimum daily flow=1/3 annual average daily flow.
So the answer is correct.
(7)

Har said:   8 years ago
Here average flow of sewage=annual average daily flow.
(2)

Rkv said:   5 years ago
Can anyone explain this clearly?

Liaqat said:   3 years ago
The minimum hourly sewage flow is equal to 50% of average sewage flow =1/2 of average sewage flow.

To calculate maximum or peak sewage flow we take peak factor i,e PF=1+(14/4+ √P).
where P is the population in thousand. And then multiply the peak factor with the average sewage flow to calculate the maximum sewage flow.

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