دورية
Immobilization of Barium, Cadmium and Antimony Cations Over Zirconia
| العنوان: | Immobilization of Barium, Cadmium and Antimony Cations Over Zirconia |
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| المؤلفون: | BHATTACHARYYA, D.K., DUTTA, N.C. |
| المصدر: | Journal of Nuclear Science and Technology; November 1991, Vol. 28 Issue: 11 p1014-1018, 5p |
| مستخلص: | In order to meet up the requirement for the safe disposal of high level radioactive waste, immobilization of Ba, Cd and Sb over the freshly prepared hydrothermally stable and dense type zirconium oxide is studied. Investigation about the adsorption of Ba, Cd and Sb at tracer level was undertaken with the hydrous zirconia, dried at 70°C for 24 h, and very high uptakes of 140Ba (95.69%), 115Cd (99.43%) and 125Sb (95.18) were observed. Weighable quantities of Ba, Cd and Sb cations were separately precipitated alongwith zirconium-hydroxide and 46.5w/0 for Ba, 58 w/0 for Cd and 53.0 w/0 for Sb were adsorbed respectively. After calcining the mixed mass in pellet form at 1,200°C for 20 h, soxhlet leach test at 97°C in every 24 h for 7 days showed the release of cations in the order of 10−7g.cm−2·d−1. Surface area of the immobilizer pellet was determined by N2gas adsorption BET method. X-ray diffraction patterns have been also obtained for each of the zirconia samples accommodated with Ba, Cd and Sb, and distinct structural changes have been indicated. |
| قاعدة البيانات: | Supplemental Index |
PDF full text from Publisher | تدمد: | 00223131 18811248 |
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| DOI: | 10.1080/18811248.1991.9731464 |