[Utilities – Water Supply and Drainage Section] 20181111

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This post was last edited by hesonchang214 on 2021-4-25 at 15:27. The effective volume of the clear water tank in urban water treatment plants should be determined based on the plant’s water production curve, the water supply curve from the pump house, the amount of water used for internal purposes, as well as the amount of water required for fire suppression purposes; it must also meet the requirements regarding disinfection contact time. When there are no water volume regulation facilities in the pipeline network, and in the absence of relevant data, it can generally be calculated as () of the plant’s maximum daily designed water volume. a、5％——15％ b、10％——25％ c、10％——20％ d、15％——25％ Answer: c. In the absence of data, when there are no regulating facilities in the water distribution network, it is generally possible to calculate this value at 10%–20% of the plant’s maximum daily designed water output; larger water treatment plants may use a lower value.