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The effect of phosphate melt cooling rate on phase composition and leach resistance of final waste form

  • Konstantin V. Martynov (a1), Elena V. Zakharova (a1), Sergey V. Stefanovsky (a1) and Boris F. Myasoedov (a1)

Abstract

Slow cooling of phosphate melt at liquid nuclear waste solidification yields glass-crystalline material. Partial crystallization during melt solidification results in elemental partitioning among crystalline phase and glass: Al, Cr, Fe are concentrated in the crystalline phosphate phase while Ca, Ni, La, U enter predominantly in the residual glass. Glass dissolution rate and leach rate of La and U as rare earth and actinide surrogates depends strongly on the glass composition, for example reduction of Al2O3 content in the glass to ∼10-12 wt.% increases leachability by three orders of magnitude as compared to the glass with specified composition (∼18-22 wt.% Al2O3).

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1.Ojovan, M.I. and Lee, W.E., An Introduction to Nuclear Waste Immobilisation, (Elsevier Ltd, Amsterdam, 2005).
2.Plaisted, T. J., Mo, F., Wilson, B. K., Young, C., and Hrma, P.. Ceram. Trans. 119, 317 (2001).
3.Izak, P., Hrma, P., Arey, B. W., and Plaisted, T. J... J. Non-Cryst. Solids 289, 17 (2001).
4.Kobelev, A.P., Stefanovsky, S.V., Lashchenova, T.N., Zakharenko, V.N., Polkanov, M.A., Knyazev, O.A., Herman, C.C., Bickford, D.F., Holtzscheiter, E.W., ICEM’05: The 10th International Conference on Environmental Remediation and Radioactive Waste Management, September 4-8, 2005 (Scottish Exhibition & Conference Centre, Glasgow, Scotland, 2005) ICEM05-1222.
5.Kobelev, A.P., Stefanovsky, S.V., Zakharenko, V.N., Polkanov, M.A., Knyazev, O.A., Lashchenova, T.N., Vlasov, V.I., Herman, C.C., Bickford, D.F., Holtzscheiter, E.W., Goles, R.W., Gombert, D., Waste Management ’05 Conference, February 27 – March 3, 2005 (Tucson, AZ, 2005).
6.Lutze, W., Radioactive Waste Forms for the Future, edited by Lutze, W and Ewing, R.C., (Elsevier, Amsterdam, 1988), p. 159.
7.Hayward, P.J., Radioactive Waste Forms for the Future, Lutze, W and Ewing, R.C. (eds.), Elsevier, 1988) pp. 429493.
8.Caurant, D., Loiseau, P., Majérus, O., Aubin-Chevaldonnet, V., Bardez, I. and Quintas, A., Glasses, Glass-Ceramics and Ceramics for Immobilization of Highly Radioactive Nuclear Wastes (Nova Science Publishers, Inc., 2009).
9.Malinina, G.A., Stefanovsky, O.I., Stefanovsky, S.V., J. Nucl. Mater. 416, 230 (2011).
10.Vance, E.R., Stewart, M.W.A., Moricca, S., Mater. Res. Soc. Symp. Proc. 1475, 163 (2012).
11.Phosphate Glasses with Radioactive Wastes, edited by Vashman, A.A. and Polyakov, A.S., (Tsniiatominform, 1997, in Russian).
12.Honma, T., Sato, A., Ito, N., Nogashi, T., Shinozali, K., Komatsu, T., J. Nob-Cryst. Solids. 404, 26 (2014).
13.Moguš-Milanković, A., Šantić, A., Pavić, L., Sklepić, K., Croat. Chem. Acta. 88, 553 (2015).
14.Stefanovsky, S.V., Stefanovskaya, O.I., Kadyko, M.I., Nikonov, B.S., and Myasoedov, B.F., Radiochemistry. 58, 654 (2016).
15.Polyakov, A.S., Borisov, G.B., Moiseenko, N.I., Osnovin, V.I., Atomic Energy 76, 181 (1994).
16.Martynov, K.V., Budantseva, N.A., Tananaev, I.G., Kovalskiy, A.M., Kotelnikov, A.R., Bulletin of the Department of Earth Sciences of the RAS, NZ60723 (2011). doi:10.2205/2011NZ000202 (in Russian).
17.Hespe, E.D., Atomic Energy Review. 9, 195 (1971)
18.Martynov, K.V., Konstantinova, L.I., Konevnik, Yu.V., Zakharova, E.V., Issues Radiat. Safety [2] 43 (2014) (in Russian).
19.de la Rochère, M, Kahn, A., d’Yvoire, F., Bretey, E., Mat. Res. Bull. 20, 27 (1985).

Keywords

The effect of phosphate melt cooling rate on phase composition and leach resistance of final waste form

  • Konstantin V. Martynov (a1), Elena V. Zakharova (a1), Sergey V. Stefanovsky (a1) and Boris F. Myasoedov (a1)

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