Аннотация:It has been found that leaching of Amiii from the surface after the sorption is characterized by slow kinetics; over 10 days are required to reach a dynamic equilibrium in the system.
The leaching process is accompanied by the formation of Am-containing phosphate phase on the sorbent surface. Annealing the sample at 400 °C for 5 h after sorption results in incorporation of the sorbed cation into the sorbent structure, which allows subsequent leaching to be reduced considerably.