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Removal of Silver from Aqueous Solution by <i>Azotobacter chroococcum</i> XU1 Biomass and Exopolysaccharide
Institute of Genetics and Plant Experimental Biology, Uzbekistan Academy of Sciences, Yukory Yuz, Uzbekistan
The Key Laboratory of Plant Resources and Chemistry of Arid Zone, China Xinjiang Technical Institute of Physics & Chemistry, Chinese Academy of Sciences, Urumqi, China
The Key Laboratory of Plant Resources and Chemistry of Arid Zone, China Xinjiang Technical Institute of Physics & Chemistry, Chinese Academy of Sciences, Urumqi, China
- 1 Institute of Genetics and Plant Experimental Biology, Uzbekistan Academy of Sciences, Yukory Yuz, Uzbekistan
- 2 The Key Laboratory of Plant Resources and Chemistry of Arid Zone, China Xinjiang Technical Institute of Physics & Chemistry, Chinese Academy of Sciences, Urumqi, China
- 3 The Key Laboratory of Plant Resources and Chemistry of Arid Zone, China Xinjiang Technical Institute of Physics & Chemistry, Chinese Academy of Sciences, Urumqi, China
Advances in Microbiology·Volume 05 (2015)·Pages 198–203·Published 3 March 2015·DOI10.4236/aim.2015.53019
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Abstract
Biosorption of silver ions onto A. chroococcum XU1 biomass and exopolysaccharide (EPS) was investigated. It was found that the overall biosorption process was the best when cell biomass and EPS were used together. Metal adsorption experiments showed that the final precipitate obtained by cell biomass and EPS, contained 7.85% of Ag. Based on the results presented in this study, the biomass and EPS of A. chroococcum XU1 indicated the possibility of application of them as biosorbent for removal of silver from waste waters.
Keywords<i>Azotobacter chroococcum</i>BiosorptionSilverCell BiomassExopolysaccharide
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