The rate of accumulation of sludge per person per year, is
A. 10 litres
B. 15 litres
C. 20 litres
D. 25 litres
Answer: Option C
This Question Belongs to Civil Engineering >> Waste Water Engineering
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Related Questions on Waste Water Engineering
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C. As good as that from a complete treatment
D. None of these
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Sludge accumulation = 0.08 kg / person / day
Density of sludge = 1400 kg/m3
Calculation:
hance
= 0.08 × 365 kg/person/day
= 29.2 kg / person / day
Density of sludge = 1400 kg/m3
= 29.2 × ( 1000/1400 )
Rate of accumulation of sludge = 20.85 litre / person / year ≈ 20 liter / person / year