A STUDY ON THE IMMOBILIZATION TECHNOLOGY OF SPENT ORGANIC SOLVENT (TBP/OK)
Zhao Bin; Yun Guichun; Ye Yucai(Institute of Nuclear Energy Technology,Tsinghua University,Beijing, 100084)
Spent organic solvent (TBP/OK)is one kind of intermediate liquid radwaste generated in spent fuel reprocessing process. The authers studied the decomposition behavior of spent organic solvent in H2O2-Fe2+/TiO2-H2SO4 systems, analyzed the effects of many factors on the reaction process such as H2O2 dosage,catalyst,temperature and pH-value. Moreover, the treatment technology of condensate and reaction residues was studied in accordance with their physical and chemical characteristics. The reaction mechanism of the catalytic oxidation by H2O2 under the action of synergetic catalysis of TiO2/Fe2+ was discussed tentatively.