中文摘要：

采用A／O同步脱氮除磷工艺处理模拟污水，调整DO、HRT、内回流、进水污染物的浓度等影响因素，考察了该工艺单位活性污泥处理污水中TN、TP的能力。结果表明，当好氧区DO控制在0．6mg／L左右，HRT控制在10h，内回流比控制在1：1时，单位活性污泥处理污水TN、TP的能力最强，单位活性污泥TN去除速率达到14×10^-3mg／（L·mg MLVSS·h），单位活性污泥TP去除速率达到0．14×10^-3mg／（L·mg MLVSS·h），AO系统实现了同步硝化反硝化和反硝化除磷。

英文摘要：

Using A/O simultaneous nitrogen and phosphorus removal process for treatment of simulated wastewater, adjusting the DO, HRT, return flow, inlet pollutant concentration and other factors, the process unit for wastewater treatment with activated sludge in TN, TP ability. The results show that, when the oxygen zone DO control in 0.6 mg/L, HRT control in 10 h, the inner reflux ratio control in 1：1, the unit activated sludge wastewater treatment in TN, TP capacity of the strongest, the unit activated sludge TN removal rate reached 1.4× 10^-3 mg/（L·mg MLVSS·h）, TP removal unit activated sludge rate reached 0.14× 10^-3 mg/（L·mg MLVSS·h）, AO system to achieve the simultaneous nitrification and denitrification and phosphorus removal.