Characteristics of suspended particulate matter in a typical slow-moving river of northern China: Insight into its structure and motion behavior

CORC > 生态环境研究中心 > 中国科学院生态环境研究中心 > 环境水质学国家重点实验室

	Characteristics of suspended particulate matter in a typical slow-moving river of northern China: Insight into its structure and motion behavior
	Jin, Xin; Zhang, Wenqiang; Zhu, Yaoyao; Shan, Baoqing
刊名	CHEMOSPHERE
	2018-07-01
卷号	202 页码:521-529
关键词	Suspended particulate matter Heavy pollution Microstructure Particle size Water quality
ISSN号	0045-6535
文献子类	Article
英文摘要	To investigate the characteristics of suspended particulate matter (SPM) in rivers of northern China, SPM was collected from 20 sampling sites within the severely polluted slow-moving Ziya River Mainstream (ZRM) and from 20 sampling sites within the less-polluted fast-moving Luanhe River (LR) between October and November of 2016, Physical and chemical attributes of river water from the ZRM and LR were measured; the microstructure, specific surface area and particle size of the SPM were also determined. The SPM had thicker organic coated layers on inorganic particles within the ZRM, compared with the LR, indicating strong interaction of the SPM with the water column. Along the ZRM length, these organic coated layers evolved, first plugging particle pores and then increasing in volume, causing the specific surface area to decrease at first and then increase. The presence of organic coated layers on inorganic particles greatly changed their particle size, density and inducing changes in their motion behavior. Such changes in SPM microstructure were most apparent in the slow-moving polluted ZRM. Given that SPM can adsorb contaminants, such as phosphorus and heavy metals, onto its surfaces and transport them downstream, these changes could have a profound impact on both sediment transport and river ecosystem function. Our results suggest we need to reevaluate our previous river management measures for slow-moving polluted rivers. (C) 2018 Published by Elsevier Ltd.
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/41115]
专题	生态环境研究中心_环境水质学国家重点实验室
推荐引用方式 GB/T 7714	Jin, Xin,Zhang, Wenqiang,Zhu, Yaoyao,et al. Characteristics of suspended particulate matter in a typical slow-moving river of northern China: Insight into its structure and motion behavior[J]. CHEMOSPHERE,2018,202:521-529.
APA	Jin, Xin,Zhang, Wenqiang,Zhu, Yaoyao,&Shan, Baoqing.(2018).Characteristics of suspended particulate matter in a typical slow-moving river of northern China: Insight into its structure and motion behavior.CHEMOSPHERE,202,521-529.
MLA	Jin, Xin,et al."Characteristics of suspended particulate matter in a typical slow-moving river of northern China: Insight into its structure and motion behavior".CHEMOSPHERE 202(2018):521-529.