Sludge bio-drying followed by land application could control the spread of antibiotic resistance genes

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 followed by land application could control the spread of antibiotic resistance genes
	Zhang, Junya ; Sui, Qianwen ; Lu, Tiedong ; Zhong, Hui ; Shen, Peihong ; Wei, Yuansong
刊名	ENVIRONMENT INTERNATIONAL
	2019-09-01
卷号	130 页码:-
关键词	Bio-drying Sewage sludge Antibiotic resistance genes Land application Soil types
ISSN号	0160-4120
英文摘要	The process of sludge bio-drying has been adopted in response to the increasing amount of residual sewage sludge. It has been demonstrated that sludge bio-drying effectively reduces both antibiotic resistance genes (ARGs) and mobile genetic elements (MGEs), whereas ermF, tetX, and sulII become enriched in response to the dynamic development of the microbial community. The present study further demonstrated that the land application of sludge bio-drying products under current application rate did not cause an increase in the abundance of quantified ARGs in the soil but the persistence of ARB should be paid attention. Although land application introduced ermF, tetX, and tetG into the soil, these soon decreased to control levels. Furthermore, the decay rate varied between soil types, with red soil being the most persistent based on kinetics modeling. The fate of ARGs could also be attributed to the dynamics of the microbial community during land application, and the genus Parasegetibacter, which can degrade extracellular DNA, might play a key role in the control of ARGs. In summary, sludge bio-drying following land application could constitute an effective means of controlling the spread of ARGs, and microbial community changes contributed the most to the fate of the ARGs during the entire treatment chain (residual sewage sludge -> bio-drying process -> land application).
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/43280]
专题	生态环境研究中心_水污染控制实验室
作者单位	1.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Joint Lab Environm Simulat & Pollut Con, Beijing 100085, Peoples R China 2.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, Dept Water Pollut Control Technol, Beijing 100085, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Junya,Sui, Qianwen,Lu, Tiedong,et al. Sludge bio-drying followed by land application could control the spread of antibiotic resistance genes[J]. ENVIRONMENT INTERNATIONAL,2019,130:-.
APA	Zhang, Junya,Sui, Qianwen,Lu, Tiedong,Zhong, Hui,Shen, Peihong,&Wei, Yuansong.(2019).Sludge bio-drying followed by land application could control the spread of antibiotic resistance genes.ENVIRONMENT INTERNATIONAL,130,-.
MLA	Zhang, Junya,et al."Sludge bio-drying followed by land application could control the spread of antibiotic resistance genes".ENVIRONMENT INTERNATIONAL 130(2019):-.