The temperature affects the
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Civil Engineering · all questionsWaste Water Engineering
Waste Water Engineering
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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
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The sewage treatment in septic tanks is due to
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Which one of the following statements regarding septic tanks is wrong?
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If D.O. concentration falls down to zero in any natural drainage, it indicates the zone of
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The asbestos cement sewers are
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If D is the diameter of a circular sewer and D’ is the top horizontal diameter of an equivalent egg shaped section, the relationship which holds good, is
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D is the diameter of a circular sewer and is the side of a square section sewer. If both are hydraulically equivalent, the relationship which holds good, is
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For design of sewers, percentage of sewage discharge is assumed
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Nitrogen cycle of sewage, is
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Discrete or granular particles change their
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The suitable cross-section of sewers to carry combined flow, is
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Facultative bacteria survive in
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A nuisance is experienced in diluting water if dilution factor is less than
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The width of a settling tank with 2 hour detention period for treating sewage 378 cu m per hour, is
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If the side of a square sewer is 1000 mm, the diameter of a hydraulically equivalent circular section, is
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The drop man holes are generally provided in sewers for
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The flow velocity in detritus tanks is
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In normal conditions, the period for sludge digestion, is
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The first stage of neutral process of sludge digestion, is
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