Abstract
The leaching of137Cs and90Sr from Surrey Earth montmorillonite and Silver Hill illite has been studied. Three forms of the clays, calcined and uncalcined and their composites with cement, were leached with four leachants, deionized water, and simulated sea ground and storage pond waters. Results were expressed as the cumulative fraction of activity leached against the square root of time, and used to compute diffusion coefficients. These suggested that all the leaching processes studied were slow (10−22 to 10−18 m2.s−1).
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Dyer, A., Umar, I.M. The uptake of radioisotopes onto clays and other natural materials. J Radioanal Nucl Chem 242, 329–333 (1999). https://doi.org/10.1007/BF02345560
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DOI: https://doi.org/10.1007/BF02345560