Civil Engineering - Waste Water Engineering
Exercise : Waste Water Engineering - Section 2
26.
For a circular sewer of diameter D running partially full with central angle α,
all the above.
27.
For design purposes, the normal rate of infiltration of ground water into the sewer, is
28.
The effluent of a septic tank is
29.
The drainage area of a town is 12 hectares. Its 40% area is hard pavement (K = 0.85), the 40% area is unpaved streets (K = 0.20) and the remaining is wooded areas (K = 0.15). Assuming the time of concentration for the areas as 30 minutes and using the formula 
the maximum run off is
the maximum run off is30.
The detention period for plain sedimentation water tanks, is usually
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