Abstract:In order to reduce energy consumption and delay the process of membrane fouling, the process of anaerobic baffled reactor (ABR) -membrane bioreactor (MBR) was used to treat domestic sewage. The conditions of nitrogen and phosphorus removal and membrane fouling were optimized through intermittent aeration and particulate media in this study. The results show that the efficiencies of nitrogen and phosphorus removal were improved by increasing the intermittent aeration time. As mean while, the process achieved a high level of COD, NH4+-N, TN and TP removal, with the average removal efficiencies of 91%, 95%, 84% and 92% (run 4), respectively. And the added particulate media would not significantly affect the efficiencies of nitrogen and phosphorus removal. The double aerobic-anoxic alternating environment strengthened phosphorus removal of the process. In addition, the added particulate media could more effectively delay membrane fouling than intermittent aeration, while the formation process of membrane fouling was changed. The extracted amount of membrane fouling material significantly increased. Compared with cake layer, carbohydrate became the main factors of membrane fouling. However, it would not pose a hazard to membrane. Finally, the potential was enhanced for the practical application of MBR.
吴鹏, 陆爽君, 徐乐中, 刘捷, 沈耀良. ABR耦合间歇曝气MBR工艺处理生活污水研究[J]. 中国环境科学, 2015, 35(9): 2658-2663.
WU Peng, LU Shuang-Jun, XU Le-Zhong, LIU Jie, SHEN Yao-Liang. Nutrient removal from domestic sewage with coupled process of ABR and intermittent aeration MBR. CHINA ENVIRONMENTAL SCIENCECE, 2015, 35(9): 2658-2663.