Resources Recycling (자원리싸이클링)

The Korean Institute of Resources Recycling (한국자원리싸이클링학회)
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Precipitaion of Acid Mine Drainage Using Coagulants and Flocculants

유기 및 무기응집제를 이용한 산성광산배수 침전 연구

  • Oh, Taek-Geun (Department of Energy and Mineral Resources Engineering, Dong-A University) ;
  • Hwang, Won-Jeong (Department of Energy and Mineral Resources Engineering, Dong-A University) ;
  • Lee, Jong-Un (Department of Energy and Mineral Resources Engineering, Chonnam National University) ;
  • Cha, Jongmun (Department of Energy and Mineral Resources Engineering, Chonnam National University)
  • 오택근 (동아대학교 에너지.자원공학과) ;
  • 황원정 (동아대학교 에너지.자원공학과) ;
  • 이종운 (전남대학교 에너지자원공학과) ;
  • 차종문 (전남대학교 에너지자원공학과)
  • Received : 2016.02.04
  • Accepted : 2016.04.15
  • Published : 2016.06.30
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Abstract

The passive treatment was required a large area for the treatment of acid mine drainage (AMD), and pollutants were discharged with mine drainage by the increased flow rate in summer. This study was performed to improve the turbidity and to precipitate the pollutants quickly using coagulants and flocculants in AMD of abandoned mine sites that were difficult to build the passive treatment system. The coagulant PAC (Poly aluminium chloride) and flocculant PAM (Polyacrylamide) were selected to improve turbidity in W mine waters. We also tested the particle size analysis, ICP-OES and/or SEM-EDS for water and sludge samples.

산성광산배수(Acid mine drainage; AMD)를 처리하기 위한 자연정화시설의 반응조는 긴 체류시간을 위해 넓은 면적이 요구되며, 집중호우로 인해 유량이 급격히 늘어나는 여름에는 체류시간 부족으로 반응이 충분히 일어나지 못하고 많은 오염물질이 유출수로 빠져나가는 현상이 발생한다. 본 연구에서는 국내 부지 및 환경 특성으로 인해 넓은 면적이 요구되는 자연정화시설을 설치하기에 어려움이 있는 폐광산의 AMD에 응집제를 사용하여 빠른 시간 내에 오염물질을 침전시키고 탁도를 개선하는 연구를 진행하였다. W광산에서 배출되는 AMD에 무기응집제 PAC (Poly Aluminium Chloride)와 유기응집제인 PAM (Polyacrylamide) 성분이 포함된 고분자응집제를 사용하여 AMD의 상등수 및 여액의 중금속 농도와 침전된 슬러지의 형태를 파악하기 위해 입도분석, ICP-OES, SEM-EDS 분석을 실시하였다.

Keywords

References

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