Daily Water Treatment Question (11.18)

2016-11-18View Original

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Multiple-choice questions (2 in total) 1. During the flocculation and sedimentation process, for certain particles, different water depths result in varying sedimentation efficiencies; as the water depth increases, the sedimentation efficiency also increases. If the water depth is doubled, the sedimentation time ( ). A. Double the amount B. No need to double it C. Increase by 10 times D. Reduce by half 2. ( ) It is mainly through the crowding together of particles and their automatic compression that the concentration of suspended solids in wastewater increases further. A. Flocculation sedimentation B. Free sedimentation C. Clustered sedimentation D. Compression sedimentation B;D

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Daily Water Treatment Question (11.18)

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