Method of treating contaminated HEPA filter media in pulp process
Abstract
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.
- Inventors:
- Issue Date:
- Research Org.:
- Idaho National Laboratory (INL), Idaho Falls, ID (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1174419
- Patent Number(s):
- 6599369
- Application Number:
- 09/791,952
- Assignee:
- Bachtel BWXT Idaho, LLC (Idaho Falls, ID)
- Patent Classifications (CPCs):
-
B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01D - SEPARATION
B - PERFORMING OPERATIONS B08 - CLEANING B08B - CLEANING IN GENERAL
- DOE Contract Number:
- AC07-94ID13223
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
Citation Formats
Hu, Jian S., Argyle, Mark D., Demmer, Ricky L., and Mondok, Emilio P. Method of treating contaminated HEPA filter media in pulp process. United States: N. p., 2003.
Web.
Hu, Jian S., Argyle, Mark D., Demmer, Ricky L., & Mondok, Emilio P. Method of treating contaminated HEPA filter media in pulp process. United States.
Hu, Jian S., Argyle, Mark D., Demmer, Ricky L., and Mondok, Emilio P. Tue .
"Method of treating contaminated HEPA filter media in pulp process". United States. https://www.osti.gov/servlets/purl/1174419.
@article{osti_1174419,
title = {Method of treating contaminated HEPA filter media in pulp process},
author = {Hu, Jian S. and Argyle, Mark D. and Demmer, Ricky L. and Mondok, Emilio P.},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jul 29 00:00:00 EDT 2003},
month = {Tue Jul 29 00:00:00 EDT 2003}
}
Works referenced in this record:
HEPA filter leaching concept validation trials at the Idaho Chemical Processing Plant
report, April 1995
- Chakravartty, A. C.
- INEL--95/0182
Feasibility study for an additional HEPA filter leaching system in NWCF
report, November 1992
- Willis, W. D.
- EGG-ME--10522
Recovery of plutonium from HEPA filters by Ce(IV): promoted dissolution of PuO2 and recycle of the cerium promoter
report, May 1980
- Scheitlin, F. M.; Bond, W. D.
- ORNL/TM-6802