Sludge bio-drying: Effective to reduce both antibiotic resistance genes and mobile genetic elements

doi:10.1016/j.watres.2016.09.055

CORC > 生态环境研究中心 > 中国科学院生态环境研究中心 > 水污染控制实验室

	Sludge bio-drying: Effective to reduce both antibiotic resistance genes and mobile genetic elements
	Wei, Yuansong; Sui, Qianwen; Tong, Juan; Buhe, Chulu; Wang, Rui; Chen, Meixue; Zhang, Junya
刊名	WATER RESEARCH
	2016-12-01
卷号	106 期号:0 页码:62-70
关键词	Sludge Bio-drying Antibiotic Resistance Genes Aeration Strategy Mobile Genetic Elements
DOI	10.1016/j.watres.2016.09.055
英文摘要	Sewage sludge is considered as one of major contributors to the increased environmental burden of ARGs. Sludge bio-drying was increasingly adopted due to its faster sludge reduction compared with composting. The fate of ARGs during full-scale sludge bio-drying was investigated to determine whether it could effectively reduce ARGs, and the contributions of bacterial community, horizontal gene transfer (HGT) through mobile genetic elements (MGEs) and co-selection from heavy metals to ARGs profiles were discussed in detail. Two piles with different aeration strategies (Pile I, the improved and Pile II, the control) were operated to elucidate effects of aeration strategy on ARGs profiles. Results showed that sludge bio-drying could effectively reduce both most of targeted ARGs (0.4-3.1 logs) and MGEs (0.8-3.3 logs) by the improved aeration strategy, which also enhanced both the sludge bio-drying performance and ARGs reduction. The enrichment of ARGs including ermF, tetX and sulII could be well explained by the evolution of bioavailable heavy metals, not HGT through MGEs, and their potential host bacteria mainly existed in Bacteroidetes. Although changes of bacterial community contributed the most to ARGs profiles, HGT through MGEs should be paid more attention especially in the thermophilic stage of sludge bio-drying. (C) 2016 Elsevier Ltd. All rights reserved.
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/36238]
专题	生态环境研究中心_水污染控制实验室
推荐引用方式 GB/T 7714	Wei, Yuansong,Sui, Qianwen,Tong, Juan,et al. Sludge bio-drying: Effective to reduce both antibiotic resistance genes and mobile genetic elements[J]. WATER RESEARCH,2016,106(0):62-70.
APA	Wei, Yuansong.,Sui, Qianwen.,Tong, Juan.,Buhe, Chulu.,Wang, Rui.,...&Zhang, Junya.(2016).Sludge bio-drying: Effective to reduce both antibiotic resistance genes and mobile genetic elements.WATER RESEARCH,106(0),62-70.
MLA	Wei, Yuansong,et al."Sludge bio-drying: Effective to reduce both antibiotic resistance genes and mobile genetic elements".WATER RESEARCH 106.0(2016):62-70.