Strontium-85 and plutonium-239 sorption in rock samples from the Semipalatinsk Test Site, Kazakhstan

NM (United States) Los Alamos National Lab., C Mason, USDOE Assistant Secretary for Human Resources and Administration, Washington, DC (United States) (US), N Lu, N Marusak, B. Scheber, S Chipera, D Daukeyev, I. V. Khromushin

1999

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DOI 10.2172/325746
Data confidence 70 medium
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Abstract

The adsorption and desorption of strontium and plutonium were studied as a function of rock type and simulated ground waters from the Semipalatinsk Test Site (STS). Seven different rock types were obtained from the Balapan Region of the STS and were subjected to x-ray diffraction analyses. Two different ground waters were simulated using data supplied by the National Nuclear Center. The results indicate the sorption of strontium is strongly dependent on the minerals present in the rock species and on the total ionic strength of the ground water whereas, in all cases, plutonium was strongly irreversibly sorbed.