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Biofiltration and disinfection codetermine the bacterial antibiotic resistome in drinking water:A review and meta-analysis

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Frontiers of Environmental science & Engineering 2020年第1期14卷 23-34页

作者： kun Wan Wenfang Lin Shuai Zhu Shenghua Zhang Xin Yu key Laboratory of Urban Environment and Health.Institute of Urban Environment Chinese Academy of SciencesXiamen 361021China University of chinese Academy of sciences Beijing 100049China Beijing Guohuan Tsinghua Environmental Engineering Design&Research Institute co. Ltd.Beijing 100084China

The bacterial antibiotic resistome(BAR)is one of the most serious contemporary medical *** BAR problem in drinking water is receiving growing *** this study,we focused on the distribution,changes,and health risks of the BAR throughout the drinking water treatment *** extracted the antibiotic resistance gene(ARG)data from recent publications and analyzed ARG profiles based on diversity,absolute abundance,and relative *** absolute abundance of ARG was found to decrease with water treatment processes and was positively correlated with the abundance of 16S rRNA(r=0.963,/?cating that the reduction of ARG concentration was accompanied by decreasing *** treatment processes,biofiltration and chlorination were discovered to play important roles in shaping the bacterial antibiotic *** exhibited positive effects in controlling the diversity of ARG,while biofiltration,especially granular activated carbon filtration,increased the diversity of *** biofiltration and chlorination altered the structure of the resistome by affecting relative ARG *** addition,we analyzed the mechanism behind the impact of biofiltration and chlorination on the bacterial antibiotic *** intercepting influent ARG-carrying bacteria,biofilters can enrich various ARGs and maintain ARGs in *** further selects bacteria co-resistant to chlorine and ***,we proposed the BAR health risks caused by biofiltration and chlorination in water *** reduce potential BAR risk in drinking water,membrane filtration technology and water boiling are recommended at the point of use.

关键词： Drinking water treatment Antibiotic resistance gene Biofiltration chlorination

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