高浊度来流下新型双层平流沉淀池沉降效果研究

New Type of Double-deck Horizontal Flow Sedimentation Tank Basin Is Studied for the Effect of High Turbidity

针对传统平流沉淀池对高浊度来流处理效果不理想这一问题,开展了新型双层平流沉淀池在高浊度来水下的沉降效果研究。研究设计三个沉淀池模型:下向流斜板构造双层平流沉淀池(模型A)、上向流斜板构造双层平流沉淀池(模型B)以及串联式双层平流沉淀池(模型C),通过对3个沉淀池模型在高浊度来流下开展未添加絮凝剂与添加絮凝剂的对比试验,分析新型双层平流沉淀池与现有的串联式双层平流沉淀池对高浊度来流的沉降效果,对3个沉淀池的沉降效果进行分析发现3个沉淀池中下向流斜板构造双层平流沉淀池沉降效果最好。目前关于双层平流沉淀池的模型试验研究资料较少,通过理论分析与模型试验为新型双层平流沉淀池在高浊度来流地区的使用提供理论基础。

To solve the problem of the low efficiency of the traditional horizontal sedimentation tank,this paper carries out a research on the settlement effect of a new type of double-deck horizontal flow sedimentation tank in the water of high turbidity. This study has designed three tank models ： to flow inclined plate structure under double-deck horizontal flow sedimentation tank（Model A）,to the flow on the inclined plate tectonic double-deck horizontal flow sedimentation tank（Model B） and tandem double-deck horizontal flow sedimentation tank（Model C）,based on the three tank models in high turbidity to shed not adding flocculants compared with adding flocculants experiment,an analysis is made of the new double-decker advection sedimentation tank with existing tandem double-deck horizontal flow sedimentation tank for high turbidity flow sedimentation effect. At present,there is little information about double-deck horizontal flow sedimentation tank model test research in this paper. A theoretical analysis and a model test for the new double-deck horizontal flow sedimentation tank are based on the use of high turbidity to flow region.