Journal of Korean Society of Water and Wastewater (상하수도학회지)

The Korean Society of Water and Wastewater (대한상하수도학회)
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Biosorption Characteristics of Lead (II) Using Zoogloea ramigera 115SLR

Zoogloea ramigera 115SLR을 이용한 납 생물흡착특성

  • 김성현 (명지대학교 환경생물공학과) ;
  • 송훈 (명지대학교 환경생물공학과) ;
  • 손석일 (명지대학교 환경생물공학과) ;
  • 임인권 (명지대학교 기계공학과) ;
  • 정욱진 (명지대학교 환경생물공학과)
  • Received : 2005.09.06
  • Accepted : 2006.01.25
  • Published : 2006.02.15
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Abstract

Biosorption characteristics were investigated at various temperature and pH conditions in order to establish lead(II) removal using Zoogloea ramigera 115SLR. Biosorption equilibrium isotherms and kinetics were obtained from batch experiments. The Freundlich and Langmuir model could be described the biosorption equilibrium of lead(II) on Z. ramigera 115SLR, Ca-alginate bead and immobilized Z. ramigera 115SLR. The maximum biosorption capacity of Z. ramigera 115SLR increased from 325 to 617mg $pb^{2+}/g$ biomass as temperature increased from 288.15 K to 308.15K from the Langmuir model. Fixed-bed column breakthrough curves for lead(II) removal were also obtained. For regeneration of the biosorbent, complete lead(II) desorption was achieved using 5mM HCl in fixed-bed column. This study shows the possibilities that well-treated immobilized Z. ramigera 115SLR with the mechanical intensity like TEOS (Tetraethyl orthosilicate) treatment and the optimum acid solution for desorption can be used for the effective treatment for lead(II) containing wastewater.

Keywords

References

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