Composite sorbents for radionuclide separation

New possibilities have shown technologies using composite sorbents on inorganic bases, also suitable for column applications such as: CsTreat., SrTreat., CoTreat; BIFEGE and FERROCYN (Prussian blue composite sorbents on a cellulosic carrier); ANZZH, RATZIR ((zirconium hydroxide - ZrO_x(OH)Y, where x = 0-1, y = 2-4), RATZIR-K (zirconium hydroxide on aluminosilicate), FEZHEL (composite sorbent K₄[Fe(CN)₆ on cellulose); NIKET (nickel ferrocyanide on aluminosilicate), MODIKS (MnO₂ on aluminosilicate), UNIKET ((Prussian blue) on porous cellulose, K_xFe _y[Fe(CN)₆] where x = 0.2-0.8; y = 1.2-1.8); SMET (CuS₂ on aluminosilicate), IONSIV, which have been used in radioactive waste treatment, as well as in the radiative contamination monitoring of the aquatic environment, the Chernobyl and Fukushima disasters. (authors)