摘要

       实验室规模的缺氧/好氧膜生物反应器被设计用于处理含有不同抗生素浓度（每种抗生素分别为 0.5mg/L、1mg/L 和 3mg/L）的抗生素废水。在暴露于抗生素期间，总体 COD 和 NH4+单键 N 去除率（超过 90%）没有受到影响，也实现了良好的 TN 去除率，而 TP 去除率受到显着影响。强水解对青霉素和氯四环素的最大去除率分别达到97.15%和96.10%，生物降解磺胺甲恶唑达到90.07%。然而，63.87% 的诺氟沙星最大去除效率主要是通过吸附实现的。该系统具有良好的减少 ARGs 的能力，峰值达到 4 个数量级以上，这主要取决于膜组件的生物量保留。抗生素浓度影响反应器中 ARG 和细菌群落的进化。该研究为使用 A/O-MBR 减少含抗生素废水中的 ARG 和抗生素提供了重要意义。

       Laboratory-scale anoxic/aerobic membrane bioreactors are designed to treat antibiotic wastewater containing different antibiotic concentrations (0.5mg/L, 1mg/L and 3mg/L for each antibiotic). During the exposure to antibiotics, the overall COD and NH4+ single bond N removal rate (over 90%) was not affected, and a good TN removal rate was also achieved, while the TP removal rate was significantly affected. The maximum removal rate of penicillin and chlorotetracycline by strong hydrolysis reached 97.15% and 96.10%, respectively, and the biodegradable sulfamethoxazole reached 90.07%. However, 63.87% of the maximum removal efficiency of norfloxacin is mainly achieved by adsorption. The system has a good ability to reduce ARGs, with a peak value of more than 4 orders of magnitude, which mainly depends on the biomass retention of the membrane module. The antibiotic concentration affects the evolution of ARG and bacterial communities in the reactor. This research provides important significance for the use of A/O-MBR to reduce ARG and antibiotics in antibiotic-containing wastewater. 

https://www.sciencedirect.com/science/article/abs/pii/S0045653518300766