Abstract
Physicochemical properties of magnesium potassium phosphate (MPP) matrices for conservation of highly saline high-level liquid wastes (HLW) after their solidification at room temperature were studied comprehensively. The matrices showed high chemical stability to leaching of radionuclides and other components at various temperatures. The leaching indices of 239Pu, 237Np, 241Am, Sr, and Cs are in the range 12–14, and those of Tc, I, and Se, in the range 10–11. The mechanical strength (>20 MPa) and radiation resistance of the matrices and the chemical yield of radiolytically generated hydrogen (0.004 molecules/100 eV) were determined. The phase composition of the matrices and the character of radionuclide distribution in their bulk were determined. An enlarged installation was developed and fabricated at the Mayak Production Association, and solidification of simulated liquid radioactive wastes from this plant was performed in volumes of up to 2001.
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Singh, D., Wagh, A., Cunnane, J., and Mayberry, J., J. Environ. Health Sci. A, 1997, vol. 32, no. 2, pp. 527–541.
Singh, D., Mandalika, V.R., Parulekar, S.J., and Wagh, A.S., J. Nucl. Mater., 2006, vol. 348, no. 3, pp. 272–282.
Wagh, A., Strain, R., Jeong, S.Y., et al., J. Nucl. Mater., 1999, vol. 265, no. 3, pp. 295–307.
Aloy, A., Kovarskaya, E., Koltsova, T., et al., in Int. Conf. on Future Nuclear Systems “Global-99,” Jackson Hole, Wyoming (USA), CD version.
Kulyako, Yu.M., Vinokurov, S.E., Myasoedov, B.F., et al., Recent Advances in Actinide Sciences, Alvarez, R., Bryan, N.D., and May, I., Eds., Cambridge: Royal Soc. Chem., 2006, pp. 427–429.
Vinokurov, S.E., Kulyako, Y.M., Wagh, A.S., and Myasoedov, B.F., in Proc. Conf. on Knowledge-Based Materials and Technologies for Sustainable Chemistry, 2005, p. 124.
Vinokurov, S.E., Kulyako, Yu.M., Wagh, A.S., et al., Abstracts of Papers, II Mezhdunarodnyi simpozium “Razdelenie i kontsentrirovanie v analiticheskoi khimii i radiokhimii” (II Int. Symp. “Separation and Preconcentration in Analytical Chemistry and Radiochemistry”), Krasnodar, 2005, pp. 1–14.
Vinokurov, S.E., Kulyako, Yu.M., Tananaev, I.G., et al., Abstracts of Papers, V Rossiiskaya konferentsiya “Radiokhimiya-2006” (V Russian Conf. “Radiochemistry-2006”), Ozersk, 2006, p. 211.
Tananaev, I.V., Seifer, G.B., Kharitonov, Yu.Ya., et al., Khimiya ferrotsianidov (Chemistry of Ferrocyanides), Moscow: Nauka, 1971.
Ksenzenko, V.I. and Stasinevich, D.S., Khimiya i tekhnologia broma, ioda i ikh soedinenii (Chemistry and Technology of Bromine, Iodine, and Their Compounds), Moscow: Khimiya, 1979.
Analiticheskaya khimiya elementov. Selen i tellur (Analytical Chemistry of Elements. Selenium and Tellurium), Moscow: Nauka, 1971.
Wagh, A.S., Singh, D., and Jeong, S.-Y., Chemically Bonded Phosphate Ceramics for Stabilization and Solidification of Mixed Waste, Invited Review Article for Handbook of Mixed Waste Management Technology.
Slyunchev, O.M., Kozlov, P.V., Bobrov, P.A., et al., Abstracts of Papers, V Rossiiskaya konferentsiya “Radiokhimiya-2006” (V Russian Conf. “Radiochemistry-2006”), Ozersk, 2006, pp. 234–235.
ANSI/ANS-16.1-1986: Measurement of the Leachability of Solidified Low-Level Radiactive Wastes by a Short-Term Test Procedure, La Grange Park, IL: Am. Nat. Soc., 1986.
Environmental Protection Agency Method 1311. Toxicity Characteristic Leaching Procedure (TCLP), Rev. 0.1992.
ASTM Standard C 1285-94: Standard Test Methods for Determining Chemical Durability of Nuclear Waste Glasses: The Product Consistency Test (PCT), Philadelphia, PA: ASTM, 1994.
GOST (State Standard) R 50926-96: Solidified High-Level Wastes. General Technical Requirements, Moscow: Izd. Standartov, 1996.
US EPA, 40 CFR Part 268.45 for Treated Wastes, 1994.
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Original Russian Text © S.E. Vinokurov, Yu.M. Kulyako, O.M. Slyunchev, S.I. Rovnyi, A.S. Wagh, M.D. Maloney, B.F. Myasoedov, 2009, published in Radiokhimiya, 2009, Vol. 51, No. 1, pp. 56–62.
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Vinokurov, S.E., Kulyako, Y.M., Slyunchev, O.M. et al. Magnesium potassium phosphate matrices for immobilization of high-level liquid wastes. Radiochemistry 51, 65–72 (2009). https://doi.org/10.1134/S1066362209010159
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DOI: https://doi.org/10.1134/S1066362209010159