Civil Engineering - Waste Water Engineering - Discussion

3. 

No treatment of the sewage is given if dilution factor is

[A]. less than 150
[B]. between 150 to 200
[C]. between 200 to 300
[D]. between 400 to 500
[E]. more than 500

Answer: Option E

Explanation:

No answer description available for this question.

Bivek said: (Jan 2, 2018)  
It is A.

Abhi said: (Apr 25, 2018)  
The Answer is correct, Above 500 dilution factor, there is no need for treatment.

Reference: ME Handbook Pg 427 Disposing of Sewage Effluents.

Uttu Don said: (Sep 29, 2018)  
> 500 no treatment.
350-500 - screening sedimentation.
150-350 - screening sedimentation aided with coagulation.
<150 - complete thoroughly treatment required.

Ravi said: (Sep 29, 2018)  
What is dilution factor?

Amit said: (Jan 5, 2020)  
DF = diluting water/sewage.

Anirban Roy said: (Nov 15, 2020)  
Nuisance is experienced if Dilution factor <20.

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