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Distribution of antibiotic resistance genes (ARGs) in anaerobic digestion and land application of swine wastewater
Sui, Qianwen; Zhang, Junya; Chen, Meixue; Tong, Juan; Wang, Rui; Wei, Yuansong
2016-06
Source PublicationENVIRONMENTAL POLLUTION
Volume213Issue:0Pages:751-759
AbstractSwine farm and the adjacent farmland are hot spots of ARGs. However, few studies have investigated the on-site occurrence of ARGs distributed in the process of anaerobic digestion (AD) followed by land application of swine wastewater. Two typical swine farms, in southern and northern China respectively, with AD along with land application were explored on ARG distributions. ARGs were highly abundant in raw swine wastewater, AD effectively reduced the copy number of all detected ARGs (0.21-1.34 logs removal), but the relative abundance with different resistance mechanisms showed distinctive variation trends. The reduction efficiency of ARGs was improved by stable operational temperature and longer solid retention time (SRT) of AD. ARGs in soil characterized the contamination from the irrigation of the digested liquor. The total ARGs quantity in soil fell down by 1.66 logs in idle period of winter compared to application period of summer in the northern region, whereas the total amount was steady with whole year application in south. Some persistent (sul1 and sul2) and elevated ARGs (tetG and ereA) in AD and land application need more attention. (C) 2016 Elsevier Ltd. All rights reserved.
Department大气污染控制中心
KeywordAntibiotic Resistance Gene Swine Wastewater Anaerobic Digestion Land Application Real-time Polymerase Chain Reaction
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Document Type期刊论文
Identifierhttps://ir.rcees.ac.cn/handle/311016/35742
Collection大气环境与污染控制实验室
Recommended Citation
GB/T 7714
Sui, Qianwen,Zhang, Junya,Chen, Meixue,et al. Distribution of antibiotic resistance genes (ARGs) in anaerobic digestion and land application of swine wastewater[J]. ENVIRONMENTAL POLLUTION,2016,213(0):751-759.
APA Sui, Qianwen,Zhang, Junya,Chen, Meixue,Tong, Juan,Wang, Rui,&Wei, Yuansong.(2016).Distribution of antibiotic resistance genes (ARGs) in anaerobic digestion and land application of swine wastewater.ENVIRONMENTAL POLLUTION,213(0),751-759.
MLA Sui, Qianwen,et al."Distribution of antibiotic resistance genes (ARGs) in anaerobic digestion and land application of swine wastewater".ENVIRONMENTAL POLLUTION 213.0(2016):751-759.
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