设计多级两段A/O-MBR工艺以提高废水污染物去除率

Designing Multi-Stage 2 A/O-MBR Processes for a Higher Removal Rate of Pollution in Wastewater.

作者信息

Zhou Zhengzhong, Zhang Bin, Wang Qian, Meng Xiaoshan, Wu Qigang, Zheng Tao, Huhe Taoli

机构信息

National-Local Joint Engineering Research Center of Biomass Refining and High-Quality Utilization, Institute of Urban and Rural Mining, Changzhou University, Changzhou 213164, China.

Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, No. 2 Neng Yuan Road, Tianhe District, Guangzhou 510640, China.

出版信息

Membranes (Basel). 2022 Mar 30;12(4):377. doi: 10.3390/membranes12040377.

Multi-stage A/O-MBR processes were designed to improve wastewater treatment efficiency; three different designs were carried out and compared in this study. The 2(A/O)-MBR process, i.e., with two sets of anoxic/oxic tanks in series, showed better effluent quality than A/O-MBR and 3(A/O)-MBR processes. The removal rates of COD, NH4+-N, TP and TN were 95.29%, 89.47%, 83.55% and 78.58%, respectively, complying satisfactorily with China's urban sewage treatment plant pollutant discharge standards. In terms of membrane fouling, the 3(A/O)-MBR process demonstrated the lowest fouling propensity. The microbial community structure in each bioreaction tank was analyzed, the results from which matched with the process efficiency and fouling behavior.