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Fractions and colloidal distribution of arsenic associated with iron oxide minerals in lead-zinc mine-contaminated soils: Comparison of tailings and smelter pollution

文献类型：期刊论文

作者Ma, Jie1,2,3; Lei, Mei4; Weng, Liping1,2; Li, Yongtao2,3; Chen, Yali1,2; Islam, Md Shafiqul1,2; Zhao, Junying5; Chen, Tongbin4
刊名CHEMOSPHERE
出版日期2019-07-01
卷号227页码:614-623
关键词Arsenic fraction Iron mineralogy Soil Colloid Sequential extraction Reaction kinetics
ISSN号0045-6535
DOI10.1016/j.chemosphere.2019.04.030
通讯作者Lei, Mei(leim@igsnrr.ac.cn)
英文摘要The mining and smelting of lead-zinc (Pb-Zn) ores cause widespread As contamination. The fractions and colloidal distribution of As associated with Fe oxide minerals in Pb-Zn mine-contaminated soils have not been well understood. In this study, As fractions associated with Fe oxide minerals in Pb-Zn tailings- and smelter-contaminated soils were compared using sequential extraction techniques. Kinetic experiments were conducted to characterize the reactivity of Fe oxide minerals. The distribution of As and Fe oxide minerals in soil colloids were analyzed. The results show that in mining-contaminated soils (both tailings and smelter) the relatively active fraction (amorphous hydrous oxide-bound As, As-F3) has a strong relationship with easily reducible Fe (Fe-ox1). In smelter-contaminated soils, relatively stable fractions (crystalline hydrous oxide-bound As, As-F(4)) were closely associated with reducible Fe (Fe-ox2). Although the average proportions of specifically-bound As (AsF2) and As F-3 in contaminated soils were similar, high As release in tailings-contaminated soils was observed because of the high reactivity of Fe oxide minerals in those soils compared with that in smelter-contaminated soils. Some slightly polluted soils with high pH and TOC concentrations formed As-bearing colloidal suspensions. Especially in smelter-contaminated soils, many small sized soil colloids could facilitate As migration with surface runoff or vertical transport. (C) 2019 Elsevier Ltd. All rights reserved.
WOS关键词SEQUENTIAL EXTRACTION PROCEDURE ; PARTICLE-SIZE FRACTIONS ; HEAVY-METALS ; HUMIC-ACID ; BIOACCESSIBILITY ; ADSORPTION ; SPECIATION ; FERRIHYDRITE ; REACTIVITY ; TRANSPORT
资助项目National Key Research and Development Program of China[2016YFD0800304] ; Science and Technology Service Network Initiative Project of Chinese Academy of Sciences[KFJ-STS-ZDTP-007] ; National High-tech R&D Program (863 Program) of China[2014AA06A513] ; National Natural Science Foundation of China[41701262] ; China Postdoctoral Science Foundation[2017M610532]
WOS研究方向Environmental Sciences & Ecology
语种英语
WOS记录号WOS:000469903400068
出版者PERGAMON-ELSEVIER SCIENCE LTD
资助机构National Key Research and Development Program of China ; Science and Technology Service Network Initiative Project of Chinese Academy of Sciences ; National High-tech R&D Program (863 Program) of China ; National Natural Science Foundation of China ; China Postdoctoral Science Foundation
源URL[http://ir.igsnrr.ac.cn/handle/311030/59057]  
专题中国科学院地理科学与资源研究所
通讯作者Lei, Mei
作者单位1.Minist Agr & Rural Affairs, Key Lab Environm Factors Control Agroprod Qual Sa, Tianjin 300191, Peoples R China
2.Minist Agr & Rural Affairs, Agroenvironm Protect Inst, Tianjin 300191, Peoples R China
3.South China Agr Univ, Coll Nat Resources & Environm, Guangzhou 510642, Guangdong, Peoples R China
4.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Ctr Environm Remediat, Beijing 100101, Peoples R China
5.Tianjin Univ Technol, Sch Environm Sci & Safety Engn, Tianjin 300384, Peoples R China
推荐引用方式
GB/T 7714		 Ma, Jie,Lei, Mei,Weng, Liping,et al. Fractions and colloidal distribution of arsenic associated with iron oxide minerals in lead-zinc mine-contaminated soils: Comparison of tailings and smelter pollution[J]. CHEMOSPHERE,2019,227:614-623.
APA Ma, Jie.,Lei, Mei.,Weng, Liping.,Li, Yongtao.,Chen, Yali.,...&Chen, Tongbin.(2019).Fractions and colloidal distribution of arsenic associated with iron oxide minerals in lead-zinc mine-contaminated soils: Comparison of tailings and smelter pollution.CHEMOSPHERE,227,614-623.
MLA Ma, Jie,et al."Fractions and colloidal distribution of arsenic associated with iron oxide minerals in lead-zinc mine-contaminated soils: Comparison of tailings and smelter pollution".CHEMOSPHERE 227(2019):614-623.

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来源：地理科学与资源研究所

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