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U.S. Department of Energy
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Surface decontamination of solid waste

Conference ·
OSTI ID:5593503
This paper summarizes work in progress at Pacific Northwest Laboratory to develop vibratory finishing into a large-scale decontamination system that can minimize the volume of surface-contaminated metallic and nonmetallic waste requiring geologic disposal. Vibratory finishing is a mass finishing process used in the metal finishing industry to debur, clean and improve surface finishes. The process combines a mechanical scrubbing action of a solid medium with the cleaning action of a liquid compound. The process takes place in a vibrating tub. Tests have demonstrated the ability to rapidly reduce contamination levels of transuranic-contaminated waste to substantially less than 10 nCi/g, the current limit for transuranic waste. The process is effective on a wide range of materials including stainless steel, Plexiglas, Neoprene, and Hypalon, the principal materials in Hanford glove boxes.
Research Organization:
Pacific Northwest Lab., Richland, WA (USA)
DOE Contract Number:
AC06-76RL01830
OSTI ID:
5593503
Report Number(s):
PNL-SA-8368; CONF-800802-28; ON: DE82007084
Country of Publication:
United States
Language:
English