Simultaneous adsorption of Cs-137 and I-131 from water and milk on "metal ferrocyanide-anion exchange resin".

“Metal ferrocyanide-anion exchange resin”, which is made by precipitating the metal ferrocyanide in an anion exchange resin matrix, has been used for selective adsorption of Cs ion in a variety of aqueous solutions. The “resin” has both properties of metal ferrocyanide and anion exchange resin. Therefore, we tried simultaneous adsorption of radiocesium and radioiodine from water and milk on the “resin”. Results showed that “metal ferrocyanide-anion exchange resin” such as Cu, Fe and Ni ferrocyanide can be used for a rapid and simple concentration of radiocesium and radioiodine quantitatively from a large volume of sample solutions. This paper also touches upon the removal of 137Cs and 131I in rain water and milk collected in Japan after the Chernobyl accident.