Applied Biochemistry and Biotechnology

, Volume 73, Issue 1, pp 43–50 | Cite as

Biosorption of heavy metal ions by immobilized zoogloea and zooglan

  • Dae-Hee Ahn
  • Yun-Chul Chung
  • Daewon Pak
Original Articles


ImmobilizedZoogloea and zooglan in calcium alginate-silica matrix was shown to have a high adsorption capacity for Cu and Cd ions. Our results showed that Cu-ion uptake in the presence of Ca and Mg ions can be enhanced using immobilizedZoogloea and zooglan. Heavy metal ion adsorption efficiency decreased in the following order: Cu > Cd > Zn > Cr. The adsorbed metal ions were desorbed completely using sulfuric acid. ImmobilizedZoogloea and zooglan which was repetitively regenerated adsorbed heavy metal ions without a loss of adsorption capacity.

Index Entries

immobilizedZoogloea and zooglan heavy metal adsorption regeneration of biomass packed-bed column 


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Copyright information

© Humana Press Inc 1998

Authors and Affiliations

  • Dae-Hee Ahn
    • 1
  • Yun-Chul Chung
    • 1
  • Daewon Pak
    • 1
  1. 1.Korea Institute of Science and TechnologyEnvironment Research CenterSeoulKorea

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