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Porous Crystalline Silica (Gubka) as a Inorganic Support Matrix for Novel Sorbents

Published online by Cambridge University Press:  21 March 2011

T. J. Tranter ,
A. S. Aloy ,
N. V. Sapozhnikova ,
D. A. Knecht  and
T. A. Todd
T. J. Tranter
Affiliation:
Idaho National Engineering and Environmental Laboratory, Idaho Falls, Idaho
A. S. Aloy
Affiliation:
V.G. Khlopin Radium Institute, St. Petersburg, Russia
N. V. Sapozhnikova
Affiliation:
V.G. Khlopin Radium Institute, St. Petersburg, Russia
D. A. Knecht
Affiliation:
Idaho National Engineering and Environmental Laboratory, Idaho Falls, Idaho
T. A. Todd
Affiliation:
Idaho National Engineering and Environmental Laboratory, Idaho Falls, Idaho
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Abstract

Inorganic ion exchange media typically exist as fine powders, making large-scale use impractical, unless the media can be affixed to an appropriate matrix. Likewise, organic chelating agents are typically dissolved in a solvent and absorbed into porous matrices for use in extraction chromatography. The most common matrices utilized in both cases are organic materials, that are not compatible with high radiation fields or acceptable as final waste forms. Recent investigations have shown that ion exchange sorbents can be effectively loaded within a porous crystalline silica (Gubka) matrix. This approach allows for target radionuclides to be adsorbed into a porous micro-crystalline glass matrix which encapsulates the contaminant and becomes the final waste form. Subsequent to adsorption of the radionuclides, the Gubka matrix can be compressed in a hot uniaxial press, resulting in an even greater volume reduction. The porous glass matrix is produced in Russia using fly ash residue from coal combustion power generating plants. It consists of consolidated arrays of hollow glass cenospheres and is termed Gubka which is the Russian word for sponge. This paper describes results of a collaborative research program between the Khlopin Radium Institute, St.Petersburg, Russia, the Institute of Chemistry and Chemical Technologies, Krasnoyarsk, Russia, the Mining and Chemical Combine, Zheleznogorsk, Russia, and the Idaho National Engineering and Environmental Laboratory. Ammonium molybdophosphate (AMP) for the removal of cesium from acidic liquid waste has been successfully incorporated into Gubka matrices. Test results for cesium removal, using AMP-Gubka, are discussed.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 713: Symposium JJ – Scientific Basis for Nuclear Waste Management XXV , 2002 , JJ11.68
Copyright
Copyright © Materials Research Society 2002

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References

REFERENCES

1. Smit, J van R., “Insoluble Heteropolyacid Salts,” Inorganic Ion Exhangers in Chemical Analysis Qureshi, M. and Varshney, K.G. (Eds.), pp. 68–69, CRC Press, Boston, 1991.Google Scholar
2. Suss, M. and Pfrepper, F., “Investigation of the Sorption of Cesium from Acidic Solutions by Various Inorganic Sorbents,” Radiochimica Acta, 29, pp. 33–40, (1981).Google Scholar
3. Wilding, M.W., “Cesium Removal From Acidic Radioactive Waste Solutions,” IDO-14544, Idaho Falls, Idaho, 1961.Google Scholar
4. Rao, K.L.N., Shukla, J.P., Venkataramani, B., “Electron Irradiation Studies on Ammonium Molybdophosphate,” J. Radioanal. Nuc.Chem., Articles, 189(1), pp. 107–114, (1995).Google Scholar
5. Aloy, A.S., Anshits, A.G., Knecht, D.A., Tranter, T.J., Tretyakov, A.A., Macheret, J., “Development and Testing of a New Porous Crystalline Matrix (Gubka) for Stabilizing Actinide Solutions,” Scientific Basis for Nuclear Waste Management XXIII, Mat. Res. Soc. Symp. Proc., Vol. 608, pp. 637–642 (2000).Google Scholar
6. Knecht, D.A., Tranter, T.J., Aloy, A.S., Anshits, A.G., Tretyakov, A.A., Macheret, J., “Progress in Development of Porous Crystalline Matrix (Gubka) for Stabilizing Liquid Waste Solutions”, Proceedings of Waste Management 2001, Tucson AZ, March (2001).Google Scholar
7. Anshits, A.G., Aloy, A.S., Tretyakov, A.A., Knecht, D.A., Tranter, T.J., Sharanova, O.M., Vereshchagina, T.A., Zykova, I.D., Sapozhnikova, N.V., Strelnikov, A.V., Macheret, J., “Development and Characteristics of a New Porous Crystalline (Gubka) Matrix for Stabilizing Radioactive and Hazardous Solutions,” Scientific Basis for Nuclear Waste Management XXIV, Mat. Res. Soc. Symp. Proc.,in press (2001).Google Scholar
8. Tranter, T.J.et al., “Ion-Selective Glass Crystalline Microspheres by Impregnation with Selective Sorbents,” Invention Disclosure, DOE Case No. S-97, 170, (2001).Google Scholar
9. Tranter, T.J., Herbst, R.S., Todd, T.A., Olson, A.L., Eldredge, H.B., “Evaluation of Ammonium molybdophosphate-Polyacrylonitrile (AMP-PAN) as a Cesium Selective Sorbent for the Removal of Cs-137 from Acidic Nuclear Waste Streams,” Advances in Environmental Research, in press (2001).Google Scholar