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Civil Engineering - Waste Water Engineering - Discussion

Discussion Forum : Waste Water Engineering - Section 7 (Q.No. 23)
Waste Water Engineering
23.
The normal values of over flow rates for sedimentation tanks using coagulent, ranges between
25, 000 to 35, 000 litres/sqm/day
40, 000 to 50, 000 litres/sqm/day
50, 000 to 60, 000 litres/sqm/day
80, 000 to 100, 000 litres/sqm/day
none of these.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
14 comments Page 1 of 2.
Taba Tallum said:   1 month ago
As per my knowledge, the right option should be (E) none of these.

Overflow rate for the sedimentation tank is 1000 - 1250 litres/sqm/hour or 24000 - 30000 litres/sqm/hour.
Agha Bilal said:   5 months ago
Yes, you are right @Hardik.

The given answer option C is correct.
For Sedimentary tanks using coagulant- 50000 to 60000.
For plain primary sedimentation tanks- 40000 to 50000.
For secondary sedimentation tank - 25000 to 35000.
M Subash shiva said:   4 years ago
Option C is correct for primary sedimentation.

Option A is for secondary sendimentaion.
Anirban Roy said:   5 years ago
Yes, Option A is correct.
Sahil Chavda said:   5 years ago
Right, thanks @Hardik.
Sahil chavda said:   5 years ago
For Sedimentary tanks using coagulant- 50000 to 60000.
For plain primary sedimentation tanks- 40000 to 50000.
For secondary sedimentation tank- 25000 to 35000.
(3)
Abhishek said:   5 years ago
Right, thanks @Hardik.
Gaurav said:   5 years ago
Options A is the correct answer.
Hardik said:   6 years ago
@Dheeraj. I don't know I'm right or wrong. In above comment I just combined all the 3 question which is given in this section of WWE. !
Dheeraj said:   6 years ago
@Hardik is wrong. And rest of the all you are correct.
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