Five representative water quality index are measured: the removal efficiency of NH3-N,T-P,COD,BOD5,and SS. The best sludge recycle ratio and aeration intensity of Shenyang Mantang River wastewater treatment plant were confirmed.

• 检测代表性的5个水质指标:氨氮(NH3-N)、总磷(T-P)、化学需氧量(COD)、生化需氧量(BOD5)、固体悬浮物(SS)的去除率；确定沈阳市满堂河污水处理厂最佳的污泥回流比与最佳曝气量.