Low-temperature setting phosphate ceramics for stabilization of DOE problem low level mixed-waste: II, Performance studies on the final waste forms.

摘要

Preliminary performance studies were done on various phosphate bonded ceramics and their waste forms, reported in a companion paper. The studies include phosphate ceramics of Mg, Al, Mg-Na and Zr and waste forms of each of these phosphates produced by incorporating 35 wt.% of surrogate ash waste. This article deals with the mineralogy of these phosphate systems and the resultant waste forms. Based on the mineralogy, we show that phosphate systems are one of the most suitable host materials for ash wastes due to formation of silica-phosphate complexes in the waste forms.