Study on the Development of Flow Sheet for the Separation of MA(III) and Ln(III) Fission Products using Two-Step Process with Impregnated Adsorbents

The separation of minor actinides (MA) from lanthanides (Ln) in high-level radioactive liquid waste (HLLW) is a challenging task.In this study, a flow sheet was developed for the separation of MA(III) and Ln(III) using a twostep separation column system with silica-based microporous adsorbents.In a column packed with a TEHDGAimpregnated adsorbent, MA(III) and Ln(III) were simultaneously recovered from a HLLW solution containing the radioactive isotopes 241 Am and 152 Eu.In a second column using a HONTA-impregnated adsorbent, MA(III) was separated from the MA(III)-Ln(III) mixed solution.