Abstract
At the treatment of HLLW (high-level liquid radioactive waste) by oxalate precipitation, the filtrate is occured as a waste. But various elements including Cs and Sr are contained in the oxalate filtrate. It is very important, therefore, to separate from each other in a viewpoint of ultimate isolation of heat generating nuclides such as Cs and Sr from HLLW. In this study, the simulated oxalate filtrate, consisted of five elements (Cs, Sr, Ru, Fe and Mo) and organics (oxalic acid and ascorbic acid), was prepared, from which the separation of Cs and Sr was carried out by neutralization with NaOH. As a result, the simulated solution could be divided into Cs, Sr and Ru containing groups with pH. Sr was readily precipitated as forms of Sr(C2O4)·nH2O at pH 3. Iron and ruthenium were also co-precipitated around pH 8, and Cs and Mo remained in the resulting solution.
References
IAEA Technical Reports Series No. 214; Evaluation of Actinide Partitioning and Transmutation, IAEA, Vienna, 1982.
T. Kobayashi, Y. Morita, M. Kubota, Development of partitioning Method: Method of precipitating Transuranium Elements with oxalic acid, JAERI-M88-026, 1988, Japanese.
D. T. Rankin, G. A. Burney, P. K. Smith, R. D. Sission, Jr., Ceramic Bull., 56 (1977) 478.
C. W. Forsberg, Nucl. Technol., 49 (1980) 243.
E. H. Kim, D. Y. Chung, W. H. Kim, Y. J. Shin, E. H. Lee, J. H. Yoo, C. S. Choi, J. Nucl. Sci. Tech., 34 (1977) No. 4.
M. Kubota, T. Fukase, J. Nuclear Sci Tech., 17 (1980) 783.
E. H. Kim, Y. J. Shin, W. H. Kim, D. Y. Chung, S. S. Kim, J. H. Yoo, C. S. Choi, Korean J. Chem. Eng., 12 (1995) 557.
E. H. Lee, D. S. Hwang, K. W. Kim, Y. J. Shin, J. H. Yoo, J. Korean Ind. Eng. Chem., 6 (1995) 404.
D. Y. Chung, E. H. Kim, Y. J. Shin, J. H. Yoo, J. D. Kim, J. Radioanal. Nucl. Chem., 204 (1996) 265.
J. W. Roddy, Utilization of Zeolites for the Removal of Radioactivity from Liquid Waste Streams, ORNL TM-7782, 1981.
H. Mimura, K. Akiba, K. Kawamura, J. Nucl. Sci. Tech., 31 (1994) 463.
S. G. Kwon, E. H. Kim, E. H. Lee, K. I. Lee, J. H. Yoo, Hwahak Konghak, 34 (1996) 570 (in Korean).
J. C. Posey, Process for the Recovery of Cm-244 from Nuclear Waste ORNL-5687, 1980.
C. E. Crouthamel, D. S. Martin, Jr., J. Am. Chem. Soc., 13 (1951) 569.
A. Agrawal, I. Rao, C. Gupta, S. K. Mishra, P. D. Sharma, P. Parasher, Topics in Chemistry Series, Vol. 1,K. S. Gupta, (Ed.) (1991), p. 315.
R. E. Kirk, D. F. Othmer, Encyclopedia of Chemical Technology, Vol. 24, 3rd ed., Wiley, New York, 1980, p. 13.
C. F. Baes, Jr., R. E. Mesmer, The Hydrolysis of Cations, Robert E. Krieger Pub. Co., Malabar, Florida, 1986.
IAEA Technical Reports Series No. 337. Chemical Precipitation Process for the Treatment of Aqueous Radioactive Waste, IAEA, Vienna, 1992.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Kim, E.H., Yoo, J.H. On the separation of cesium and strontium from oxalate filtrate by neutralization. J Radioanal Nucl Chem 219, 131–134 (1997). https://doi.org/10.1007/BF02040281
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF02040281