Orthophosphate waste forms for actinides and high-level radioactive wastes

Orthophosphate waste forms for actinides and high-level radioactive wastes 

In the case of the disposal of high-level light water reactor waste, these wastes intrinsically contain up to 35 wt % rare-earth oxides that could be directly converted to form part of the monazite host matrix. Because Ewing and Wang (this volume) have provided a comparison of the properties of monazite-based waste forms to those of other crystalline host media and nuclear waste phosphate glasses, no further details regarding this application of the rare-earth orthophosphates will be given here. 

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