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Research Paper

A Study on Mineralogical Characterizations of Sangdong Mine Tailings

상동광산 광물찌꺼기의 광물학적 특성 연구

Min Sik Kim1
,
Heon Chan Kang2*
김 민식1
,
강 헌찬2*
1국토교통부 동남권 건설교통기술 지역거점센터
2동아대학교 에너지·자원 공학과
*Corresponding Author. 
31 December 2014. pp. 829-834
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Abstract

The purpose of this study was to investigate the mineralogical characterization of Sangdong mine tailings as a basic research for the removal of heavy metals. The result of particle size analysis shows that the amount of particulate under 400 mesh constituted about 52%. When the tailings of Sangdong mine were analyzed by the Method of the Korean Ministry of Environment in soil, the concentration of As was found to be at a serious level (386 mg/kg), exceeding countermeasure standard (75 mg/kg for agricultural area and the concentration of As increases as the particle size decreases. In order to identify the minerals of heavy metals, SEM/EDS analysis was performed after observation under the stereomicroscope. From the result of SEM/EDS analysis, there are several mineral such as molybdenite, scheelite, pyrite, galena, tenorite, arsenopyrite. After Heavy-liquid separation was performed, the sink were then analyzed by the XRD method. The sink mostly consists of bornite, galena, sphalerite and arsenopyrite.

Keywords
Sangdong mine
Tailings
As
Heavy metals
Arsenopyrite

상동광산 광물찌꺼기로부터 중금속을 제거하기 위한 기초연구로 상동광산 광물찌꺼기의 광물학적 특성 연구를 실시하였다. 입도분석을 위해 광물찌꺼기를 해쇄한 후 입도분석을 실시하였고, 그 결과 400 mesh 이하의 입자가 약 52%존재하고 있었다. 토양오염공정시험법으로 중금속 함량을 분석한 결과, As가 386 mg/kg으로 1지역 대책기준치를 초과하고 있었다. 중금속 형태를 규명하기 위해 실체 현미경을 통해 중금속 입자들을 관측한 후 SEM/EDS 분석한 결과, 휘수연석, 회중석, 황철석과 방연석, 테노라이트, 황비철석을 관측할 수 있었다. 중액 시약을 사용하여 부상물과 침강물로 분리한 후, 침강물을 XRD 분석한 결과 반동석과 방연석, 섬아연석이 존재하였고 As의 경우 황비철석으로 존재하고 있었다.

키워드
상동광산
광물찌꺼기
비소
중금속
황비철석
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Information
  • Publisher :The Korean Society of Mineral and Energy Resources Engineers
  • Publisher(Ko) :한국자원공학회
  • Journal Title :Journal of the Korean Society of Mineral and Energy Resources Engineers
  • Journal Title(Ko) :한국자원공학회지
  • Volume : 51
  • No :6
  • Pages :829-834
  • Received Date : 2014-07-24
  • Revised Date : 2014-10-21
  • Accepted Date : 2014-12-19
  • DOI :https://doi.org/10.12972/ksmer.2014.51.6.829
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