Plasma vitrification of waste materials
Abstract
This invention provides a process wherein hazardous or radioactive wastes in the form of liquids, slurries, or finely divided solids are mixed with finely divided glassformers (silica, alumina, soda, etc.) and injected directly into the plume of a non-transferred arc plasma torch. The extremely high temperatures and heat transfer rates makes it possible to convert the waste-glassformer mixture into a fully vitrified molten glass product in a matter of milliseconds. The molten product may then be collected in a crucible for casting into final wasteform geometry, quenching in water, or further holding time to improve homogeneity and eliminate bubbles. 4 figs.
- Inventors:
- Issue Date:
- Research Org.:
- Westinghouse Hanford Co
- Sponsoring Org.:
- USDOE, Washington, DC (United States)
- OSTI Identifier:
- 489079
- Patent Number(s):
- 5637127
- Application Number:
- PAN: 8-566,238; TRN: 97:011393
- Assignee:
- Westinghouse Electric Corp., Pittsburgh, PA (United States)
- DOE Contract Number:
- AC06-87RL10930
- Resource Type:
- Patent
- Resource Relation:
- Other Information: PBD: 10 Jun 1997
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 05 NUCLEAR FUELS; HAZARDOUS MATERIALS; RADIOACTIVE WASTES; VITRIFICATION; LIQUID WASTES; SLURRIES; PARTICULATES; PLASMA FURNACES; RADIOACTIVE WASTE PROCESSING
Citation Formats
McLaughlin, D F, Dighe, S V, and Gass, W R. Plasma vitrification of waste materials. United States: N. p., 1997.
Web.
McLaughlin, D F, Dighe, S V, & Gass, W R. Plasma vitrification of waste materials. United States.
McLaughlin, D F, Dighe, S V, and Gass, W R. Tue .
"Plasma vitrification of waste materials". United States.
@article{osti_489079,
title = {Plasma vitrification of waste materials},
author = {McLaughlin, D F and Dighe, S V and Gass, W R},
abstractNote = {This invention provides a process wherein hazardous or radioactive wastes in the form of liquids, slurries, or finely divided solids are mixed with finely divided glassformers (silica, alumina, soda, etc.) and injected directly into the plume of a non-transferred arc plasma torch. The extremely high temperatures and heat transfer rates makes it possible to convert the waste-glassformer mixture into a fully vitrified molten glass product in a matter of milliseconds. The molten product may then be collected in a crucible for casting into final wasteform geometry, quenching in water, or further holding time to improve homogeneity and eliminate bubbles. 4 figs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jun 10 00:00:00 EDT 1997},
month = {Tue Jun 10 00:00:00 EDT 1997}
}
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