Decontamination of Radioactive cobalt,Nickel,Strontium,and Cesium from Simulate solutions Using Tin Antimonate Columns

摘要

Three different tin antimonates with Sn:Sb ratio of 1:3.8,1:1.2,and 13.5:1 were tested for decontamination of radionuclides (~60Co,~63Ni,~137Cs,and ~90Sr).The exchangers were tested in acidic solution (0.1 M HNO_3)and in two floor-drain water simulates containing Na~+,Mg~2+,and Ca~2+ ions.High deconatamination factors adn processing capacities were obtained for Co.Ni,and Sr.The studied tin antimonates were applicable for column use,though clogging of hte column beds did occur,particularly when treating high calcium concentration solutions.