Abstract
The solids formation behavior in a simulated high level liquid waste (HLLW) was experimentally examined, when the simulated HLLW was treated in the ordinary way of actual HLLW treatment process. Solids formation conditions and mechanism were closely discussed. The solids formation during a concentration step can be explained by considering the formation of zirconium phosphate, phosphomolybdic acid and precipitation of strontium and barium nitrates and their solubilities. For the solids formation during the denitration step, at least four courses were observed; formation of an undissolved material by a chemical reaction with each other of solute elements (zirconium, molybdenum, tellurium) precipitation by reduction (platinum group metals) formation of hydroxide or carbonate compounds (chromium, neodymium, iron nickel, strontium, barium) and a physical adsorption to stable solid such as zirconium molybdate (nickel, strontium, barium).
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Purex Technical Manual, HW-31000 DEL, Hanford Atomic Products Operation, Mar. 1955.
Y. Kondo, M. Kubota, J. Nucl. Sci. Technol., 29 (1992) 140.
Y. Kondo, M. Matsumura, M. Kubota, J. At. En. Soc. Japan, 35 (1993) 317.
Y. Kondo, M. Matsumura, M. Kubota, J. Radioanal. Nucl. Chem., 177 (1994) 301.
Y. Kondo, M. Matsumura, M. Kubota, J. Radioanal. Nucl. Chem., 177 (1994) 310.
Y. Kondo, J. Radioanal. Nucl. Chem., 191 (1995) 115.
P. A. Anderson, Nucl. Technol., 47 (1980) 173.
D. O. Campbell, S. R. Buxton, Trans. Am. Nucl. Soc., 24 (1976) 232.
M. H. Lloyd, Trans. Am. Nucl. Soc., 24 (1976) 233.
M. H. Lloyd, Proc. Topical Meeting on the Plutonium Fuel Cycle, Bal Harbour, Florida, 1977.
M. Kubota, T. Fukase, J. Nucl. Sci. Technol., 17 (1980) 783.
B. S. M. Rao, E. Geniner, H. G. Muller, J. Reinhardt, D. Steinert, H. J. Ache, Microprobe Spectroscopy, 40 (1986) 330.
B. S. M. Rao, E. Gentner, J. Reinhardt, D. Steinert, H. J. Ache, J. Nucl. Material, 170 (1990) 39.
S. Music, M. Ristic, S. Popovic, J. Radioanal. Nucl. Chem., 134 (1989) 353.
A. Linz, Ind. Eng. Chem. Anal. Ed., 15 (1942) 459.
T. Izumida, F. Kawamura, J. Nucl. Sci. Technol., 27 (1990) 267.
W. F. Linke, Solubilities Inorganic and Metal-Organic Compounds, American Chemical Society, 1965.
M. Pourbaix, Atlas of Electrochemical Equilibria in Aqueous Solution, Pergamon Press, 1966.
A. Clearfield, R. H. Blessing, J. Inorg. Nucl. Chem., 34 (1972) 2643.
E. Montignie, Bull. Soc. Chim., 6 (1939) 672, 13 (1946) 176.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Kondo, Y., Kubota, M. Formation and filtration characteristics of solids generated in a high level liquid waste treatment process. J Radioanal Nucl Chem 221, 45–52 (1997). https://doi.org/10.1007/BF02035241
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF02035241