Civil Engineering :: Waste Water Engineering
- In circular sewers if depth of flow is 0.2 times the full depth, the nominal gradient,
- The liquid wastes from kitchens, bath rooms and wash basins, is not called
- If the diameter of a sewer is 100 mm, the gradient required for generating self cleansing velocity is
- Self-cleansing velocity is
- In a city the ratio of the drainage to sewage is 20, the percentage discharge passing through non-monsoon periods, is
- For design purposes, the normal rate of infiltration of ground water into the sewer, is
- If the peak discharge of a storm water drain (S.W. Drain) is expected to exceed 150 cumecs, the free board to be provided, is
- In 1000 kg of sewage, the total solids approximate
- Pick up the incorrect statement from the following:
- Pick up the correct statement from the following:
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A.
The process of decomposing the organic matter under controlled anaerobic conditions, is called sludge digestion |
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B.
Sludge digestion is carried out in sludge tank |
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C.
The gases produced in sludge digestion process, contain 75% carbon dioxide |
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D.
The gases produced in sludge digestion process, contain 75% methane |