Paper Title:
Study on Biosorption of Heavy Metal Ion-Uranium by Citrobacter freudii
  Abstract

Biosorption has been developed as an effective and economic method to treat wastewater containing low concentrations of metal pollutants. In this study, a bacterium, Citrobacter freudii, was used as a biosorbent to adsorb uraniumions. The factors which influence the adsorption of uranium by Citrobacter freudii were investigated, including pH, the strain dosage and the initial concentrate of uranium. The results showed that the adsorption efficiency increased with the increased of pH in the beginning of the adsorption and reached its maximum at pH 6; when the strain dosage and the initial concentrate of uranium were 6.0g/L and 20mg/L, respectively, the adsorption efficiency reached 93.89% and 94.68%, respectively. The authors investigated the active sites of bacteria for biosorption and the results proved that carboxyl in the cell wall played an important role in biosorption.

  Info
Periodical
Advanced Materials Research (Volumes 183-185)
Chapter
Environmental Biotechnology
Edited by
Yanguo Shi and Jinlong Zuo
Pages
600-604
DOI
10.4028/www.scientific.net/AMR.183-185.600
Citation
J. Yang, J. Y. Du, S. B. Xie, K. Du, J. N. Song, Z. W. Lv, "Study on Biosorption of Heavy Metal Ion-Uranium by Citrobacter freudii", Advanced Materials Research, Vols. 183-185, pp. 600-604, 2011
Online since
January 2011
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Price
$32.00
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