Journal of Soil and Groundwater Environment (한국지하수토양환경학회지:지하수토양환경)

Korean Society of Soil and Groundwater Environment (한국지하수토양환경학회)
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Evaluation about Contaminant Migration Near Abandoned Mine in Central Region

중부지역에 위치한 폐광산 주변의 오염물질 이동성 평가

  • Lee, Jong-Deuk (Department Of Enviromental Engineering, Andong University) ;
  • Kim, Tae-Dong (Department Of Enviromental Engineering, Andong University) ;
  • Jeon, Gee-Seok (Korea Enviroment Corporation, HQ of Water Enviroment Management) ;
  • Kim, Hee-Joung (Division of Environmental Research Center, Kangwon National University)
  • 이종득 (안동대학교 환경공학과) ;
  • 김태동 (안동대학교 환경공학과) ;
  • 전기석 (한국환경공단 물환경본부) ;
  • 김휘중 (강원대학교 환경연구소)
  • Received : 2010.08.11
  • Accepted : 2010.12.20
  • Published : 2010.12.31
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Abstract

Several mines including Namil, Solim and Jungbong which are located in the Gyeonggi and Kangwon province have been abandoned and closed since 1980 due to "The promotion policy of mining industry". An enormous amount of mining wastes was disposed without proper treatment, which caused soil pollution in tailing dam and ore-dressing plant areas. However, any quantitative assessment was not performed about soil and water pollution by transporting mining wastes such as acid mine drainage, mine tailing, and rocky waste. In this research, heavy metals in mining wastes were analyzed according to leaching method which used 0.1 N HCl and total solution method which used Aqua-regia to recognize the ecological effect of distance from hot spot. We sampled tailings, rocky wastes and soils around the abandoned mine. Chemical and physical parameters such as pH, electrical conductivity (EC), total organic carbon (TOC), soil texture and heavy metal concentration were analyzed. The range of soil's pH is between 4.3 and 6.4 in the tailing dam and oredressing plant area due to mining activity. Total concentrations of As, Cu, and Pb in soil near ore dressing plant area are 250.9, 249.3 and 117.2 mg/kg respectively, which are higher than any other ones near tailing dam area. Arsenic concentration in tailing dams is 31.0 mg/kg, which is also considered as heavily polluted condition comparing with the remediation required level(RRL) in "Soil environment conservation Act".

Keywords

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