Contamination and Mobility of Toxic Trace Elements in Tailings of Samsanjeil Mine

삼산제일광산 광미 내 유해 미량원소의 오염 및 이동도

  • Yeon Kyu-Hun (Department of Geological and Environmental Hazards, Korea Institute of Geoscience & Mineral Resources) ;
  • Lee Pyeong-Koo (Department of Geological and Environmental Hazards, Korea Institute of Geoscience & Mineral Resources) ;
  • Youm Seung-Jun (Department of Geological and Environmental Hazards, Korea Institute of Geoscience & Mineral Resources) ;
  • Choi Sang-Hoon (Department of Earth and Environmental Sciences, Chungbuk National University)
  • 연규훈 (한국지질자원연구원 지질환경재해연구부) ;
  • 이평구 (한국지질자원연구원 지질환경재해연구부) ;
  • 염승준 (한국지질자원연구원 지질환경재해연구부) ;
  • 최상훈 (충북대학교 지구환경과학과)
  • Published : 2005.08.01

Abstract

In order to examine the extent of environmental contamination at abandoned Samsanjeil Cu mines in Kosung-kun, Kyeongsangnam-do, we have investigated the contaminations and mobility of toxic trace elements from mine wastes including about 280,000 tonnages of tailings by chemical experiments (total extraction, partial extraction by 0.1N HCI and sequential extraction procedure). Total concentrations of trace elements showed that Cu, As, Co, Zn, Pb, and Cd concentrations in tailings were 14.0, 3.6, 3.1, 2.1, 2.1 and 1.6 times greater than those in background soil, respectively. From the proportion of metals bound to the exchangeable and carbonate fractions, the comparative mobility of metals decrease in order of $Zn(29.0\%)>Cu(12.3\%)Pb(9.6\%)>Cd(3.0\%)>As=Co(0.0\%)$. Based on the concentrations, chemical speciations of tailings, waste rock and nearby soil, it was revealed that Cu and Zn were the most possible elements to contaminate the surrounding environment in Samsanjeil mine area. In addition, the tailings had total trace metal concentrations below Dutch guideline values except Cu, and they might not affect adverse impact on environment.

Keywords

Samsanjeil Mine;tailings;toxic trace elements;mobility

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