Abstract
The possibility of simultaneous removal of 60Co and 137Cs from simulated NPP bottom residues by coprecipitation with the solid phase of K, Fe, and Ni ferrocyanides was examined. In coprecipitation of 60Co and 137Cs with the KFe[Fe(CN)6] solid phase, the degree of removal of the radionuclides from simulated bottom residue containing 300 g L−1 NaNO3 and 3.4 × 10−5 M EDTA does not exceed 80% for 60Co and 99% for 137Cs. The scheme based on coprecipitation of the radionuclides with the solid phase of K+, Fe3+, and Ni2+ ferrocyanides, formed by successive addition of K4[Fe(CN)6], Fe(NO3)3, and Ni(NO3)2 to the solution, ensures efficient removal of 60Co and 137Cs from simulated bottom residue containing simultaneously up to 400 g·L−1 NaNO3 and 3.4 × 10−5 M EDTA. The radionuclides are removed to more than 99%.
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Original Russian Text © S.A. Kulyukhin, N.A. Konovalova, M.P. Gorbacheva, I.A. Rumer, 2014, published in Radiokhimiya, 2014, Vol. 56, No. 4, pp. 342–346.
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Kulyukhin, S.A., Konovalova, N.A., Gorbacheva, M.P. et al. Removal of 60Co and 137Cs from simulated NPP bottom residues on the solid phase of K+, Ni2+, and Fe3+ ferrocyanides. Radiochemistry 56, 404–409 (2014). https://doi.org/10.1134/S1066362214040080
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DOI: https://doi.org/10.1134/S1066362214040080