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采用试验方法分别对封闭式与敞开式分离鳃沉淀池进行静水和动水的水沙分离沉降试验,发现两种沉淀池在静水沉淀时出水浊度随时间变化可分为浊度迅速减小阶段和浊度缓慢减小阶段;在动水沉降时,水力负荷对浊度变化有很大的影响,水力负荷愈小出水浊度值愈小,当水力负荷达到一定值时两种沉淀池里的分离鳃将失去作用,与普通沉淀池处理效果相同;但总体上封闭式分离鳃沉淀池的净水效果优于敞开式分离鳃沉淀池。
The test method was used to separate water and sediment of static and dynamic water from closed and open gill sedimentation tanks respectively. It was found that the turbidity of water from the two kinds of sedimentation tanks can be divided into two parts: And turbidity slowly reduce stage; hydrodynamic load has a great influence on the turbidity change when hydrodynamic settling, the smaller the hydraulic load is, the smaller the turbidity value is. When the hydraulic load reaches a certain value, Gill separation will be lost, and the same effect as the ordinary sedimentation tank; but generally closed gill sedimentation tank water purification effect is better than the open separation gill sedimentation tank.