Affiliations: State Key Laboratory of Pollution Control and Resource
Reuse,Tongji University, Shanghai, 200092, China, E-mail:[email protected]
Abstract: A practice wastewater treatment plant was operated usingintermittent
aeration activated sludge process to enhancebiological nitrogen and phosphorus
removal. When the influent concentrations of COD_Cr, BOD_5, TN, TP, NH_3-N,
TKN, and SS varied in a range of 207.5-1640 mg/L, 61.8-637 mg/L, 28.5-75.6
mg/L, 4.38-20.2 mg/L, 13.6-31.9 mg/L, 28.5-75.6 mg/L, and 111-1208 mg/L, the
effluent means were less than 50 mg/L, 20 mg/L, 5 mg/L, 1.0 mg/L,5 mg/L, 10
mg/L, and 20 mg/L, respectively. Based on a long time of operating results,
this process is very suitable for nutrient biological removal for treating the
municipal wastewater those water characteristics are similar as that of the
Songjiang Municipal Waste water Treatment plant( SJMWTP).
