Biodegradation of triclosan and triclocarban in sewage sludge during composting under three ventilation strategies

doi:10.1007/s11783-019-1125-4

	Biodegradation of triclosan and triclocarban in sewage sludge during composting under three ventilation strategies
	Yu, Bao 1,2; Zheng, Guodi 1,2; Wang, Xuedong 3; Wang, Min 1,3; Chen, Tongbin 1,2
刊名	FRONTIERS OF ENVIRONMENTAL SCIENCE & ENGINEERING
	2019-06-01
卷号	13 期号:3 页码:10
关键词	Sewage sludge Compost Triclosan Triclocarban Ventilation Risk assessment
ISSN号	2095-2201
DOI	10.1007/s11783-019-1125-4
通讯作者	Zheng, Guodi(zhenggd@igsnrr.ac.cn)
英文摘要	Triclosan (TCS) and triclocarban (TCC) are widely used in home and personal care products as antimicrobial agents. After these products are used, TCS and TCC enter the terrestrial environment and pose a great risk to humans and animals. In this research, the biodegradation of TCS and TCC was investigated during sewage sludge composting with ventilation rates of 108, 92, and 79 m(3)/min. TCS and TCC were mainly biodegraded in the mesophilic and thermophilic phases, and the biodegradation rates improved with an increase in ventilation. After sewage sludge was composted for 16 days with forced ventilation (108 m(3)/min), the concentration of TCS decreased from 497.4 to 214.5 mu g/kg, and the concentration of TCC decreased from 823.2 to 172.7 mu g/kg. The biodegradation rates of TCS and TCC were 65.2% and 83.1%, respectively. However, after the sewage sludge was stacked for 16 days, the biodegradation rates of TCS and TCC were only 17.0% and 18.2%, respectively. The environmental risks of TCS and TCC in the sewage sludge piles significantly decreased after composting. In the sludge pile with a ventilation rate of 108 m(3)/min, the RQ values of TCS and TCC decreased from 8.29 and 20.58 to 3.58 and 4.32 after composting for 16 days, respectively. There is still a high risk if the sludge compost is directly used as a culture substrate. Nevertheless, the environmental risk could be decreased distinctly if a reasonable quantity of sludge compost is applied to land to ensure an RQ of < 1 for TCS and TCC
资助项目	National Natural Science Foundation of China[41371455] ; National Natural Science Foundation of China[41101463]
WOS关键词	PERSONAL CARE PRODUCTS ; MUNICIPAL SOLID-WASTE ; ORGANIC FRACTION ; RISK-ASSESSMENT ; WATER ; DEGRADATION ; SOIL ; BIOSOLIDS ; TRANSFORMATION ; PHARMACEUTICALS
WOS研究方向	Engineering ; Environmental Sciences & Ecology
语种	英语
出版者	HIGHER EDUCATION PRESS
WOS记录号	WOS:000471267000002
资助机构	National Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/58924]
专题	中国科学院地理科学与资源研究所
通讯作者	Zheng, Guodi
作者单位	1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Ctr Environm Remediat, Beijing 100101, Peoples R China 2.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100049, Peoples R China 3.Capital Normal Univ, Coll Resource Environm & Tourism, Beijing 100048, Peoples R China
推荐引用方式 GB/T 7714	Yu, Bao,Zheng, Guodi,Wang, Xuedong,et al. Biodegradation of triclosan and triclocarban in sewage sludge during composting under three ventilation strategies[J]. FRONTIERS OF ENVIRONMENTAL SCIENCE & ENGINEERING,2019,13(3):10.
APA	Yu, Bao,Zheng, Guodi,Wang, Xuedong,Wang, Min,&Chen, Tongbin.(2019).Biodegradation of triclosan and triclocarban in sewage sludge during composting under three ventilation strategies.FRONTIERS OF ENVIRONMENTAL SCIENCE & ENGINEERING,13(3),10.
MLA	Yu, Bao,et al."Biodegradation of triclosan and triclocarban in sewage sludge during composting under three ventilation strategies".FRONTIERS OF ENVIRONMENTAL SCIENCE & ENGINEERING 13.3(2019):10.