Econ. Environ. Geol. 2004; 37(1): 87-98

Published online February 28, 2004

© THE KOREAN SOCIETY OF ECONOMIC AND ENVIRONMENTAL GEOLOGY

Chemical Speciation and Potential Mobility of Heavy Metals in Tailings and Contaminated Soils

Pyeong-Koo Lee1*, Min-Ju Kang1, Sang-Hoon Choi2 and Seong-Cheon Shin1

1Geological and Environmental Hazards Division, Korea Institute of Geoscience and Mineral Resources, Daejeon 305-350, Korea
2Department of Earth and Environmental Sciences, Chungbuk National University, Chongju 361-763, Korea

Received: November 6, 2003; Accepted: February 18, 2004

Abstract

Tailings and contaminated soils from Cheongyang mine and Seobo mine have been analysed by ICP-AES from 5-step sequential extraction method of multielement determination on extraction solutions at each step. As and Co within tailings and contaminated soils from Cheongyang mine and Seobo mine are mainly in the residual phase. In case of Cd, Cu and Zn, the most dominant fraction for tailings of Cheongyang mine is the oxidizable phase, while tailings of Seobo mine is dominated by the residual phase. In contaminated soils from Seobo mine, the predominant fraction for Cd, Cu and Zn is the Fe-Mn oxide phase. The exchangeable fraction of Pb in tailings from Cheongyang mine and Seobo mine is relatively high compared with those of other metals; whereas Pb fraction in contaminated soils from Seobo mine is largely associated with the residual fraction.

Keywords sequential extraction, geochemical phases, Cheongyang mine, Seobo mine, tailing, contaminated soil

Article

Econ. Environ. Geol. 2004; 37(1): 87-98

Published online February 28, 2004

Copyright © THE KOREAN SOCIETY OF ECONOMIC AND ENVIRONMENTAL GEOLOGY.

Chemical Speciation and Potential Mobility of Heavy Metals in Tailings and Contaminated Soils

Pyeong-Koo Lee1*, Min-Ju Kang1, Sang-Hoon Choi2 and Seong-Cheon Shin1

1Geological and Environmental Hazards Division, Korea Institute of Geoscience and Mineral Resources, Daejeon 305-350, Korea
2Department of Earth and Environmental Sciences, Chungbuk National University, Chongju 361-763, Korea

Received: November 6, 2003; Accepted: February 18, 2004

Abstract

Tailings and contaminated soils from Cheongyang mine and Seobo mine have been analysed by ICP-AES from 5-step sequential extraction method of multielement determination on extraction solutions at each step. As and Co within tailings and contaminated soils from Cheongyang mine and Seobo mine are mainly in the residual phase. In case of Cd, Cu and Zn, the most dominant fraction for tailings of Cheongyang mine is the oxidizable phase, while tailings of Seobo mine is dominated by the residual phase. In contaminated soils from Seobo mine, the predominant fraction for Cd, Cu and Zn is the Fe-Mn oxide phase. The exchangeable fraction of Pb in tailings from Cheongyang mine and Seobo mine is relatively high compared with those of other metals; whereas Pb fraction in contaminated soils from Seobo mine is largely associated with the residual fraction.

Keywords sequential extraction, geochemical phases, Cheongyang mine, Seobo mine, tailing, contaminated soil

    KSEEG
    Jun 30, 2024 Vol.57 No.3, pp. 281~352

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