Triclosan facilitates the recovery of volatile fatty acids from waste activated sludge

doi:10.1016/j.scitotenv.2020.142336

	Triclosan facilitates the recovery of volatile fatty acids from waste activated sludge
	Zou, Mei 1; Yin, Mengyu 1; Yuan, Yayi 1; Wang, Dongbo 2; Xiong, Weiping 2; Yang, Xiao 3; Zhou, Yaoyu 4; Chen, Hongbo 1
刊名	SCIENCE OF THE TOTAL ENVIRONMENT
	2021-02-01
卷号	754 页码:9
关键词	Triclosan Waste activated sludge Volatile fatty acids Anaerobic fermentation
ISSN号	0048-9697
DOI	10.1016/j.scitotenv.2020.142336
通讯作者	Chen, Hongbo(chenhongbo@hnu.edu.cn)
英文摘要	The emergence of triclosan (TCS) in the environment has caused extensive concern, but its role in waste activated sludge (WAS) anaerobic fermentation (AF) is still uncertain. This work investigated the impact of TCS on volatile fatty acids (VFAs) recycling from WAS. The results showed that TCS of 200 mg/kg TSS increased the maximum VFA accumulation from 7284 to 15,083 mg COD/L. The increase in total VFA production is attributed to the massive increase in acetic acid. Mechanism exploration showed that TCS promotes WAS solubilization by facilitating cell breakage and extracellular polymeric substances disruption, and stimulates AF by enhancing the activity of key enzymes among all stages. TCS promotes acidification stronger than methanogenesis, which makes VFA production faster than consumption, leading to increased VFA accumulation. These findings provide novel insights for revealing the role of TCS in WAS resource recovery, and offer thoughts for the selective production of final recycling products of TCS-containing WAS. (C) 2020 Elsevier B.V. All rights reserved.
资助项目	National Natural Science Foundation of China (NSFC)[51608464] ; Natural Science Foundation of Hunan Province[2020JJ4576]
WOS关键词	ANAEROBIC FERMENTATION ; METHANE PRODUCTION ; SEWAGE-SLUDGE ; TRICLOCARBAN ; MECHANISMS ; DIGESTION ; PRODUCTS
WOS研究方向	Environmental Sciences & Ecology
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000593907600002
资助机构	National Natural Science Foundation of China (NSFC) ; Natural Science Foundation of Hunan Province
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/137662]
专题	中国科学院地理科学与资源研究所
通讯作者	Chen, Hongbo
作者单位	1.Xiangtan Univ, Coll Environm & Resources, Xiangtan 411105, Peoples R China 2.Hunan Univ, Coll Environm Sci & Engn, Changsha 410082, Peoples R China 3.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Land Surface Pattern & Simulat, Beijing 100101, Peoples R China 4.Hunan Agr Univ, Coll Resources & Environm, Changsha 410128, Peoples R China
推荐引用方式 GB/T 7714	Zou, Mei,Yin, Mengyu,Yuan, Yayi,et al. Triclosan facilitates the recovery of volatile fatty acids from waste activated sludge[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2021,754:9.
APA	Zou, Mei.,Yin, Mengyu.,Yuan, Yayi.,Wang, Dongbo.,Xiong, Weiping.,...&Chen, Hongbo.(2021).Triclosan facilitates the recovery of volatile fatty acids from waste activated sludge.SCIENCE OF THE TOTAL ENVIRONMENT,754,9.
MLA	Zou, Mei,et al."Triclosan facilitates the recovery of volatile fatty acids from waste activated sludge".SCIENCE OF THE TOTAL ENVIRONMENT 754(2021):9.