Coal Fly Ash Cenospheres For Immobilization Of Alkaline Radioactive Waste In Mineral-Like Compounds
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About The Author

Tatiana Vereshchagina currently works at the Thermophysical Department of the Institute for Physics and Power Engineering A.I. Leypunsky. Tatiana does research in Acoustic Engineering. The current research interests are: heat pipes in atomic energy, knowledge management.

                       

Coal Fly Ash Cenospheres For Immobilization Of Alkaline Radioactive Waste In Mineral-Like Compounds

Alkaline high-level wastes are produced in nuclear fuel reprocessing plants as a result of the neutralization of initially acidic solutions with sodium hydroxide. The typical neutralized alkaline wastes are tank supernatants in the United States at DOE sites (Hanford, Savannah River, Oak Ridge) having the actual NaOH concentration of 0.75 to 7 M. Radioactive alkaline solutions are also generated when decommissioning fast neutron reactors, which utilize liquid sodium or a sodium-potassium blend as a coolant of a primary circuit. Large quantities...

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