Sorption-barrier properties of granitoids and andesite-basaltic metavolcanites with respect to Am(III) and Pu(IV): 1. Absorption of Am and Pu from groundwater on monolithic samples of granitoids and andesite-basaltic metavolcanites |
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| Authors: | E. B. Anderson Yu. M. Rogozin E. A. Smirnova R. V. Bryzgalova N. R. Andreeva S. I. Malimonova S. I. Shabalev Ai Fujiwara O. Tochiyama |
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| Affiliation: | (1) Khlopin Radium Institute, Research and Production Association, Federal State Unitary Enterprise, St. Petersburg, Russia;(2) Radioactive Waste Management Funding and Research Center, Japan;(3) JMRAM, Tohoku University, Japan |
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| Abstract: | A model study is made of the sorption-barrier properties of intact monolithic samples of granitoids and andesite-basaltic metavolcanites with respect to Am(III) and Pu(IV). In sorption from simulated groundwater (pH 8.3), the surface distribution coefficient in surface sorption K a was determined to be 8–37 and 4–80 cm for Am and Pu, respectively. The mineral components of the rocks responsible for the radionuclide sorption were identified by autoradiography. The rocks tested are characterized by high retention capacity for Am and Pu. |
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