Waste Water Engineering
The sewage discharge in a detritus tank of a treatment plant is 576 litres/sec with flow velocity of 0.2 m/sec. If the ratio of width to depth is 2, the depth is

150 cm
100 cm
110 cm
120 cm

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Waste Water Engineering
For treating the sewage of a large city, you will recommend

A sedimentation tank and an activated sludge treatment plant
None of these
Sedimentation tanks with high rate trickling filters
A plant consisting of Imhoff tanks with low rate trickling filters

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