Journal of Environmental Impact Assessment (환경영향평가)

Korean Society of Environmental Impact Assessment (한국환경영향평가학회)
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Environmental Assessment of Vitrified Mine Tailing Aggregate Using Various Leaching Methods

고농도 중금속 함유 광미를 이용한 유리화 처리 골재의 장기 용출특성에 따른 환경안전성 평가

  • Lee, Sang-Woo (Environmental Engineering Section, Division of Biotechnology, Catholic University) ;
  • Chun, Sa-Ho (Environmental Engineering Section, Division of Biotechnology, Catholic University) ;
  • Lee, Ki-Kang (Department of Material Science and Engineering, Kyonggi University) ;
  • Lee, Sanghoon (Environmental Engineering Section, Division of Biotechnology, Catholic University)
  • 이상우 (가톨릭대학교 생명공학부 환경공학전공) ;
  • 천사호 (가톨릭대학교 생명공학부 환경공학전공) ;
  • 이기강 (경기대학교 신소재공학부) ;
  • 이상훈 (가톨릭대학교 생명공학부 환경공학전공)
  • Received : 2006.11.10
  • Accepted : 2007.01.29
  • Published : 2007.02.28
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Abstract

Vitrified aggregates obtained by using mine tailings were evaluated using various leaching methods to assess their environmental safety. The leaching tests in this study include continuous batch leaching, Dutch availability leaching, pH-stat and tank diffusion test as well as TCLP (Toxicity Characteristic Leaching Procedure), which is commonly adopted. Vitrification technique has successfully been applied treating some solid wastes containing high level of heavy metals, such as EAF (Electric Arc Furnace) dust and mine tailings. The potentially most leachable element among trace metals was As and theoretically about 7% of total concentrations in the aggregate can be released under extreme condition. Zinc was leached about 4% and the other trace metals including Cd, Cr and Pb were hardly released from the vitrified mine tailing aggregate.

Keywords

References

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