Application of inorganic sorbents for removal of Cs, Sr, Pu and Am from contaminated solutions |
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Institution: | (1) Institute of Physics, Savanorių 231, 02300 Vilnius, Lithuania;(2) Institute for Sorption and Problems of Endoecology, Generala Naumova 13, 03164 Kiev, Ukraine |
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Abstract: | A sorption ability of titanium silicates (TiSi) and iron oxides towards Cs, Sr, Pu and Am was tested using the laboratory
batch method. The obtained results are expressed as distribution coefficients (Kd). TiSi synthesised using TiOSO4 revealed better sorption ability towards all studied radionuclides in comparison with TiSi produced on the basis of TiCl4. The Kd values ranged from 3.9 × 102 to 1.6 × 105 mL g−1 for Sr, from 6 to 4.1 × 104 mL g−1 for Cs, from 2.2 × 102 to 2.6 × 105 mL g−1 for Pu and from 50 to 1.6 × 104 mL g−1 for Am. The highest Pu Kd values (9 × 103–6.2 × 104 mL g−1) and better kinetics were found for iron oxides. |
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