采用曝气生物滤池-气浮-砂滤工艺处理电厂综合废水，其出水补至电厂循环冷却水系统。实际运行结果表明，该工艺处理效率高，运行稳定，出水浊度≤1NTU，CODMn≤5mgL，氨氮≤2mgL，异养菌≤1000mL-1，达到电厂循环水补水水质要求。此外还对工程设计及运行中的经验进行了讨论。

A biological aerated filter-air flotation-sand filter process has been adopted to treat power plant wastewater.The effluent has been used as make-up water to the circulating water system.The practical operation result shows that the process has high efficiency and stability.Using this process,an effluent with turbidity ≤1 NTU,CODMn ≤5 mg /L,NH3-N ≤2 mg /L and bacteria number ≤1 000 mL-1 has been obtained.This meets the make-up water standard of circulating water systems.the experience obtained from project design and operation has been discussed.