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Deciphering the factors influencing the discrepant fate of antibiotic resistance genes in sludge and water phases during municipal wastewater treatment
Zhang, Junya; Yang, Min; Zhong, Hui; Liu, Mengmeng; Sui, Qianwen; Zheng, Libing; Tong, Juan; Wei, Yuansong
2018-10-01
Source PublicationBIORESOURCE TECHNOLOGY
ISSN0960-8524
Volume265Pages:310-319
SubtypeArticle
AbstractThe discrepant fate of antibiotic resistance genes (ARGs) in sludge and water phases was investigated in a municipal wastewater treatment plant, and a lab-scale A(2)O-MBR was operated to provide background value of ARGs. The influencing factors of ARGs including microbial community, co-selection from heavy metals, biomass and horizontal gene transfer were concerned. Results showed that i-A(2)O (inversed A(2)O) showed better ARGs reduction, and longer SRT (sludge retention time) increased ARGs relative abundance while reduced the gene copies of ARGs in the effluent, but significantly increased the ARGs in sludge phase. Compared to background value, the most enriched ARG was tetX in water phase, while it was intil in sludge phase. There existed higher abundance of multi-resistant bacteria in sludge phase, and microbial community determined the fate of ARGs in both water and sludge phase, while the direct effects from horizontal gene transfer should not be overlooked especially in water phase.
Department大气污染控制中心
KeywordAntibiotic resistance genes Anaerobic-anoxic-oxic Membrane bioreactor Municipal wastewater Microbial community
Document Type期刊论文
Identifierhttp://ir.rcees.ac.cn/handle/311016/40802
Collection大气污染控制中心
Recommended Citation
GB/T 7714
Zhang, Junya,Yang, Min,Zhong, Hui,et al. Deciphering the factors influencing the discrepant fate of antibiotic resistance genes in sludge and water phases during municipal wastewater treatment[J]. BIORESOURCE TECHNOLOGY,2018,265:310-319.
APA Zhang, Junya.,Yang, Min.,Zhong, Hui.,Liu, Mengmeng.,Sui, Qianwen.,...&Wei, Yuansong.(2018).Deciphering the factors influencing the discrepant fate of antibiotic resistance genes in sludge and water phases during municipal wastewater treatment.BIORESOURCE TECHNOLOGY,265,310-319.
MLA Zhang, Junya,et al."Deciphering the factors influencing the discrepant fate of antibiotic resistance genes in sludge and water phases during municipal wastewater treatment".BIORESOURCE TECHNOLOGY 265(2018):310-319.
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