[简答题,10分] 机械搅拌澄清池运行中为什么要维持一定量的泥渣循环量？如何维持？试题答案

本题添加时间：2023/4/3 12:59:00
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[简答题,10分] 机械搅拌澄清池运行中为什么要维持一定量的泥渣循环量？如何维持？
答案是:参考答案：答：澄清池运行中，水和凝聚剂进入混合区后，将形成絮凝物，循环的泥渣和絮凝物不断的接触，以促进絮凝物长大，从而沉降，达到分离的目的。一般通过澄清池的调整实验，确定澄清池运行参数，与回流比一般为1：3，定时进行底部排污。当澄清池运行工况发生变化时，还应根据出水情况，决定排污。出自河南城建学院给水排水管网系统联大系统河南城建学院
更多试题>>>> 1、__________ when she started complaining. A.Not until had he arrived B.No sooner had he arrived C.Hardly had he arrive 2、The _______ of human knowledge are being pushed further. A.boundaries B.limits C.borders D.edges 3、Being in no great hurry, _____________. A.we went the long route with scenery B.the long, scenic route was our prefere 4、You ________ him about this since he could find out for himself. A.needn.t tell B.need tell C. need have told D.need 5、He ________ the door and ripped the top part of some sort of hinge. A.pulled on B.pulled up C.pulled out D.pulled do

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