Actinide uptake onto zeolite-L and SAPO-34 |
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Authors: | S Amini A Dyer |
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Institution: | (1) Department of Chemistry and Applied Chemistry, University of Salford, M5 4WT Salford, (U.K.) |
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Abstract: | The characteristics of ion exchange of uranyl and americium, which are -emitting radioactive nuclides, were examined by batch and column methods. SAPO-34 showed good selectivity for uranyl ion at pH 2–3.5, and distribution coefficients of Am3+ and UO
2
2+
increased with equilibrium pH. -irradiation (2 MGy) did not show any significant effect on the uptake of both of actinide ions onto L and SAPO-34. Higher does of -irradiation (up to 10 MGy) created a change of equilibrium pH, and hence uptake, due to radiolysis of water and heat localization generated by -radiation and annealing processes. |
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