Journal of Korean Society of Water and Wastewater (상하수도학회지)

The Korean Society of Water and Wastewater (대한상하수도학회)
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Adsorption removal of p-xylene by organo-clays

유기점토를 이용한 p-자일렌 흡착 제거

  • Cho, Yunchul (Dept. of Environmental Engineering, Daejeon University) ;
  • Kim, Taesung (Dept. of Civil Engineering, The University of Suwon) ;
  • Han, Sunkee (Dept. of Environmental Health, Korea National Open University) ;
  • Lee, Chaeyoung (Dept. of Civil Engineering, The University of Suwon)
  • 조윤철 (대전대학교 환경공학과) ;
  • 김태성 (수원대학교 토목공학과) ;
  • 한선기 (한국방송통신대학교 환경보건학과) ;
  • 이채영 (수원대학교 토목공학과)
  • Received : 2012.08.13
  • Accepted : 2012.11.12
  • Published : 2012.12.15
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Abstract

The purpose of this study was to investigate adsorption characteristics of organo-clays for removal of p-xylene. As part of efforts to examine the adsorption capacities of some organo-clays for p-xylene, batch isotherm tests were carried out. Organo-clay minerals were synthesized under hydrothermal conditions using Na-montmorillonite as host clay and dimethyldioctadecylammonium (DMDA) bromide and benzyldimethyldodecylammonium (BDDA) chloride as organic surfactants, respectively. All synthetic organo-clay minerals were characterized by powder x-ray diffraction (XRD), scanning electron microscope (SEM) and energy-dispersive x-ray spectroscopy (EDX). The modification using dimethyldioctadecylammonium (DMDA) bromide showed the higher adsorption ability for p-xylene than benzyldimethyldodecylammonium (BDDA) chloride. On the other hand, the maximum adsorption capacity, $Q_{max}$ of DMDA modified montmorillonite estimated by Langmuir model was 27.0 mg/g, which was the higher value than other organo-clays.

Keywords

References

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