Vitrification of waste

Patent · Tue Apr 06 00:00:00 EDT 1999

OSTI ID:335430

Wicks, G G

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: Savannah River Site (SRS), Aiken, SC (United States)
• 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; TRN: 99:004570
• OSTI ID: 335430
• Resource Relation: Other Information: PBD: 6 Apr 1999
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
05 NUCLEAR FUELS
BIOLOGICAL WASTES
RADIOACTIVE WASTES
INDUSTRIAL WASTES
CHEMICAL WASTES
PRINTED CIRCUITS
VITRIFICATION
MICROWAVE HEATING
ORGANIC MATTER
COMBUSTION
WASTE FORMS
RADIOACTIVE WASTE PROCESSING