SEPARATION OF RADIONUCLIDES OR HEAVY AND TOXIC METALS FROM COMPLEXINGMEDIA

Photocatalytic degradation of oxalic and citric acids by ultraviolet r adiation in the presence of five different samples of titanium dioxide semiconductor photocatalyst was studied. Sorption of strontium on the same set of materials was studied as a function of pH. It was conclud ed that for a process comprising in one step photodegradation of organ ic complexants and sorption of released ions on the photocatalyst/sorb ent, the selection of the most efficient material will be strongly pH- dependent.