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Biosorption of heavy metal ions by immobilized zoogloea and zooglan

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Abstract

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.

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Authors and Affiliations

  1. Korea Institute of Science and Technology, Environment Research Center, Cheongryang, P. O. Box 131, Seoul, Korea

    Dae-Hee Ahn, Yun-Chul Chung & Daewon Pak

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  1. Dae-Hee Ahn
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  2. Yun-Chul Chung
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  3. Daewon Pak
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Ahn, DH., Chung, YC. & Pak, D. Biosorption of heavy metal ions by immobilized zoogloea and zooglan. Appl Biochem Biotechnol 73, 43–50 (1998). https://doi.org/10.1007/BF02788832

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  • DOI: https://doi.org/10.1007/BF02788832

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