[Objective] The research aimed to study application of UNITANK process in municipal sewage treatment.[Method] One municipal sewage treatment plant in Fengjie County of Chongqiong as case,running effect of UNITANK process was analyzed,and influence of the flow capacity on treatment effect was discussed.[Result] UNITANK process could remove 91.0％-98.6％ of NH3-N,87.4％-92.8％ of COD,62.0％-75.9％ of TN and 75.4％-84.8％ of TP.Effluent satisfied the first class discharge standard (GB 18918-2002).TN and TP reached the first class B discharge standard,while NH3-N and COD reached the first class A discharge standard.Higher production load could improve removal efficiency of UNITANK process well and decline treatment cost.[Conclusion] UNITANK process had good treatment effect,especially had good removal ability on NH3-N and COD.%[目的]研究UNITANK工艺在城市生活污水处理中的运用.[方法]以重庆市奉节县某城市污水厂为例,分析了UNITANK工艺的运行效果,并在此基础上探讨了处理量对处理效果的影响.[结果] UNITANK工艺可以去除91.0％ ～ 98.6％的NH3-N,87.4％～92.8％的COD,62.0％ ～ 75.9％的TN以及75.4％ ～84.8％的TP.出水满足一级排放标准(GB 18918-2002),其中TN、TP为一级B类排放标准,NH3-N和COD达一级A类标准.较高的生产负荷可更好地发挥UNITANK工艺的除污效能和降低处理成本.[结论]UNITANK工艺的处理效果良好,特别是良好的NH3-N和COD去除能力.
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