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has been cited by the following article:

• TITLE: Biosorption of Metal Ions by Exopolysaccharide Produced by Azotobacter chroococcum XU1

  AUTHORS: Bakhtiyor A. Rasulov, Abulimiti Yili, Haji A. Aisa

  KEYWORDS: Azotobacter chroococcum XU1; Exopolysaccharide; Biosorption; Lead; Mercury

  JOURNAL NAME: Journal of Environmental Protection, Vol.4 No.9, September 11, 2013

  ABSTRACT: 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.