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U.S. Department of Energy
Office of Scientific and Technical Information

Decontamination of HEPA filters: April--June 1977

Technical Report ·
DOI:https://doi.org/10.2172/7299410· OSTI ID:7299410

Efforts this past quarter were directed toward the determination of dissolution parameters in various reagents of PuO/sub 2/, PuO/sub 2/-UO/sub 2/ solid solution, and AmO/sub 2/-PuO/sub 2/. The reagents used were various concentrations of HNO/sub 3/-HF-H/sub 2/SO/sub 4/, HNO/sub 3/-HF, HNO/sub 3/-(NH/sub 4/)/sub 2/Ce(NO/sub 3/)/sub 6/, and HNO/sub 3/-H/sub 2/SO/sub 4/. In one series of tests, simulated contaminated HEPA filter media were used. This material was prepared by mixing shredded filter media with actinide oxides. In another series, actual HEPA glovebox filter media contaminated with PuO/sub 2/ were used. Fusion tests were also completed using simulated PuO/sub 2/ contaminated filter media. Both Na/sub 2/CO/sub 3/ and Na/sub 2/CO/sub 3/-KNO/sub 3/ were investigated as possible fusion agents.

Research Organization:
Mound Lab., Miamisburg, OH (USA)
DOE Contract Number:
EY-76-C-04-0053
OSTI ID:
7299410
Report Number(s):
MLM-2445
Country of Publication:
United States
Language:
English