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为了满足高效节水面积快速发展的需要,地表水将逐步取代地下水作为主要供水水源,地表水需要解决泥沙处理问题。河水滴灌重力沉沙过滤池是新近发明的一种沉沙池,该系统利用沉淀池和过滤网的有机结合进行除沙和清除水中杂质。通过物理模型试验,对重力沉沙过滤池中各部位的水深、流速、含沙量、泥沙粒径等进行测试分析,得到了沉沙池中泥沙分布规律和除沙效率,系统总的除沙效率达到54%以上,其中过滤网除沙效率为8%左右。虽然过滤网除沙效率有限,但其处理水中杂质效果明显。综合试验成果得到了给定流量下的重力沉沙过滤池最优结构尺寸。通过模型试验对已建工程提出了结构优化建议。
In order to meet the needs of rapid development of efficient water-saving area, surface water will gradually replace groundwater as the main source of water supply, and surface water needs to solve the problem of sediment disposal. River drip irrigation gravity sedimentation sand filter tank is a recently invented a settling basin, the system uses a combination of sedimentation tank and filter to remove sand and remove water impurities. Through the physical model test, the sediment distribution law and sand removal efficiency of the sediment basin were tested and analyzed for the depth, flow velocity, sediment concentration and sediment particle size of each part in the gravity sedimentation filter pool. The total system In addition to sand efficiency of more than 54%, of which filter efficiency of about 8% sand. Although the filter efficiency of sand removal is limited, but its obvious effect on the treatment of impurities in water. The results of the comprehensive experiment obtained the optimal structure size of the gravity settling filter tank under a given flow rate. Through the model test on the construction of the proposed structural optimization proposals.