Vitrification of waste
- Aiken, SC
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.
- Research Organization:
- WESTINGHOUSE SAVANNAH RIVER CO
- DOE Contract Number:
- AC09-89SR18035
- Assignee:
- United States of America as represented by United States (Washington, DC)
- Patent Number(s):
- US 5891011
- OSTI ID:
- 872236
- Country of Publication:
- United States
- Language:
- English
Similar Records
Method for recovering metals from waste
Method for recovering materials from waste
Related Subjects
1100
1400
300
800
added
approximately
biologically
boards
borosilicate
borosilicate glass
chemically
circuit
circuit board
circuit boards
concentration
crucible
degree
disposal
electronic
encapsulating
especially
fiberglass
formers
glass
glass former
glass formers
hazardous
heated
immobilizing
immobilizing waste
incinerate
increase
materials
method
microwaves
organic
organic material
organic materials
placed
preferably
process
quartz
radioactively
range
silicate
silicate glass
start
sufficiently
temperature
temperature glass
vitrification
vitrify
waste
wastes