한국환경과학회지 (Journal of Environmental Science International)

  • 제29권8호
  • /
  • Pages.827-835
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  • 2020
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  • 1225-4517(pISSN)
  • /
  • 2287-3503(eISSN)
한국환경과학회 (The Korean Environmental Sciences Society)
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산업폐기물로부터 합성된 제올라이트 물질의 망간 이온 흡착속도 및 등온흡착 특성

Adsorption Kinetic and Isotherm Characteristics of Mn Ions with Zeolitic Materials Synthesized from Industrial Solid Waste

  • 최정학 (부산가톨릭대학교 환경공학과) ;
  • 이창한 (부산가톨릭대학교 환경행정학과)
  • Choi, Jeong-Hak (Department of Environmental Engineering, Catholic University of Pusan) ;
  • Lee, Chang-Han (Department of Environmental Adminstration, Catholic University of Pusan)
  • 투고 : 2020.06.10
  • 심사 : 2020.06.25
  • 발행 : 2020.08.31
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초록

Zeolite material having XRD peaks of Na-A zeolite in the 2θ range of 7.18 to 34.18 can be synthesized from the waste catalyst using a fusion/hydrothermal method. The adsorption rate of Mn ions by a commercial Na-A zeolite and the synthesized zeolitic material increased as the adsorption temperature increased in the range of 10 ~ 40℃. The adsorption of Mn ion were very rapid in the first 30 min and then reached to the equilibrium state after approximately 60 min. The adsorption kinetics of Mn ions by the commercial Na-A zeolite and the zeolitic material were found to be well fitted to the pseudo-2nd order kinetic model. Equilibrium data by the commercial Na-A zeolite and the zeolitic material fit the Langmuir, Koble-Corrigan, and Redlich-Peterson isotherm models well rather than Freundlich isotherm model. The removal capacity of the Mn ions by the commercial Na-A zeolite and the zeolitic material obtained from the Langmuir model was 135.2 mg/g and 128.9 mg/g at 30℃, respectively. The adsorption capacity of Mn ions by the synthesized zeolitic material was almost similar to that of commercial Na-A zeolite. The synthesized zeolitic material could be applied as an economically feasible commercial adsorbent.

키워드

참고문헌

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