文献类型：期刊文献

英文题名：Occurrence and removal of sulfonamide antibiotics and antibiotic resistance genes in conventional and advanced drinking water treatment processes

作者：Hu, Yaru[1];Jiang, Lei[2];Zhang, Tianyang[1,3];Jin, Lei[2];Han, Qi[1];Zhang, Dong[2];Lin, Kuangfei[1];Cui, Changzheng[1,3]

机构：[1]East China Univ Sci & Technol, Sch Resources & Environm Engn, State Environm Protect Key Lab Environm Risk Asse, Shanghai 200237, Peoples R China;[2]Natl Engn Res Ctr Urban Water Resources, Shanghai 200082, Peoples R China;[3]Shanghai Inst Pollut Control & Ecol Secur, Shanghai 200092, Peoples R China

年份：2018

卷号：360

起止页码：364

外文期刊名：JOURNAL OF HAZARDOUS MATERIALS

收录：;EI(收录号：20183405720857);WOS:【SCI-EXPANDED(收录号:WOS:000446144600041)】；

基金：This work was supported by the National Water Pollution Control and Management Technology Major Projects (No. 2017ZX07402003), Shanghai Municipal Science and Technology Commission (No. 16DZ1204703) and Open Project of State Key Laboratory of Urban Water Resource and Environment (No. QA201612), China Postdoctoral Science Foundation (No. 2017M621391), the Fundamental Research Funds for the Central Universities (No. 222201814055) and Shanghai Sailing Program (No. 18YF1406000).

语种：英文

外文关键词：Sulfonamides (SAs); Antibiotic resistance genes (ARGs); Drinking water treatment processes (DWTPs); Conventional and advanced processes, removal efficiency

摘要：Sulfonamides (SAs) and sul antibiotic resistance genes (ARGs) have been extensively detected in drinking water sources and warrant further studies on the removal of them in different drinking water treatment processes (DWTPs). The prevalence of 13 SAs, sul1, su12 and class I integrase gene intll in conventional and advanced processes was investigated using HPLC-MS/MS and real-time quantitative PCR (qPCR), respectively. The most abundant SA was sulfamethoxazole, with the maximum concentration of 67.27 ng/L. High concentration of sulfamethoxazole was also measured in finished water in both conventional (22.05 ng/L) and advanced (11.24 ng/L) processes. Overall, the removal efficiency of advanced process for each SA was higher than that of conventional process, except for sulfameter. The absolute concentrations of sul1, sul2 and intll in raw water ranged from L8 x 10(3) to 2.4 x 10(5) gene abundance/mL. After treatment, the residual sul ARGs and intil in finished water still remained at 10(2) - 10(4) gene abundance/mL. Conventional treatment units, including flocculation/sedimentation/sand filtration, played a more important role in removing sul1, sul2 and intll than oxidation (chlorination or ozonation) and granular activated carbon filtration treatments. Based on this work, more investigations are needed to help improve the removal of both antibiotics and ARGs in DWTPs.