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Seasonal variation and removal efficiency of antibiotic resistance genes during wastewater treatment of swine farms
Sui, Qianwen; Zhang, Junya; Tong, Juan; Chen, Meixue; Wei, Yuansong
2017-04-01
Source PublicationENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
Volume24Issue:10Pages:9048-9057
AbstractThe seasonal variation and removal efficiency of antibiotic resistance genes (ARGs), including tetracycline resistance genes (tetG, tetM, and tetX) and macrolide (ermB, ermF, ereA, and mefA), were investigated in two typical swine wastewater treatment systems in both winter and summer. ARGs, class 1 integron gene, and 16S rRNA gene were quantified using real-time polymerase chain reaction assays. There was a 0.31-3.52 log variation in ARGs in raw swine wastewater, and the abundance of ARGs in winter was higher than in summer. tetM, tetX, ermB, ermF, and mefA were highly abundant. The abundance of ARGs was effectively reduced by most individual treatment process and the removal efficiencies of ARGs were higher in winter than in summer. However, when examining relative abundance, the fate of ARGs was quite variable. Anaerobic digestion reduced the relative abundance of tetX, ermB, ermF, and mefA, while lagoon treatment decreased tetM, ermB, ermF, and mefA. Sequencing batch reactor (SBR) decreased tetM, ermB, and ermF, but biofilters and wetlands did not display consistent removal efficiency on ARGs in two sampling seasons. As far as the entire treatment system is concerned, ermB and mefA were effectively reduced in both winter and summer in both total and relative abundance. The relative abundances of tetG and ereA were significantly correlated with intI1 (p<0.01), and both tetG and ereA increased after wastewater treatment. This may pose a great threat to public health.
Department大气污染控制中心
KeywordAntibiotic Resistance Genes Swine Wastewater Biological Wastewater Treatment Class 1 Integron Antibiotic Resistant Bacteria Real-time Polymerase Chain Reaction
Document Type期刊论文
Identifierhttp://ir.rcees.ac.cn/handle/311016/39210
Collection大气污染控制中心
Recommended Citation
GB/T 7714
Sui, Qianwen,Zhang, Junya,Tong, Juan,et al. Seasonal variation and removal efficiency of antibiotic resistance genes during wastewater treatment of swine farms[J]. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,2017,24(10):9048-9057.
APA Sui, Qianwen,Zhang, Junya,Tong, Juan,Chen, Meixue,&Wei, Yuansong.(2017).Seasonal variation and removal efficiency of antibiotic resistance genes during wastewater treatment of swine farms.ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,24(10),9048-9057.
MLA Sui, Qianwen,et al."Seasonal variation and removal efficiency of antibiotic resistance genes during wastewater treatment of swine farms".ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH 24.10(2017):9048-9057.
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