Civil Engineering - Water Supply Engineering - Discussion

Discussion Forum : Water Supply Engineering - Section 3 (Q.No. 9)
9.
The detention period for plain sedimentation water tanks, is usually
4 to 8 hours
8 to 16 hours
16 to 24 hours
24 to 36 hours.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
45 comments Page 1 of 5.

Shubh said:   5 years ago
Fill and draw-type of sedimentation tank 24 to 36 hrs.

Continuous flow type 2 to 4 hr for CAS.

And 4 to 8 hrs for plain sedimentaton.

SATISH VERMA said:   7 years ago
4 to 8 hour is correct for plain sedimentation.

Don said:   7 years ago
A. Detention period for plain sedimentation tanks ranges between 4 to 8 hours.
B. Detention period for sedimentation tanks, using coagulants usually ranges between 2 to 4 hours.
C. The horizontally flow velocity in sedimentation tanks, is generally limited to 0.3 m/minute
the above options all are correct its depends on situation.

Harpal said:   7 years ago
The correct Answer is 4 to 8.

Avijit said:   7 years ago
No, it's 4 to 8 hours only.

Anuja said:   7 years ago
4 to 8 hours for plain sedimentation.

Jeet said:   7 years ago
Answer is 4 to 8 hours.

Cleaning period will be 24 to 36 hours.

Vipul Rabari said:   7 years ago
4 to 8 hrs for quiescent type.

42 to 36 for continuous flow type.

Ranjan barman said:   6 years ago
The correct answer should be 4-8 hour.

Vibha said:   6 years ago
Yes, option A is the correct answer.


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