Vitrification of waste
Patent
·
OSTI ID:335430
A method is described 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 C to 800 C to incinerate organic materials, then heated further to a temperature in the range of approximately 1100 C to 1400 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.
- Research Organization:
- Westinghouse Savannah River Co
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC09-89SR18035
- Assignee:
- Dept. of Energy, Washington, DC (United States)
- Patent Number(s):
- US 5,891,011/A/
- Application Number:
- PAN: 7-866,780
- OSTI ID:
- 335430
- Country of Publication:
- United States
- Language:
- English
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