【摘要】 根据深圳市罗芳污水处理厂的中试结果,探讨高浓度活性污泥法对二沉池的要求。按照澄清功能对污泥沉降速度进行分析,以浓缩功能对活性污泥固体通量进行判断,结果表明,工程设计中应适当降低二沉池表面水力负荷和提高污泥回流比。同时,根据不同的污泥沉降性能,得出了具体的能够稳定维持系统高浓度活性污泥的设计参数。更多还原

【Abstract】 In this paper,based on the results of pilot test of Shenzhen Luofang Wastewater Treatment Plant,the requirements of high concentration activated ary sludge process on second clarifier was discussed.The impacts of sludge settling rate on clarifying effects and the impacts of activated sludge solid flux on condensing effects were analyzed.The results showed that decreasing secondary clarifier surface hydraulic load properly and improving sludge reflux ratio should be conducted in project design.Meanwhile,according to the different sludge steeling characteristics,this study also got the detalied design parameters stabilize and maintain high concentration activated sludge in the system.更多还原