Radionuclide 106Ru behavior in aqueous solutions by ion exchange, ultrafiltration, and centrifugation methods
https://doi.org/10.29235/1561-8331-2021-57-3-331-339
Abstract
The paper presents the results of 106Ru radionuclide behavior regularities study in aqueous solutions in a wide pH range by ultrafiltration, ion exchange and centrifugation methods. The regions of 106Ru various species existence in solution have been established: cationic 106Ru species at pH < 3.5; the transition region of non-ionic species formation in the range of pH 3.5–4.2 and the region of non-ionic species predominant formation at pH > 4.2. A characteristic feature of the studied solutions is the formation of non-ionic particles by microconcentrations of 106Ru via pseudocolloids at lower pH values as compared to ruthenium solutions with a concentration of 10-6–10-4 mol/dm3. The established regularities of the behavior of ruthenium radionuclides can be utilized to increase the efficiency of ion exchange and membrane separation methods at nuclear and radiation facilities for technological solutions and liquid radioactive waste treatment.
About the Authors
O. B. Korenkova
The Joint Institute for Power and Nuclear Research – Sosny of the National Academy of Sciences of Belarus
Belarus
Belarus
Olga B. Korenkova – Junior Researcher
47/22, Prilesye district, Lugovaya sloboda village council, Minsk district, 223063, Minsk region
A. V. Radkevich
The Joint Institute for Power and Nuclear Research – Sosny of the National Academy of Sciences of Belarus
Belarus
Belarus
Artyom V. Radkevich – Scientific Secretary
47/22, Prilesye district, Lugovaya sloboda village council, Minsk district, 223063, Minsk region
N. I. Voronik
The Joint Institute for Power and Nuclear Research – Sosny of the National Academy of Sciences of Belarus
Belarus
Belarus
Nadezhda I. Voronik – Ph. D. (Chemistry), Leading Researcher
47/22, Prilesye district, Lugovaya sloboda village council, Minsk district, 223063, Minsk region
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