Decontamination of the 233-S Building Loadout Hood
This paper summarizes the engineering and field work conducted to decontaminate the 233-S Building Loadout Hood, a plutonium nitrate loadout facility highly contaminated with transuranics. The scope of work supporting the Loadout Hood decontamination effort included a detailed physical and radiological characterization, decontamination/fixation to reduce surface contamination to levels which would allow structural dismantling to be conducted with minimum airborne contamination, and dismantling to remove contaminated components. Decontamination operations were performed in a deliberate, systematic manner to generate data for evaluating the technology and methods used. Pre-dismantling decontamination and fixation efforts were designed to clean Loadout Hood internal surfaces in-place to nondetectable surface contamination levels as an alternative to dismantling in a loose contamination environment. Results of this approach as well as the effectiveness of a HEPA filtered vacuum cleaner, and several different decontamination chemicals and fixatives are evaluated. Recommendations based on lessons learned are made for future decontamination and decommissioning operations.
- Research Organization:
- Rockwell International Corp., Richland, WA (USA). Rockwell Hanford Operations
- DOE Contract Number:
- AC06-77RL01030
- OSTI ID:
- 5217122
- Report Number(s):
- RHO-SA-187; CONF-800753-1; TRN: 80-013795
- Resource Relation:
- Conference: US DOE transuranic waste management program decontamination technology transfer meeting, Richalnd, WA, USA, 29 Jul 1980
- Country of Publication:
- United States
- Language:
- English
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42 ENGINEERING
11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS
DECONTAMINATION
NUCLEAR FACILITIES
BUILDINGS
DEMONSTRATION PROGRAMS
HOT LABS
PLUTONIUM NITRATES
RECOMMENDATIONS
SURFACE CLEANING
ACTINIDE COMPOUNDS
CLEANING
NITRATES
NITROGEN COMPOUNDS
OXYGEN COMPOUNDS
PLUTONIUM COMPOUNDS
SURFACE FINISHING
TRANSURANIUM COMPOUNDS
400702* - Radiochemistry & Nuclear Chemistry- Properties of Radioactive Materials
420203 - Engineering- Handling Equipment & Procedures
054000 - Nuclear Fuels- Health & Safety