Modeling photodegradation kinetics of organic micropollutants in water bodies: A case of the Yellow River estuary

doi:10.1016/j.jhazmat.2018.01.051

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	Modeling photodegradation kinetics of organic micropollutants in water bodies: A case of the Yellow River estuary
	Zhou, Chengzhi 1; Chen, Jingwen 1; Xie, Huaijun 1; Zhang, Ya-nan 1; Li, Yingjie 1; Wang, Yan 1; Xie, Qing 1; Zhang, Siyu 2
刊名	JOURNAL OF HAZARDOUS MATERIALS
	2018-05-05
卷号	349 页码:60-67
关键词	Photodegradation Kinetics Sulfamethoxazole And Acyclovir Sunlight Attenuation Yellow River Estuary
ISSN号	0304-3894
DOI	10.1016/j.jhazmat.2018.01.051
英文摘要	Predicting photodegradation rate constants (k) of pollutants in water bodies is important for assessing their persistence and fate. This prediction used to be based on the k values determined under laboratory conditions that seldom consider underwater downward sunlight attenuation in the field. We studied a procedure to predict k taking the Yellow River estuary and two model chemicals (sulfamethoxazole and acyclovir) as a case. Models were developed for predicting underwater sunlight intensities from optically-active substances. Based on the predicted underwater sunlight intensities, hourly variation of k for the model compounds was predicted as a function of water depth, for a fresh water, an estuarine water and a seawater body in the estuary. Results show that photodegradation half-lives (t(1/2)) of the two compounds will be underestimated by dozens of times if underwater downward sunlight attenuation and intensity variation are not considered. Outdoor validation experiments show the maximum deviation between the predicted and measured k values is a factor of 2. The developed models can be employed to predict k of environmental chemicals in coastal water bodies once they are locally calibrated.
WOS研究方向	Engineering ; Environmental Sciences & Ecology
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000428101400008
内容类型	期刊论文
源URL	[http://210.72.129.5/handle/321005/109269]
专题	沈阳应用生态研究所_沈阳应用生态研究所_期刊论文
通讯作者	Chen, Jingwen
作者单位	1.Dalian Univ Technol, Key Lab Ind Ecol & Environm Engn, MOE, Sch Environm Sci & Technol, Linggong Rd 2, Dalian 116024, Peoples R China 2.Chinese Acad Sci, Inst Appl Ecol, Shenyang 110016, Liaoning, Peoples R China
推荐引用方式 GB/T 7714	Zhou, Chengzhi,Chen, Jingwen,Xie, Huaijun,et al. Modeling photodegradation kinetics of organic micropollutants in water bodies: A case of the Yellow River estuary[J]. JOURNAL OF HAZARDOUS MATERIALS,2018,349:60-67.
APA	Zhou, Chengzhi.,Chen, Jingwen.,Xie, Huaijun.,Zhang, Ya-nan.,Li, Yingjie.,...&Zhang, Siyu.(2018).Modeling photodegradation kinetics of organic micropollutants in water bodies: A case of the Yellow River estuary.JOURNAL OF HAZARDOUS MATERIALS,349,60-67.
MLA	Zhou, Chengzhi,et al."Modeling photodegradation kinetics of organic micropollutants in water bodies: A case of the Yellow River estuary".JOURNAL OF HAZARDOUS MATERIALS 349(2018):60-67.