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Waste Water Engineering

Waste Water Engineering
A rain sanitary sewer is constructed to carry

Storm sewage
Surface water
Ground water
Sanitary sewage

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Waste Water Engineering
If the discharge of a sewer running half is 628 1.p.s., i = 0.001, and n = 0.010, the diameter of the sewer, is

1.49 m
1.39 m
1.69 m
1.59 m

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Waste Water Engineering
Clogging of sewers, is caused due to

All of these
Silting
Low discharge
Greasy and oily matters

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Waste Water Engineering
The sewer which collects the discharge from a collecting system and delivers it to a treatment plant, is known

Sewer outfall
House sewer
Lateral sewer
Branch sewer

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Waste Water Engineering
In a sludge digestion tank if the moisture content of sludge V1 litres is reduced from p1 % to p2 % the volume V2 is

[(100 – P1)/(100 + P2)] V1
[(100 – P1)/(100 – P2)] V1
[(100 + P2)/(100 – P1)] V1
[(100 + P1)/(100 – P2)] V1

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Waste Water Engineering
15 cumecs, the depth d and width are related by For drains up to

B = 0.5 d
d = 0.5 B
d = 0.2 B
B = 0.2 d

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