摘要

实验室规模的缺氧/氧化膜生物反应器设计用于在不同抗生素浓度（0.5mg / L，1mg / L和每种抗生素3mg / L）下处理含有废水的抗生素。在接触抗生素期间，总体COD和NH4 + N去除（超过90％）不受影响，并且还实现了良好的TN去除，而TP去除受到显着影响。青霉素和氯四环素的最大去除率由于强烈的水解作用分别达到97.15％和96.10％，磺胺甲恶唑的生物降解达到90.07％。然而，诺氟沙星最大去除效率的63.87％主要通过吸附实现。该系统具有很好的降低ARG的能力，达到4个数量级以上，主要依赖于膜组件的生物量保留。抗生素浓度影响反应器中ARG和细菌群落的演变。这项研究为使用A / O-MBR减少含有抗生素的废水中的ARG和抗生素提供了很大的意义。

A lab-scale anoxic/oxic-membrane bioreactor was designed to treat antibiotics containingwastewater at different antibiotics concentrations (0.5 mg/L, 1 mg/L and 3 mg/L of each antibiotic). Overall COD and NH4+N removal (more than 90%) were not affected during the exposure to antibiotics and good TN removal was also achieved, while TP removal was significantly affected. The maximum removal efficiency of penicillin and chlorotetracycline reached 97.15% and 96.10% respectively due to strong hydrolysis, and sulfamethoxazole reached 90.07% by biodegradation. However, 63.87% of norfloxacin maximum removal efficiency was achieved mainly by sorption. The system had good ability to reduce ARGs, peaking to more than 4 orders of magnitude, which mainly depended on the biomassretaining of the membrane module. Antibiotics concentration influenced the evolution of ARGs and bacterial communities in the reactor. This research provides great implication to reduce ARGs and antibiotics in antibiotics containing wastewater using A/O-MBR.

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