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The mechanism of uranium biosorption by Rhizopus arrhizus
Abstract
Biosorption of elements is a little understood phenomenon exhibited by some types of even nonliving microbial biomass. A common fungus Rhizopus arrhizus has been reported to take up uranium from aqueous solutions to the extent of 180 mg U 6+/g. The mechanism of uranium sequestering by this type of biomass was studied by using experimental techniques such as electron microscopy, x‐ray energy dispersion analysis, IR spectroscopy, and supporting evidence was obtained for a biosorption mechanism consisting of at least three processes. Uranium coordination and adsorption in the cell‐wall chitin structure occur simultaneously and rapidly whereas precipitation of uranylhydroxide within the chitin microcrystalline cell‐wall structure takes place at a lower rate. Interference of Fe 2+ and Zn 2+ coions with uranium biosorption is indicated.
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Cited by
Removal of copper(II) ions from aqueous solution onto chitosan and cross-linked chitosan beads
Wan Ngah, W. S., Endud, C. S., & Mayanar, R. (2002) · Reactive and Functional Polymers · doi:10.1016/s1381-5148(01)00113-4 · Cited by 938
Heavy metal biosorption sites in Aspergillus niger
Kapoor, A., & Viraraghavan, T. (1997) · Bioresource Technology · doi:10.1016/s0960-8524(97)00055-2 · Cited by 448
Macaskie, L. E. (1991) · Critical Reviews in Biotechnology · doi:10.3109/07388559109069183 · Cited by 234
Bioremediation of Radionuclide-Containing Wastewaters
Lloyd, J. R., & Macaskie, L. E. (2014) · Environmental Microbe-Metal Interactions · doi:10.1128/9781555818098.ch13 · Cited by 109
Metadata
- Authors
- Tsezos, M., & Volesky, B.
- Venue
- Biotechnology and Bioengineering
- Publisher
- Wiley
- Published
- 1982-02
- Volume
- 24
- Issue
- 2
- Pages
- 385-401
- ISSN
- 0006-3592 (ISSN-L)
- 1097-0290
- OpenAlex
- W2130381669
- Cited by
- 356
- References
- 0
- FWCI
- 7.11
- Type
- journal article
- Language
- en
- Open access
- closed
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- Tsezos, M., & Volesky, B. (1982). The mechanism of uranium biosorption by Rhizopus arrhizus. Biotechnology and Bioengineering. https://doi.org/10.1002/bit.260240211
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