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US 2013/0075677 A1Published application
Method of making nanostructured glass-ceramic waste forms
AssigneeSandia Corporation
InventorsHuizhen Gao, Yifeng Wang, Mark A. Rodriguez, Denise N. Bencoe
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Abstract
A waste form for and a method of rendering hazardous materials less dangerous is disclosed that includes fixing the hazardous material in nanopores of a nanoporous material, reacting the trapped hazardous material to render it less volatile/soluble, and vitrifying the nanoporous material containing the less volatile/soluble hazardous material.
Claims31
A waste form formed by a method comprising the steps of:
- sorbing a hazardous material in nanopores of a nanoporous material;
- fixing the sorbed hazardous material with an alkaline reagent or alkaline silicate to render it less volatile/soluble by converting the sorbed hazardous material into a sorbed, anionic hazardous material;
- mixing the nanoporous material with a glass-forming component;
- and
- vitrifying the sorbed, anionic hazardous material to form the waste form;
- wherein the waste form comprises nanometer precipitates comprising the hazardous material.
3 more elements
The waste form of claim 16 wherein the one or more components comprise lithium oxide.
A composition formed by a method comprising the steps of:
- sorbing a hazardous material in nanopores of a nanoporous material;
- and
- fixing the sorbed hazardous material with an alkaline reagent or alkaline silicate to render it less volatile/soluble by converting the sorbed hazardous material into a sorbed, anionic hazardous material.
Dependencies are inferred from the claim text.