Easy
1 point
ID: #15283
Question
Sewage is not treated when the dilution factor is -
Options
1
less than 150
Correct Answer
2
between 150 and 200
Correct Answer
3
between 200 and 400
Correct Answer
4
more than 500
Correct Answer
Explanation
When the dilution factor is very high (typically above 500), the natural self-purification capacity of the water body is sufficient to handle the sewage without prior treatment.