Recovery of actinides extracted by Truex solvent from high level waste using complexing agents |
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| Authors: | R R Chitnis P K Wattal A Ramanujam P S Dhami V gopalakrishnan A K Bauri A Banerji |
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| Institution: | (1) Radiochemistry Laboratory, College of Chemistry and Chemical Engineering, Lanzhou University, 730000 Lanzhou, P. R. China |
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| Abstract: | The sorption and migration of radiostrontium in a calcareous soil from Yu Zhong county of Gansu province (China) was studied
using batch and column experiments. Sorption isotherms, breakthrough curves and concentration profiles for the untreated soil
and the soil treated to remove CaCO3 were determined, respectively. It was found that radiostrontium is a relatively mobile nuclide in calcareous soil and removal
of CaCO3 from the soil slightly increases the retention ability for radiostrontium. The breakthrough curves were fitted to the analytical
solution of a one-dimensional convection-dispersion transport model that assumes a reversible linear isotherm. Good agreement
was obtained between the measured and predicted concentration profiles. |
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