Conference Proceedings Paper
Evaluation of Sorption Distribution Coefficient of Cs onto Granite using Sorption Data Collected in Sorption Database and Sorption Model
34th Annual CNS Conference - 2013 June 09-12
Shinya Nagasaki (McMaster University)
Based on the sorption distribution coefficients (Kd) of Cs onto granite collected from the JAERI Sorption Database (SDB), the parameters for a two-site model without the triple-layer structure were optimized. Comparing the experimentally measured Kd values of Cs onto Mizunami granite carried out by JAEA with the Kd values predicted by the model,the effect of the ionic strength on the Kdvalues of Cs onto granite was evaluated. It was found that Kdvalues could be determined using the content of biotite in granite at a sodium concentration([Na]) of 1 x 10-2to 5 x 10-1 mol/dm3. It was suggested that in high ionic strength solutions, the sorption of Cs onto other minerals such as microcline should also be taken into account.
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