Pretreatment of 1AW Sample
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Graphical Abstract
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Abstract
In order to separate U, Np, and Pu from other radionuclides in 1AW high level liquid waste, an extraction chromatography method using silica-based polymeric materials resin coated with TBP, CMP, or CMPO as stationary phase was studied. After pretreatment with silica-based TBP-impregnated resin column the recovery of U is about 100%, the total recovery of Np and Pu can reach 99.6%. According to the decontamination factor of fission products, the total γ radioactivity and β radioactivity can be reduced by 1.3×103 times and 1.18×103 times, respectively.
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