Economic and Environmental Geology (자원환경지질)

The Korean Society of Economic and Environmental Geology (대한자원환경지질학회)
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Studies on Mineralogical and Geochemical Characterization of Tailings and Leachate Water in Yonghwa Mine, Yeongyang Area

영양 용화광산의 광미 및 침출수의 광물학적 및 지화학적 특성 연구

  • Kang, Han (Beautiful Environment Construction Corporation) ;
  • Kim, Young-Hun (Department of environmental Engineering, Andong National University) ;
  • Jang, Yun-Deug (Department of Geology, Kyungpook National University) ;
  • Kim, Jeong-Jin (Department of Earth and Environmental Sciences, Andong National University)
  • 강한 (아름다운환경건설(주)) ;
  • 김영훈 (안동대학교 환경공학과) ;
  • 장윤득 (경북대학교 지질학과) ;
  • 김정진 (안동대학교 지구환경과학과)
  • Received : 2012.04.16
  • Accepted : 20120000
  • Published : 2012.06.28
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Abstract

Current study includes the analysis of mine tailings and leachate water and prediction of species originated from the tailings. The variation of contaminants were measured upon the distance from the tailings to the nearby stream. The ions concentration was highest at the tailings and pit mouth and it becomes lower as it goes far away from the origin. This is the reason that the leachate was diluted with the uncontaminated stream water. The tailings were mainly classified into reddish one and yellow one. The main mineral of reddish tailings were quarts, illite, plumbojarosite and a small amount of sphalerite. The main mineral of yellow tailings were muscovite, quarts, plumbojarosite, and a small amount of chalcopyrite and sphalerite. Pb and Zn were found in the leachate in high concentration and become the major contaminants. These come from the dissolution of plumbojarosite and sphalerite contained in the mine tailings.

용화광산의 광미와 침출수에 대한 분석을 실시하여 광미로부터 부과될 수 있는 성분을 예측하고, 침출수가 주변하천으로 유입될 때 오염물질의 거리에 따른 변화를 측정하였다. 하천수의 거리에 따른 변화는 갱내수와 침출수가 유출되는 지점에는 대체로 높게 나타나고 하류로 갈수록 이온의 농도는 급격히 낮아진다. 이는 침출수에 비해 훨씬 유량이 많은 비오염하천수에 의한 희석효과 때문이다. 광미는 붉은색과 노란색으로 구분되며 붉은색 광미의 주 구성광물은 석영, 일라이트, 플럼보자로사이트와 약간의 섬아연석이며 노란색 광미는 백운모, 석영, 플럼보자로사이트(Plumbojarosite) 그리고 소량의 황동석(Chalcopyrite)과 섬아연석(Sphalerite)을 포함하고 있다. 침출수에서 높은 값을 나타내는 Pb, Zn 등은 광미에 포함된 플럼보자로사이트와 섬아연석의 용해작용에 의한 것으로 하천수의 오염에 주 원인으로 작용하고 있다.

Keywords

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