Preparation of Fe(III)-Coated Starfish and Evaluation of the Removal Capacity of Copper

3가철 코팅 불가사리 흡착제 제조 및 구리 제거 특성 평가

  • Yang, Jae-Kyu (School of Civil and Environmental Engineering, Kwandong University) ;
  • Yu, Mok-Ryun (School of Civil and Environmental Engineering, Kwandong University) ;
  • Lee, Seung-Mok (School of Civil and Environmental Engineering, Kwandong University)
  • 양재규 (관동대학교 토목.환경학부) ;
  • 유목련 (관동대학교 토목.환경학부) ;
  • 이승목 (관동대학교 토목.환경학부)
  • Received : 2005.11.23
  • Accepted : 2005.12.19
  • Published : 2006.01.30

Abstract

Fe(III)-Coated Star Fish (ICSF) was prepared by reaction of calcined Star Fish (SF) with Fe(III) solution at an elevated temperature. To investigate the stability of ICSF at acidic condition, dissolution of Fe was studied at pH 2 as a function of time. Extracted iron was negligible over the entire reaction time. This stability test suggests the applicability of ICSF in the treatment of wastewater even at low pH. Adsorption capacity of Cu(II) onto SF and ICSF was investigated in a batch and a column test. In the pH-edge adsorption, adsorption of copper onto SF and ICSF was quite similar over the entire pH range due to the presence of an important amount of Fe in SF itself. From the adsorption isotherm obtained with variation of the concentration of Cu(II), ICSF showed 1.6 times greater adsorption capacity than SF. Also, ICSF showed a greater removal capacity of Cu(II) in the column test.

Keywords

Acknowledgement

Supported by : 산업자원부

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