Abstract
The colloidal fractions of various particle sizes were separated from the samples of groundwater in the area of radioactive contamination nearby Obninsk (Kaluga region, Russia). The primary component of the radioactive contamination is 90Sr isotope. The colloidal particles were separated from the samples of groundwater by means of ultrafiltration through membranes of 200, 100, and 25 nm pore sizes. The chemical composition of particle surfaces in each of the fractions was determined using X-ray photoelectron spectroscopy. The structure of particles was determined by the changes in the surface composition after the removal of outer layers of particles by etching with argon ions to a depth of 100 Å. It was found that the particles are constituted by inorganic cores mainly of montmorillonite and iron metahydroxide and a broken covering of humic acids. It was shown that about 50% of 90Sr is transferred by groundwater with colloidal particles of over 25 nm in size.
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J. F. Aheare, N. P. Laverov, R. C. Ewing, B. J. Garrick, D. C. Hoffman, G. M. Hornberger, N. N. Melnikov, B. F. Myasoedov, A. A. Pek, and M. I. Solonin, End points for spent nuclear fuel and high-level radioactive waste in Russia and the United States / Committee on End Points for Spent Nuclear Fuel and High-Level Radioactive Waste in Russia and the United States (Nat. Acad. Press, Washington, 2003).
W. R. Penrose, W. L. Polzer, E. H. Essington, et al., Environ. Sci. Technol. 24(2), 228–234 (1990).
J. F. McCarthy, K. R. Czerwinski, W. E. Sanford, et al., J. Contaminant Hydrol. 30(1), 49–77 (1998).
B. D. Honeyman, Nature 397, 23–24 (1999).
P. Vilks, H. G. Miller, and D. C. Doern, Appl. Geochem. 6, 565–574 (1991).
E. C. Buck and J. K. Bates, Appl. Geochem. 14, 635–653 (1999).
V. I. Malkovsky, Yu. P. Dikov, En. E. Asadulin, and V. V. Krupskaya, Clay Miner. 47, 391–400 (2012).
A. N. Vasil’eva, Environmental and technical evaluation of the conditions of a radioactive waste storage by the example of the regional structure in the Protva River basin in the north of Kaluga region, Extended Abstract of Cand. Sci. (Eng.) Dissertation, Mendeleev University of Chemical Technology of Russia, Moscow, 2007.
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Original Russian Text © V.I. Mal’kovskii, Yu.P. Dikov, N.E. Latynova, E.V. Aleksandrova, 2014, published in Doklady Akademii Nauk, 2014, Vol. 458, No. 1, pp. 80–82.
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Mal’kovskii, V.I., Dikov, Y.P., Latynova, N.E. et al. Analysis of colloidal transfer of strontium-90 with groundwater. Dokl. Earth Sc. 458, 1104–1106 (2014). https://doi.org/10.1134/S1028334X14090104
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DOI: https://doi.org/10.1134/S1028334X14090104