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本文论述了次高浊度水的概念、次高浊度水具有的从高浊度水到低浊度水的过渡性质等浓度面的沉速及其沉降曲线的测定原理;在等浓度面的概念和浑水动水沉淀浓缩规律的基础上,提出了等浓度型和沙峰型次高浊度水沉淀池的计算方法;文中介绍了生产试验情况,检验了次高浊度水沉淀池的计算理论,研究了沉淀池的出水水质变比与等浓度面高度的关系,以及沉淀池排泥作业制度,排泥流量和排泥浓度的变化特点等;文中根据生产试验成果,推荐了设计参数值,并作计算举例.
This paper discusses the concept of sub-high turbidity water, and the principle of measuring the sedimentation rate and sedimentation curve of sub-high turbidity water, such as the transition from high turbidity water to low turbidity water in sub-high turbidity water; Based on the concept and the law of sedimentation and concentration of drowning water, a calculation method for equal concentration and sand peak type secondary turbidity water sedimentation ponds was proposed; the production test situation was introduced and the calculation of the secondary high turbidity water sedimentation pond was examined. Theoretically, the relationship between the effluent water quality ratio of the sedimentation tank and the height of the isobaric surface was studied, as well as the sludge sedimentation operation system, the characteristics of the discharge flow rate and the discharge concentration, etc.; the design parameter values were recommended in the paper according to the production test results. , and make calculation examples.