Borobasalt systems as host materials for incorporation of radioactive waste from pyroelectrochemical technology

Abstract

Borobasalt systems were studied as host materials for incorporation of radioactive waste from pyroelectrochemical technology. For all the examined compositions, the leach rates are of the order of 10^–7 g cm^–2 day^–1, which is quite acceptable for radionuclide immobilization. The synthesis temperature ensuring formation of homogeneous glasses is about 1250°С for all the examined compositions. The host material is capable to incorporate up to 40 wt % phosphate wastes, which seems quite sufficient from the viewpoint of technology. The system is only weakly sensitive to variations of the boric anhydride content.