State Key Laboratory of Organic Geochemistry, CAS Research Centre for Pearl River Delta Environment Pollution and Control, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China; The University of Chinese Academy of Sciences, Beijing 100049, China.
State Key Laboratory of Organic Geochemistry, CAS Research Centre for Pearl River Delta Environment Pollution and Control, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China.
Bioresour Technol. 2017 Aug;238:70-77. doi: 10.1016/j.biortech.2017.04.023. Epub 2017 Apr 9.
This study aimed to investigate the removal efficiency and mechanism for antibiotics in swine wastewater by a biological aerated filter system (BAF system) in combination with laboratory aerobic and anaerobic incubation experiments. Nine antibiotics including sulfamonomethoxine, sulfachloropyridazine, sulfamethazine, trimethoprim, norfloxacin, ofloxacin, lincomycin, leucomycin and oxytetracycline were detected in the wastewater with concentrations up to 192,000ng/L. The results from this pilot study showed efficient removals (>82%) of the conventional wastewater pollutants (BOD, COD, TN and NH-N) and the detected nine antibiotics by the BAF system. Laboratory simulation experiment showed first-order dissipation kinetics for the nine antibiotics in the wastewater under aerobic and anaerobic conditions. The biodegradation kinetic parameters successfully predicted the fate of the nine antibiotics in the BAF system. This suggests that biodegradation was the dominant process for antibiotic removal in the BAF system.
本研究旨在通过生物曝气滤池（BAF 系统）结合实验室好氧和厌氧孵育实验，研究抗生素在猪废水中的去除效率和机制。在废水中检测到 9 种抗生素，包括磺胺甲恶唑、磺胺氯哒嗪、磺胺甲嘧啶、甲氧苄啶、诺氟沙星、氧氟沙星、林可霉素、金霉素和土霉素，浓度高达 192,000ng/L。这项初步研究结果表明，BAF 系统能够有效去除（>82%）常规废水污染物（BOD、COD、TN 和 NH-N）和检测到的 9 种抗生素。实验室模拟实验表明，在好氧和厌氧条件下，废水中的 9 种抗生素符合一级耗散动力学。生物降解动力学参数成功预测了 9 种抗生素在 BAF 系统中的命运。这表明生物降解是 BAF 系统中抗生素去除的主要过程。
