Minutes of the Tank Waste Science Panel Meeting March 25--27, 1992. Hanford Tank Safety Project
- comp.
Discussions from the seventh meeting of the Tank Waste Science are presented in Colorado. The subject areas included the generation of gases in Tank 241-SY-101, the possible use of sonication as a mitigation method, and analysis for organic constituents in core samples. Results presented and discussed include: Ferrocyanides appear to be rapidly dissolved in 1M NaOH; upon standing in the laboratory at ambient conditions oxalate precipitates from simulated wastes containing HEDTA. This suggests that one of the main components in the solids in Tank 241-SY-101 is oxalate; hydrogen evolved from waste samples from Tank 241-SY-101 is five times that observed in the off gas from the tank; data suggest that mitigation of Tank 241-SY-101 will not cause a high release of dissolved N{sub 2}O; when using a slurry for radiation studies, a portion of the generated gases is very difficult to remove. To totally recover the generated gases, the solids must first be dissolved. This result may have an impact on mitigation by mixing if the gases are not released. Using {sup 13}C-labeled organics in thermal degradation studies has allowed researchers to illucidate much of the kinetic mechanism for the degradation of HEDTA and glycolate. In addition to some of the intermediate, more complex organic species, oxalate, formate, and CO{sub 2} were identified; and analytic methods for organics in radioactive complex solutions such as that found in Tank 241-SY-101 have been developed and others continue to be developed.
- Research Organization:
- Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC06-76RL01830
- OSTI ID:
- 10183498
- Report Number(s):
- PNL-8278; CONF-9203194-Summ.; ON: DE93002357
- Resource Relation:
- Other Information: PBD: Aug 1992
- Country of Publication:
- United States
- Language:
- English
Similar Records
Hanford Tank Safety Project: Minutes of the Tank Waste Science Panel meeting, February 7--8, 1991
Hanford Tank Safety Project: Minutes of the Tank Waste Science Panel meeting, February 7--8, 1991
Related Subjects
11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS
TANKS
SAFETY
RADIOACTIVE WASTE STORAGE
MEETINGS
FERROCYANIDES
DISSOLUTION
NITROUS OXIDE
RADIOACTIVE WASTES
CHEMISTRY
LIQUID WASTES
CHEMICAL REACTIONS
HANFORD RESERVATION
RADIOACTIVE WASTE MANAGEMENT
FLAMMABILITY
HYDROGEN PRODUCTION
DECOMPOSITION
CHEMICAL ANALYSIS
NITRATES
RESEARCH PROGRAMS
ORGANIC COMPOUNDS
OXALATES
FORMATES
CARBON DIOXIDE
052002
054000
WASTE DISPOSAL AND STORAGE
HEALTH AND SAFETY