Effects of different carbon sources on the removal of ciprofloxacin and pollutants by activated sludge:Mechanism and biodegradation

作     者：Yixiang Cai Zhiyong Yan Yingjuan Ou Boshang Peng Lihua Zhang Jihai Shao Yiqing Lin Jiachao Zhang Yixiang Cai;Zhiyong Yan;Yingjuan Ou;Boshang Peng;Lihua Zhang;Jihai Shao;Yiqing Lin;Jiachao Zhang

作者机构：Hunan International Scientific and Technological Cooperation Base of Agricultural Typical Pollution Remediation and Wetland ProtectionHunan Agricultural UniversityChangsha 410028China 

出 版 物：《Journal of Environmental Sciences》 (环境科学学报（英文版）)

年 卷 期：2022年第34卷第1期

页      面：240-248页

核心收录：

学科分类：083002[工学-环境工程] 0830[工学-环境科学与工程（可授工学、理学、农学学位）] 08[工学] 

基　　金：jointly supported by the Key R&D Project of Hunan Province(No.2018WK4007) the National Natural Science Foundation of China(No.51879105) 

主　　题：Ciprofloxacin Microbial community Sequencing batch reactor Carbon source Biodegradation pathway 

摘      要：This research investigated the effects of ciprofloxacin(CIP)(0.5,5,and 20 mg/L)on SBR systems under different carbon source *** community abundance and structure were determined by quantitative PCR and high-throughput sequencing,*** biodegradation production of CIP and possible degradation mechanism were also *** showed that CIP had adverse effects on the nutrient removal from *** with sodium acetate,glucose could be more effectively used by microorganisms,thus eliminating the negative effects of *** stimulated the microbial abundance and increased the removal rate of CIP by 18%–24%.The mechanism research indicated that Proteobacteria and Acidobacteria had a high tolerance for *** sodium acetate as a carbon source,the abundance of nitrite-oxidizing bacterial communities decreased under CIP,resulting in the accumulation of nitrite and *** and Microbacterium played a major role in nitrification and denitrification when using sodium acetate and glucose as carbon *** and Microbacterium played positive roles in the degradation process of CIP and eliminated the negative effect of CIP on SBR,which was consistent with the improved removal efficiency of pollutants.