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논문 기본 정보

자료유형
학술저널
저자정보
김지형 (고려대학교) 권보연 (경기도보건환경연구원) 최명찬 (고려대학교) 임정현 (고려대학교) 장민 (한국광해관리공단) 신연식 (한국광해관리공단)
저널정보
한국폐기물자원순환학회 한국폐기물자원순환학회지 한국폐기물자원순환학회지 제25권 제8호
발행연도
2008.1
수록면
709 - 715 (7page)

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This study investigates low-cost sorbent as replacements for current costly methods of removing heavy metals from AMD (acid mine drainage).This investigation explores the coal mine drain sludge, which is a by-product of AMD of Na-Jeon Mine. The coal drain sludge, which contains 64.7% ferric oxide (Fe₂O₃) as mainly component, was utilized as an adsorption for Cu(II) removal from aqueous solution. The equilibrium and kinetics adsorption was investigated during series of batch adsorption experiments. Langmuir and Freundlich models were used to fit the equilibrium data and Langmuir isotherm was fitted better. The removal efficiency was affected by pH, temperature, initial ion concentration, quantity of adsorbent and contact time. Two simple kinetic model, pseudo-first - and second -order, were used to investigate the adsorption mechanism. The pseudo- first -order reaction kinetics provides the best correlation with the experimental data. As the activation energy was 51.0 kJ mol-1 at pH 5.9, the adsorption of Cu(II) onto coal mine drainage sludge was by chemisorption.

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