한국환경과학회지 (Journal of Environmental Science International)

  • 제20권2호
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  • Pages.241-249
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  • 2011
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  • 1225-4517(pISSN)
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  • 2287-3503(eISSN)
한국환경과학회 (The Korean Environmental Sciences Society)
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석탄광산배수슬러지를 이용한 액상상태의 비소제거 흡착특성 및 반응속도에 관한 연구

A Study of Kinetics and Adsorption Characteristics for Removal of Arsenate by Using Coal Mine Drainage Sludge in Aqueous Phase

  • 이세반 (고려대학교 건축사회환경공학과) ;
  • 최명찬 (고려대학교 건축사회환경공학과) ;
  • 장민 (한국광해관리공단) ;
  • 문덕현 (조선대학교 환경공학과) ;
  • 조윤철 (광운대학교 녹색환경에너지대학원) ;
  • 김지형 (고려대학교 건축사회환경공학과)
  • Lee, Se-Ban (Department of Civil Environmental and Architectural Engineering, Korea University) ;
  • Cui, Ming-Can (Department of Civil Environmental and Architectural Engineering, Korea University) ;
  • Jang, Min (Korea Mine Reclamation Corporation, Institute of Mine Reclamation Technology) ;
  • Moon, Deok-Hyun (Department of Environmental Engineering, Chosun University) ;
  • Cho, Yun-Chul (Graduate School of Green Environment & Energy, Kwangwoon University) ;
  • Khim, Jee-Hyeong (Department of Civil Environmental and Architectural Engineering, Korea University)
  • 투고 : 2010.11.12
  • 심사 : 2011.01.05
  • 발행 : 2011.02.28
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초록

In this research, equilibrium of adsorption and kinetics of As(V) removal were investigated. The coal mine drainage sludge(CMDS) was used as adsorbent. To find out the physical and chemical properties of CMDS, XRD (X-ray diffraction), XRF (X-ray fluorescence spectrometer) analysis were carried out. The CMDS was consist of 70% of goethite and 30% of calcite. From the results, an adsorption mechanism of As(V) with CMDS was dominated by iron oxides. Langmuir adsorption isotherm model was fitted well more than Freundlich isotherm adsorption model. Adsorption capacities of CMDS 1 was not different with CMDS 2 on aspect of amounts of arsenic adsorbed. The maximum adsorption amount of two CMDS were respectively 40.816, 39.682 mg/g. However, the kinetic of two CMDS was different. The kinetic was followed pseudo second order model than pseudo first order model. Concentrations of arsenic in all segments of the polymer in CMDS 2 does not have a constant value, but the rate was greater than the value of CMDS 1. Therefore, CMDS 2, which is containing polymer, is more effective for adsorbent to remove As(V).

키워드

참고문헌

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