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Leaching of Used Candu™ Fuel in the Presence of Clay, Titanium and Granite Rock

  • John C. Tait (a1), Simcha Stroes-Gascoyne (a1), Robert J. Porth (a1), Don Wood (a1) and Robert B. Heimann (a2)...

Abstract

Dissolution experiments have been performed at 95 or 100°C on used fuel in the presence of various components of a disposal system: granite rock, clay (Na-montmorillonite, illite), container (titanium), and two groundwaters with different ionic strengths (0.0015, 0.28). The results showed that Cs and Sr release to solution is highest in the high-ionic-strength groundwater and that clay type is less important in determining short-term release from the fuel. It also appears that after an initial release period lasting about 10 to 20 days, radionuclide release from the fuel to solution slows considerably. Cs was found to sorb more effectively than Sr on illite and montmoril-lonite, while Sr sorbed more effectively than Cs on the granite.

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Leaching of Used Candu™ Fuel in the Presence of Clay, Titanium and Granite Rock

  • John C. Tait (a1), Simcha Stroes-Gascoyne (a1), Robert J. Porth (a1), Don Wood (a1) and Robert B. Heimann (a2)...

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