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Question
A sewage has a suspended solid contents as 250 mg/litre. The sedimentation tank removes 55% of the suspended solids and the water content of the sludge is 95%. What is the quantity of sludge produced after treating 6.5 × 106 litres of sewage? (Assume the specific gravity of sludge as 1.0)
A.
11.875 cu.m
B.
14.275 cu.m
C.
17.875 cu.m
D.
20.275 cu.m
Answer ( Option C)

17.875 cu.m

Solution

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