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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
Corresponding AuthorHuang, G. H.(gordon.huang@uregina.ca)
2009
Source PublicationSOIL & SEDIMENT CONTAMINATION
ISSN1532-0383
Volume18Issue:1Pages:87-101
AbstractThe 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.
KeywordSelective extraction iron oxides manganese oxides statistical analysis heavy metal
Funding OrganizationNational Basic Research Priorities Program of China
DOI10.1080/15320380802547841
Indexed BySCI
Language英语
Funding ProjectNational Basic Research Priorities Program of China[2004CB3418501]
WOS Research AreaEnvironmental Sciences & Ecology
WOS SubjectEnvironmental Sciences
WOS IDWOS:000262001400007
PublisherTAYLOR & FRANCIS INC
Citation statistics
Cited Times:23[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/126324
Collection中国科学院金属研究所
Corresponding AuthorHuang, G. H.
Affiliation1.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
Recommended Citation
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.
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