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목분 기포제를 이용한 산업부산물 소재 다공성 세라믹에 의한 산성광산배수의 처리특성 연구 KCI 등재

Treatment Characteristics of Acid Mine Drainage by Porous Ceramics using Wood Flour as Pore-forming Agent

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한국환경과학회지 (Journal of Environmental Science International)
한국환경과학회 (The Korean Environmental Sciences Society)
초록

This study was conducted to investigate the removal characteristics of heavy metals and sulfate ion from acid mine drainage by porous zeolite-slag ceramics (ZS ceramics) that was prepared by adding wood flour as pore-foaming agent while calcining the mixtures of natural zeolite and converter slag. The batch test showed that the removal efficiency of heavy metals by pellet-type porous ZS ceramics increased as the particle size of wood flour was decreased and as the weight mixing ratio of wood flour to ZS ceramics was increased. The optimal particle size and weight mixing ratio of wood flour were measured to be 75 ㎛ and 7∼10%, respectively. The removal test with the porous ZS ceramics prepared in these optimal condition showed very high removal efficiencies: more than 98.4% for all heavy metals and 73.9% for sulfate ion. Relative to nonporous ZS ceramics, the increment of removal efficiency of heavy metals by porous ZS ceramics with 75 ㎛ and 10% wood flour was 5.8%, 60.5%, 36.9%, 87.7%, 10.3%, and 57.4% for Al, Cd, Cu, Mn, Pb, and Zn, respectively. The mechanism analysis of removal by the porous ZS ceramics suggested that the heavy metals and sulfate ion from acid mine drainage are eliminated by multiple reactions such as adsorption and/or ion exchange as well as precipitation and/or co-precipitation.

목차
Abstract
 1. 서 론
 2. 재료 및 방법
  2.1. 실험재료
  2.2. 펠렛형 다공성 ZS 세라믹의 제작
  2.3. 실험방법
 3. 결과 및 고찰
  3.1. 다공성 ZS 세라믹 내 목분의 조건에 따른 산성광산배수의 처리특성
  3.2. 다공성 ZS 세라믹에 의한 산성광산배수 처리기작
 4. 결 론
 감사의 글
 REFERENCES
저자
  • 이영남(경성대학교 건설환경도시공학부, School of Civil, Urban, and Environmental Engineering, Kyungsung University) | Yeong-Nam Lee
  • 임수빈(경성대학교 건설환경도시공학부, School of Civil, Urban, and Environmental Engineering, Kyungsung University) | Soo-Bin Yim Corresponding author