2017. - V. 31. - N 10(191). - P. 7-9
P.G. Zelenin, E.A. Tyupina, V. V. Milyutin,
During the research, several samples of fine composite ferrocyanide sorbents were synthesized and their sorption properties were analyzed. As a result, the sorbent with stable caesium in its composition exhibits greater selectivity towards caesium radionuclides. The value of its partition coefficient in strongly alkaline solution resulted to be three orders of magnitude higher than the others. A test was made to extract 137Сs from standard test solution of the residuum of a nuclear power station and from the solution with 1 mole per liter of sodium nitrat. Based on the results, the dissolution of the sorbent reduces the values of partition and decontamination coefficients for/in/with the application of small samples. The sorption properties of the sorbent with ferrocyanide nickel-caesium basis on the diatomite were compared with synthesized samples of the sorbent with Termoksid-35. The sorbent modified by stable caesium exhibits the better sorption properties towards caesium radionuclides.
First page of the article:
cesium ferrocyanide sorbents highly concentrated saline solution selectivity Termoksid-35 the decontamination factor коэффициент очистки селективность сорбция Термоксид-35 ферроцианидные сорбенты цезий