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Metals biosorption by sodium alginate immobilizedChlorella homosphaera cells

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Summary

Cadmium and zinc biosorption, alone or in combination, was investigated with sodium alginate immobilizedChlorella homosphaera cells. Concentrations ranging from 20.0 to 41.0mg/l cadmium, 75.0 and 720.0mg/l zinc were tested and, in all cases, the metal removal achieved values near 100%. When these metals were put in combination a decrease in the rate of absorption was detected. Gold was also tested in the immobilized system and 90% of the initial metal added was recovered in a solution containing 213.0mg/l of the metal, the alginic matrix being responsible for 40% gold uptake.

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Authors and Affiliations

  1. Centro de Tecnologia Mineral-CETEM/CNPq, Cidade Universitária, Rua 4, Quadra D, 21949, Rio de Janeiro, RJ, Brasil

    Antonio Carlos Augusto da Costa

  2. Escola de Química. Dept. de Eng. Bioquímica, Universidade Federal do Rio de Janeiro, 21949, Rio de Janeiro, RJ, Brasil

    Selma Gomes Ferreira Leite

Authors
  1. Antonio Carlos Augusto da Costa
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  2. Selma Gomes Ferreira Leite
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da Costa, A.C.A., Leite, S.G.F. Metals biosorption by sodium alginate immobilizedChlorella homosphaera cells. Biotechnol Lett 13, 559–562 (1991). https://doi.org/10.1007/BF01033409

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  • DOI: https://doi.org/10.1007/BF01033409

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