气候变化领域集成服务门户(CCPortal): Response mechanism of soil leachate and disinfection by-product formation to extreme precipitation events under continuous drought scenario

CCPortal

DOI	10.1016/j.scitotenv.2024.170123
	Response mechanism of soil leachate and disinfection by-product formation to extreme precipitation events under continuous drought scenario
	Yuan, Yujin; Li, Qingsong; Deng, Jing; Ma, Xiaoyan; Liao, Xiaobin; Zou, Jing; Liao, Jie; Huang, Huahan; Dai, Huilin
发表日期	2024
ISSN	0048-9697
EISSN	1879-1026
起始页码	916
卷号	916
英文摘要	In this study, a rainfall simulation device was employed to investigate the response mechanism of soil leachate and disinfection by-products formation potential (DBPsFP) to extreme precipitation events. The results revealed that the aromaticity of dissolved organic matter (DOM) and the concentration of hydrophobic DOM containing aromatic carbon groups in leachate decreased with rising temperature. The humification degree of DOM decreased at 25 C (99 mm/h), while the humification degree and protein-like level of DOM increased under high temperatures droughts (45 C and 65 C). Higher temperatures resulted in the leach of more microbial-derived humus and low molecular phenolic compounds from soil and broadened the range of molecular weight distribution. Increasing temperature increased DBPsFP and DBPs species and caused the precursors of haloacetic acids (HAAs) in leachate to become more hydrophobic, while the precursors of trihalomethanes (THMs) became more hydrophilic. Most importantly, the increased temperature attenuated the rainfall-mediated dilution of organic pollutant concentration, and temperature has a more significant effect than extreme rainfall in DOM abundance and the formation potential (or species) of DBPs. The results help to better understand the impact of climate change on the physicochemical processes of water quality.
英文关键词	Climate change; Disinfection by-products; Extreme heavy rainfall; Soil leaching; Water supply quality
语种	英语
WOS研究方向	Environmental Sciences & Ecology
WOS类目	Environmental Sciences
WOS记录号	WOS:001175014600001
来源期刊	SCIENCE OF THE TOTAL ENVIRONMENT
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/309341
作者单位	Xiamen University of Technology; Zhejiang University of Technology; Huaqiao University
推荐引用方式 GB/T 7714	Yuan, Yujin,Li, Qingsong,Deng, Jing,et al. Response mechanism of soil leachate and disinfection by-product formation to extreme precipitation events under continuous drought scenario[J],2024,916.
APA	Yuan, Yujin.,Li, Qingsong.,Deng, Jing.,Ma, Xiaoyan.,Liao, Xiaobin.,...&Dai, Huilin.(2024).Response mechanism of soil leachate and disinfection by-product formation to extreme precipitation events under continuous drought scenario.SCIENCE OF THE TOTAL ENVIRONMENT,916.
MLA	Yuan, Yujin,et al."Response mechanism of soil leachate and disinfection by-product formation to extreme precipitation events under continuous drought scenario".SCIENCE OF THE TOTAL ENVIRONMENT 916(2024).