Extraction of copper and zinc from naturally contaminated copper mine soils: Chemical fractionation analysis and risk assessment

Jiu hua Xiao; Jun Zhou; Zhao hui Wang; Si yue Li; Wei chao Zhang; Chang ling Fang; Yao guang Guo; Dong xue Xiao; Xiao yi Lou; Jian she Liu

doi:10.1007/s11771-018-3824-6

Extraction of copper and zinc from naturally contaminated copper mine soils: Chemical fractionation analysis and risk assessment

Jiu hua Xiao, Jun Zhou, Zhao hui Wang, Si yue Li, Wei chao Zhang, Chang ling Fang, Yao guang Guo, Dong xue Xiao, Xiao yi Lou, Jian she Liu

Research output: Contribution to journal › Article › peer-review

2 Scopus citations

Abstract

The leaching behaviour of Cu and Zn from contaminated soils at a copper mine was investigated using four extractants: citric acid (CA), oxalic acid (OA), ethylenediaminetetraacetic acid (EDTA) and nitrilotriacetic acid (NTA). Six soil samples were characterized for the distribution of four chemical fractions of Cu or Zn (acid-soluble, reducible, oxidizable and residual). For the extraction of Cu, EDTA is more effective than other extractants when the concentration is less than 0.02 mol/L. The leaching efficiency for Cu was at least 15% higher for EDTA than for the other extractants at the same concentrations. Similar leaching behaviour was observed in the extraction of Zn. After extraction by CA, OA, EDTA or NTA, the acid-soluble fractions and the reducible fractions of Cu were the main fractions extracted. The potential environmental risks related to speciation were evaluated, and after extraction these risks were reduced.

Translated title of the contribution	采用不同提取剂对排土场土壤进行重金属提取
Original language	English
Pages (from-to)	1274-1284
Number of pages	11
Journal	Journal of Central South University
Volume	25
Issue number	6
DOIs	https://doi.org/10.1007/s11771-018-3824-6
State	Published - 1 Jun 2018
Externally published	Yes

Keywords

chemical fractions
heavy metal
leaching
waste dump soil

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10.1007/s11771-018-3824-6

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@article{d6cae92dbf0e47f29958ef0acc424270,

title = "Extraction of copper and zinc from naturally contaminated copper mine soils: Chemical fractionation analysis and risk assessment",

abstract = "The leaching behaviour of Cu and Zn from contaminated soils at a copper mine was investigated using four extractants: citric acid (CA), oxalic acid (OA), ethylenediaminetetraacetic acid (EDTA) and nitrilotriacetic acid (NTA). Six soil samples were characterized for the distribution of four chemical fractions of Cu or Zn (acid-soluble, reducible, oxidizable and residual). For the extraction of Cu, EDTA is more effective than other extractants when the concentration is less than 0.02 mol/L. The leaching efficiency for Cu was at least 15\% higher for EDTA than for the other extractants at the same concentrations. Similar leaching behaviour was observed in the extraction of Zn. After extraction by CA, OA, EDTA or NTA, the acid-soluble fractions and the reducible fractions of Cu were the main fractions extracted. The potential environmental risks related to speciation were evaluated, and after extraction these risks were reduced.",

keywords = "chemical fractions, heavy metal, leaching, waste dump soil",

author = "Xiao, \{Jiu hua\} and Jun Zhou and Wang, \{Zhao hui\} and Li, \{Si yue\} and Zhang, \{Wei chao\} and Fang, \{Chang ling\} and Guo, \{Yao guang\} and Xiao, \{Dong xue\} and Lou, \{Xiao yi\} and Liu, \{Jian she\}",

note = "Publisher Copyright: {\textcopyright} 2018, Central South University Press and Springer-Verlag GmbH Germany, part of Springer Nature.",

year = "2018",

month = jun,

day = "1",

doi = "10.1007/s11771-018-3824-6",

language = "英语",

volume = "25",

pages = "1274--1284",

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TY - JOUR

T1 - Extraction of copper and zinc from naturally contaminated copper mine soils

T2 - Chemical fractionation analysis and risk assessment

AU - Xiao, Jiu hua

AU - Zhou, Jun

AU - Wang, Zhao hui

AU - Li, Si yue

AU - Zhang, Wei chao

AU - Fang, Chang ling

AU - Guo, Yao guang

AU - Xiao, Dong xue

AU - Lou, Xiao yi

AU - Liu, Jian she

PY - 2018/6/1

Y1 - 2018/6/1

N2 - The leaching behaviour of Cu and Zn from contaminated soils at a copper mine was investigated using four extractants: citric acid (CA), oxalic acid (OA), ethylenediaminetetraacetic acid (EDTA) and nitrilotriacetic acid (NTA). Six soil samples were characterized for the distribution of four chemical fractions of Cu or Zn (acid-soluble, reducible, oxidizable and residual). For the extraction of Cu, EDTA is more effective than other extractants when the concentration is less than 0.02 mol/L. The leaching efficiency for Cu was at least 15% higher for EDTA than for the other extractants at the same concentrations. Similar leaching behaviour was observed in the extraction of Zn. After extraction by CA, OA, EDTA or NTA, the acid-soluble fractions and the reducible fractions of Cu were the main fractions extracted. The potential environmental risks related to speciation were evaluated, and after extraction these risks were reduced.

AB - The leaching behaviour of Cu and Zn from contaminated soils at a copper mine was investigated using four extractants: citric acid (CA), oxalic acid (OA), ethylenediaminetetraacetic acid (EDTA) and nitrilotriacetic acid (NTA). Six soil samples were characterized for the distribution of four chemical fractions of Cu or Zn (acid-soluble, reducible, oxidizable and residual). For the extraction of Cu, EDTA is more effective than other extractants when the concentration is less than 0.02 mol/L. The leaching efficiency for Cu was at least 15% higher for EDTA than for the other extractants at the same concentrations. Similar leaching behaviour was observed in the extraction of Zn. After extraction by CA, OA, EDTA or NTA, the acid-soluble fractions and the reducible fractions of Cu were the main fractions extracted. The potential environmental risks related to speciation were evaluated, and after extraction these risks were reduced.

KW - chemical fractions

KW - heavy metal

KW - leaching

KW - waste dump soil

UR - https://www.scopus.com/pages/publications/85049747852

U2 - 10.1007/s11771-018-3824-6

DO - 10.1007/s11771-018-3824-6

M3 - 文章

AN - SCOPUS:85049747852

SN - 2095-2899

VL - 25

SP - 1274

EP - 1284

JO - Journal of Central South University

JF - Journal of Central South University

IS - 6

ER -

Extraction of copper and zinc from naturally contaminated copper mine soils: Chemical fractionation analysis and risk assessment

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Keywords

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