Adsorption of Cu and Zn onto Mn/Fe Oxides and Organic Materials in the Extractable Fractions of River Surficial Sediments

doi:10.1080/15320380802547841

IMR OpenIR

	Adsorption of Cu and Zn onto Mn/Fe Oxides and Organic Materials in the Extractable Fractions of River Surficial Sediments
	Li, Y.2,3; Wang, X. L.3; Huang, G. H.1; Zhang, B. Y.; Guo, S. H.2
通讯作者	Huang, G. H.(gordon.huang@uregina.ca)
	2009
发表期刊	SOIL & SEDIMENT CONTAMINATION
ISSN	1532-0383
卷号	18 期号:1 页码:87-101
摘要	The roles of the extractable components (Mn oxides, Fe oxides, and organic materials) of surficial sediments in controlling metals adsorption were investigated. Cu and Zn adsorptions were conducted before and after the surficial sediments extracted with hydroxylamine hydrochloride, an oxalate solution, and H(2)O(2), respectively. The extraction removed target components with extraction efficiencies from 63 to 98%. Nonlinear regression analyses of Cu and Zn adsorptions based on the assumption of additive Langmuir adsorption isotherm were employed to estimate the relative contributions of sediment components to Cu and Zn adsorptions. The results indicate that the greatest contribution to total Cu and Zn adsorption to the surficial sediments on a molar basis was from Mn oxides in the extractable fractions. Both Cu and Zn adsorption capacities of Mn oxides exceeded those of Fe oxides by approximately one order of magnitude, fewer roles were attributed to the adsorption of organic material ( OM), and the estimated contribution of the residual fraction to total Cu and Zn adsorption was insignificant. These information implied that the roles of metal oxides ( Fe and Mn oxides) in the extractable form of the surficial sediments, especially Mn oxides, was the most important component in controlling heavy metal transportation in aquatic environments.
关键词	Selective extraction iron oxides manganese oxides statistical analysis heavy metal
资助者	National Basic Research Priorities Program of China
DOI	10.1080/15320380802547841
收录类别	SCI
语种	英语
资助项目	National Basic Research Priorities Program of China[2004CB3418501]
WOS研究方向	Environmental Sciences & Ecology
WOS类目	Environmental Sciences
WOS记录号	WOS:000262001400007
出版者	TAYLOR & FRANCIS INC
引用统计	被引频次：28[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/126324
专题	中国科学院金属研究所
通讯作者	Huang, G. H.
作者单位	1.Univ Regina, Fac Engn, Environm Syst Engn Program, Regina, SK S4S 0A2, Canada 2.Chinese Acad Sci, Shenyang, Peoples R China 3.Jilin Univ, Changchun 130023, Peoples R China
推荐引用方式 GB/T 7714	Li, Y.,Wang, X. L.,Huang, G. H.,et al. Adsorption of Cu and Zn onto Mn/Fe Oxides and Organic Materials in the Extractable Fractions of River Surficial Sediments[J]. SOIL & SEDIMENT CONTAMINATION,2009,18(1):87-101.
APA	Li, Y.,Wang, X. L.,Huang, G. H.,Zhang, B. Y.,&Guo, S. H..(2009).Adsorption of Cu and Zn onto Mn/Fe Oxides and Organic Materials in the Extractable Fractions of River Surficial Sediments.SOIL & SEDIMENT CONTAMINATION,18(1),87-101.
MLA	Li, Y.,et al."Adsorption of Cu and Zn onto Mn/Fe Oxides and Organic Materials in the Extractable Fractions of River Surficial Sediments".SOIL & SEDIMENT CONTAMINATION 18.1(2009):87-101.