Radionuclides behavior in natural water estimate based upon determination physicochemical state of their stable chemical analogs / Polyakov E.V., Khlebnikov N.A., Surikov V.T., Trapesnikov A.V., Udachin V.N., Remez V.P. // Radioprotection. - 2009. - V. 44, l. 5. - P. 209-215.

ISSN:

00338451

Type:

Conference Paper

Abstract:

The physicochemical state of radionuclides of Sr, U, REE and Th(IV) and their natural analogs in the river Techya (Chelyabinsk reg., RF) is analyzed in connection with seasonal variations of the chemical composition of water. It is shown that the chemical state of Sr(II) and U(VI) strongly depends on the level of CO2 in the river water. A high level of soluble carbonate leads to co-precipitation of to 10-15% Sr(II) and to 20% U(VI) on the surface of mineral (Ca - Si - Al - O + Fe - O phase mixture) and biological suspensions with the size of >3 micron. The rest of Sr(II) exists in the river water in the form of aquacations. Uranium (VI) is present in the water as a set of hydroxo- and carbonate complexes which do not interact with the cation-exchanger and in the form of Ca2UO2(CO3)3 which may be involved in the ionexchange interaction. Th(IV) and La (III) are found to exist in the water as hydroxo-complexes (<80%) and in the form of suspension (<20%). When the concentration of CO2 in the river water decreases to the level typical of the autumn period, the suspended CaCO3 vanishes and the fraction of Ca2UO2(CO3) 3 in the water changes. © 2009 EDP Sciences.

Author keywords:

Index keywords:

нет данных

DOI:

10.1051/radiopro/20095042

Смотреть в Scopus:

https://www.scopus.com/inward/record.uri?eid=2-s2.0-79952744823&doi=10.1051%2fradiopro%2f20095042&partnerID=40&md5=e133d0ac55d9c3603ec728e4e5b11ce2

Соавторы в МНС:

—

Другие поля

Поле	Значение
Link	https://www.scopus.com/inward/record.uri?eid=2-s2.0-79952744823&doi=10.1051%2fradiopro%2f20095042&partnerID=40&md5=e133d0ac55d9c3603ec728e4e5b11ce2
Affiliations	Institute of Solid State Chemistry, UB RAS, 91 Pervomajskaya ul., 620041 Ekaterinburg, Russian Federation; Institute of Plant and Animal Ecology, UB RAS, Biophysical Station, POB 18, Zarechny, Sverdlovsk Reg. 624250, Russian Federation; Institute of Mineralogy, UB RAS, 456301 Miass, Chelyabinsk Reg., Russian Federation; Scientific Engineering Co. ECSORB, 8th March ul., 620014 Ekaterinburg, Russian Federation
References	Kotrly, S., Sucha, L., (1985) Handbook of Chemical Equilibria in Analytical Chemistry, p. 124. , John Wiley & Sons, N-Y; Polyakov, E.V., Egorov, Yu.V., (2003) Russian Chemical Reviews, 72 (11), p. 985; Polyakov, E.V., (2003) Reaction of Ion-colloid Forms of State of Microelements and Radionuclides in Aqueous Solutions, , Ural Branch RAS, Ekaterinburg, in Russian; Burgasov, P.N., (1980) The Methods Recommended for the Sanitary Control of Radioactive Substances Level in the Environment, , Atomizdat, Moscow, (in Russian); Trapesnikov, A.V., Trapesnikova, V.N., (2006) Radioecology of Freshwater Ecosystems, 287p. , Ural Branch Russian Academy of Sciences. Ekaterinburg; Polyakov, E.V., (2007) Radiochemistry (Springer), 49 (4), p. 432; Schubert, J., (1948) J. Phys. Colloid. Chem., 52, p. 340; Kravets, L.I., Dmitriev, S.N., Yu. Apel, P., (1997) High Energy Chemistry, 31, p. 108; Sillen, L.G., Martel, A.E., (1964) Stability Constants of Metal-ion Complexes, p. 138. , The Chemical Society, London; Davis, J.A., Curtis, G.P., (2003) Application of Surface Complexation Modeling to Describe Uranium (VI) Adsorption and Retardation at the Uranium Mill Tailings Site at Naturita, Colorado, , NUREG/CR-6820. U.S. Geological Survey. U.S. Nuclear Regulatory Commission. NRC Job Code W6813; Kelly, S.D., Kemner, K.M., Brooks, S.C., (2007) Geochimica et Cosmochimica Acta, 71, p. 821; Starik, I.E., (1964) Principles of Radiochemistry, , U.S. AEC report AEC-tr-6314; Egorov, Yu.V., (1975) Batch Sorption of Micro-components by Oxyhydroxides, , Atomisdat, Moscow in Russian; Benes, P., (1980) Trace Chemistry of Aqueous Solutions, , Academia. Prague; Polyakov, E.V., (2006) Fifth Russian Radiochemical Conference. Radiochemistry 2006, p. 116. , 23-27 October. (Dubna. Book of Abstracts); Szab, G., Guczi, J., Nisbet, A., (1997) Journal of Radioanalytical and Nuclear Chemistry, 226 (1-2), p. 255; Fox, P.M., Davis, J.A., Zachara, J.M., (2006) Geochimica et Cosmochimica Acta, 70, p. 1379; Choppin, G.R., (2006) Marine Chemistry, 99, pp. 83-92
Correspondence Address	Polyakov, E. V.; Institute of Solid State Chemistry, UB RAS, 91 Pervomajskaya ul., 620041 Ekaterinburg, Russian Federation
Language of Original Document	English
Abbreviated Source Title	Radioprot.
Source	Scopus