Journal of Environmental Science International (한국환경과학회지)

The Korean Environmental Sciences Society (한국환경과학회)
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Adsorption Characteristics of Cu, Zn and Cd by Granular Activated Carbon

입상활성탄에 의한 Cu, Zn, Cd 이온의 흡착 특성

  • 옥삼복 (대구기능대학 환경화학과) ;
  • 정용준 (대구기능대학 환경화학과) ;
  • 정승원 (경북대학교 고분자공학과) ;
  • 강운석 (서울시청 폐기물관리과)
  • Published : 2002.04.01
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Abstract

In this work, the characterization of adsorption of Cu, Zn and Cd on granular activated carbon in water has been studied. The factors that affect adsorption in boundary between activated carbon and wastewater are concentration, temperature, contact time, pH and so on. As the result of this study, the maximum adsorption amount of Cu occurred near pH 7, while that of Zn and Cd was near pH 9.6 and 10, respectively. As contact time and temperature are transformed, such factors as optimum contact time and temperature are taken into consideration in an adsorptive process of heavy metal because an adsorption and a reducing process occur. In isotherm of Freundlich, 1/n values of Cu, Cd capacity were between 0.16 and 0.5.

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