以含氮磷的模拟生活污水为处理对象，对自行设计的推流、折流与完全混合流的组合流动反应器进行启动试验研究。试验分为两个部分，首先对普通活性污泥进行驯化培养，然后将驯化好的活性污泥移到组合流反应器内，加入污水进行连续启动运行。试验连续运行30d，结果表明在启动运行后期，COD、TP、氨氮的去除率分别达85％、80％及70％以上，好氧区硝态氮的累积率稳定在28mg／L，说明组合流反应器启动成功。“,”The start-up of a self-designed sewage reactor with compound pattern of plug flow, baffled flow and mixed flow is experimentally studied by treating a artificial sewage containing nitrogen and phosphorus. The research consists of two steps： firstly a common activated sludge is acclimated, and then the acclimated sludge and sewage are put into the reactor to do startup the experiment. Within a continuous running for 30 d the results show that in the late period of start-up operation the removal rates of COD, TP, NH4 - N are 85% , 80% and 70% respectively, and the NO3- N is accumulated to 28 mg/L, indicating that the start-up of the reactou is seccessful.