研究了UASB工艺处理城市生活污水的可行性，通过UASB与SBR组合工艺的运行实验,得出在水力停留时间3 h时，COD去除率为61.67%￣82.32%,出水COD达到国家污水排放二级标准。在氮磷去除效果不佳的情况下，采用SBR工艺处理后,其出水COD、SS、氮、磷等指标均达到国家污水一级排放标准。

The feasibility to treat domestic sewage by using UASB process is researched. The result shows that the removal of COD reaches 61.67%- 82.32% in conformity with Second Grade of the National Standard for Wastewater Discharge. When the N， P removal efficiency is not good， SBR process is used to make COD，SS，N，P reach the First Grade of the National Standard for Wastewater Discharge.