Biosorption of Metal Ions by Exopolysaccharide Produced by Azotobacter chroococcum XU1

This paper deals with adsorption of Pb and Hg on the exopolysaccharide produced by Azotobacter chroococcum XU1. The adsorption of metal ions was significantly affected by the pH of metal solutions (Pb(NO3)2 and Hg(NO3)2), metal ions concentration and exopolysaccharide concentrations. At optimum pH t...

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Bibliographic Details
Published in:Journal of environmental protection (Irvine, Calif.) Calif.), 2013-09, Vol.4 (9), p.989-993
Main Authors: Rasulov, Bakhtiyor A., Yili, Abulimiti, Aisa, Haji A.
Format: Article
Language:English
Subjects:
Azotobacter chroococcum
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Summary:This paper deals with adsorption of Pb and Hg on the exopolysaccharide produced by Azotobacter chroococcum XU1. The adsorption of metal ions was significantly affected by the pH of metal solutions (Pb(NO3)2 and Hg(NO3)2), metal ions concentration and exopolysaccharide concentrations. At optimum pH the uptakes of the metals were 40.48% and 47.87% respectively. The metal ions biosorption was high at 4, 5-5.
ISSN:2152-2197
2152-2219
DOI:10.4236/jep.2013.49114