Vitrification of waste
Abstract
A method for encapsulating and immobilizing waste for disposal. Waste, preferably, biologically, chemically and radioactively hazardous, and especially electronic wastes, such as circuit boards, are placed in a crucible and heated by microwaves to a temperature in the range of approximately 300.degree. C. to 800.degree. C. to incinerate organic materials, then heated further to a temperature in the range of approximately 1100.degree. C. to 1400.degree. C. at which temperature glass formers present in the waste will cause it to vitrify. Glass formers, such as borosilicate glass, quartz or fiberglass can be added at the start of the process to increase the silicate concentration sufficiently for vitrification.
- Inventors:
-
- Aiken, SC
- Issue Date:
- Research Org.:
- Savannah River Site (SRS), Aiken, SC (United States)
- OSTI Identifier:
- 872236
- Patent Number(s):
- 5891011
- Assignee:
- United States of America as represented by United States (Washington, DC)
- Patent Classifications (CPCs):
-
A - HUMAN NECESSITIES A62 - LIFE-SAVING A62D - CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS
C - CHEMISTRY C03 - GLASS C03B - MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- DOE Contract Number:
- AC09-89SR18035
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- vitrification; waste; method; encapsulating; immobilizing; disposal; preferably; biologically; chemically; radioactively; hazardous; especially; electronic; wastes; circuit; boards; placed; crucible; heated; microwaves; temperature; range; approximately; 300; degree; 800; incinerate; organic; materials; 1100; 1400; glass; formers; vitrify; borosilicate; quartz; fiberglass; added; start; process; increase; silicate; concentration; sufficiently; glass former; circuit board; organic materials; organic material; silicate glass; glass formers; circuit boards; immobilizing waste; temperature glass; borosilicate glass; /588/204/
Citation Formats
Wicks, George G. Vitrification of waste. United States: N. p., 1999.
Web.
Wicks, George G. Vitrification of waste. United States.
Wicks, George G. Fri .
"Vitrification of waste". United States. https://www.osti.gov/servlets/purl/872236.
@article{osti_872236,
title = {Vitrification of waste},
author = {Wicks, George G},
abstractNote = {A method for encapsulating and immobilizing waste for disposal. Waste, preferably, biologically, chemically and radioactively hazardous, and especially electronic wastes, such as circuit boards, are placed in a crucible and heated by microwaves to a temperature in the range of approximately 300.degree. C. to 800.degree. C. to incinerate organic materials, then heated further to a temperature in the range of approximately 1100.degree. C. to 1400.degree. C. at which temperature glass formers present in the waste will cause it to vitrify. Glass formers, such as borosilicate glass, quartz or fiberglass can be added at the start of the process to increase the silicate concentration sufficiently for vitrification.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Fri Jan 01 00:00:00 EST 1999},
month = {Fri Jan 01 00:00:00 EST 1999}
}
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