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E. I. Denisov
E. I. Denisov
Ural Technical University
Ural Technical University
Yekaterinburg
Russia

Articles

Radioactive waste and irradiated nuclear fuel management
  • Date submitted
    2005-01-12
  • Date accepted
    2005-02-14
  • Date published
    2005-08-01

Development of technologies for production of sorbents for radionuclide extraction from spent nuclear fuel and methods of radiochemical analysis and decontamination of liquid radioactive waste

Article preview

New grades of inorganic sorbents based on natural materials and artificial materials (thermoxide sorbents) suitable for extraction of Cs-137 from liquid radioactive waste have been developed. The technology of selective extraction of Mo-99 from spent nuclear fuel for scientific and medical purposes using inorganic sorbents, previously developed by the Department of Radiochemistry of UGTU, has been optimized. Ag-sorbents based on thermoxide-5 carrier were developed and optimal conditions of I-131 extraction by these sorbents from aqueous solutions were determined. The technology of Mo-99 production was supplemented with a new stage of I-131 extraction from alkaline concentrate Mo-99 after desorption operation.

How to cite: Betenekov N.D., Voronina A.V., Denisov E.I., Zelenskaya M.L., Kudymov E.S., Nogovitsina E.V., Chopko N.N. Development of technologies for production of sorbents for radionuclide extraction from spent nuclear fuel and methods of radiochemical analysis and decontamination of liquid radioactive waste // Journal of Mining Institute. 2005. Vol. 166. p. 169-171.
Radioactive waste and irradiated nuclear fuel management
  • Date submitted
    2003-08-05
  • Date accepted
    2003-09-19
  • Date published
    2004-03-01

Development of technologies for manufacturing sorbents for separating radionuclides from nuclear fuel waste, as well as for developing methods of radiochemical analysis and decontamination of liquid radioactive waste

Article preview

The technology of selective extraction of molybdenum-99 from nuclear fuel waste for scientific and medical purposes with the use of inorganic sorbents has been developed. Inorganic sorbents based on titanium and zirconium hydroxides with anion-exchange properties were synthesized, their radiation stability and sorption properties with respect to uranium and molybdenum in sulfuric acid solutions were studied. In order to obtain Mo-99 concentrate of required radionuclide purity the sorption behavior of uranium and iodine in the process of Mo-99 extraction from solution fuel was studied. Work on synthesis and study of properties of sorbents based on natural aluminosilicates suitable for decontamination of liquid radioactive waste was continued.

How to cite: Voronina A.V., Denisov E.I., Zelenskaya M.L., Kudymov E.S. Development of technologies for manufacturing sorbents for separating radionuclides from nuclear fuel waste, as well as for developing methods of radiochemical analysis and decontamination of liquid radioactive waste // Journal of Mining Institute. 2004. Vol. 158. p. 172-174.
Safety problems of radiation, electromagnetic and other dangerous influence on people
  • Date submitted
    2002-08-26
  • Date accepted
    2002-09-12
  • Date published
    2003-03-01

Sorbents and filters based on them for radiochemical analysis and purification of drinking and waste water from radionuclides

Article preview

Technologies have been developed for producing inorganic sorbents suitable for treatment of radioactively contaminated wastewater and drinking water and for radiation monitoring of natural waters. Individual filters for drinking water treatment from radionuclides were developed and certified. Studies on the use of inorganic sorbents in the production of medical isotopes for disease diagnosis and radiotherapy of cancerous tumors have been initiated.

How to cite: Betenekov N.D., Voronina A.V., Denisov E.I., Kutergin A.S., Kutergina I.N. Sorbents and filters based on them for radiochemical analysis and purification of drinking and waste water from radionuclides // Journal of Mining Institute. 2003. Vol. 154. p. 9-11.