Method of treating contaminated HEPA filter media in pulp process
A method for reducing contamination of HEPA filters with radioactive and/or hazardous materials is described. The method includes pre-processing of the filter for removing loose particles. Next, the filter medium is removed from the housing, and the housing is decontaminated. Finally, the filter medium is processed as pulp for removing contaminated particles by physical and/or chemical methods, including gravity, flotation, and dissolution of the particles. The decontaminated filter medium is then disposed of as non-RCRA waste; the particles are collected, stabilized, and disposed of according to well known methods of handling such materials; and the liquid medium in which the pulp was processed is recycled.
- Research Organization:
- Idaho National Laboratory (INL), Idaho Falls, ID (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC07-94ID13223
- Assignee:
- Bachtel BWXT Idaho, LLC (Idaho Falls, ID)
- Patent Number(s):
- 6,599,369
- Application Number:
- 09/791,952
- OSTI ID:
- 1174419
- Country of Publication:
- United States
- Language:
- English
Recovery of plutonium from HEPA filters by Ce(IV): promoted dissolution of PuO2 and recycle of the cerium promoter
|
report | May 1980 |
Feasibility study for an additional HEPA filter leaching system in NWCF
|
report | November 1992 |
HEPA filter leaching concept validation trials at the Idaho Chemical Processing Plant
|
report | April 1995 |
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