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Removal of uranium from solution using residual brewery yeast: Combined biosorption and precipitation

Biomedical Sciences Research Institute Computer Science Research Institute Environmental Sciences Research Institute Nanotechnology & Advanced Materials Research Institute

Riordan, C, Bustard, M, Putt, R and McHale, AP (1997) Removal of uranium from solution using residual brewery yeast: Combined biosorption and precipitation. BIOTECHNOLOGY LETTERS, 19 (4). pp. 385-387. [Journal article]

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DOI: 10.1023/A:1018367304767


Whilst unwashed preparations of biomass from a local brewery had an apparent maximum biosorption capacity for uranium of 360 mg/g (dry weight biomass) washing reduced this maximum to 150 mg/g. Homogenization of both biomass preparations and recovery of cellular debris had no significant effect on the maximum biosorption capacities although at lower equilibrium concentrations of uranium differences in the biosorption capacities were detected. When unwashed biomass was retained by a semi-permeable membrane 40% of uranium used in the experiments precipitated outside that membrane. Therefore a significant proportion of the uranium removed from solution, and previously attributed to biosorption by the yeast biomass, resulted from precipitation brought about by interaction with low molecular weight components loosely associated with the biomass.

Item Type:Journal article
Faculties and Schools:Faculty of Life and Health Sciences
Faculty of Life and Health Sciences > School of Pharmacy and Pharmaceutical Science
Research Institutes and Groups:Biomedical Sciences Research Institute
Biomedical Sciences Research Institute > Pharmaceutical Science and Practice
ID Code:21522
Deposited By:Professor Anthony McHale
Deposited On:28 Mar 2012 16:19
Last Modified:04 Dec 2012 11:45

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