Civil Engineering - Waste Water Engineering - Discussion

Discussion Forum : Waste Water Engineering - Section 5 (Q.No. 44)
44.
The width of a settling tank with 2 hour detention period for treating sewage 378 cu m per hour, is
5 m
5.5 m
6 m
6.5 m
7 m.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
14 comments Page 2 of 2.

Sachin said:   8 years ago
@ALL.

Here, the units don't match.

LHS: In seconds.
RHS: In m/s.
How can you use it then?

Basudeb kumar shil said:   8 years ago
Thanks @Naveen Kallan.

Naveen Kallan said:   8 years ago
T = Q/BxL.

BxL = 378/2 = 189,
Usually L = 4B,
Therefore 4B^2 = 189,
B = 6.87~ 7m.
(1)

Dhrubajyoti Ray said:   8 years ago
Please solve it clearly.


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