Minutes of the Tank Waste Science Panel Meeting March 25--27, 1992
- comp.; Consultant, Wellington, Delaware (United States)
- comp.; Pacific Northwest Lab., Richland, WA (United States)
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 Lab., Richland, WA (United States)
- Sponsoring Organization:
- USDOE; USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC06-76RL01830
- OSTI ID:
- 7147594
- Report Number(s):
- PNL-8278; CONF-9203194-Summ.; ON: DE93002357
- Resource Relation:
- Conference: Tank waste science panel meeting, Denver, CO (United States), 25-27 Mar 1992
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
FERROCYANIDES
DISSOLUTION
LIQUID WASTES
CHEMICAL REACTIONS
NITROUS OXIDE
RADIOACTIVE WASTES
CHEMISTRY
TANKS
SAFETY
CHEMICAL ANALYSIS
DECOMPOSITION
FLAMMABILITY
HANFORD RESERVATION
HYDROGEN
NITRATES
RADIOACTIVE WASTE MANAGEMENT
RESEARCH PROGRAMS
CHALCOGENIDES
COMBUSTION PROPERTIES
COMPLEXES
CONTAINERS
ELEMENTS
IRON COMPLEXES
MANAGEMENT
MATERIALS
NATIONAL ORGANIZATIONS
NITROGEN COMPOUNDS
NITROGEN OXIDES
NONMETALS
OXIDES
OXYGEN COMPOUNDS
RADIOACTIVE MATERIALS
TRANSITION ELEMENT COMPLEXES
US DOE
US ERDA
US ORGANIZATIONS
WASTE MANAGEMENT
WASTES
052002* - Nuclear Fuels- Waste Disposal & Storage
400800 - Combustion
Pyrolysis
& High-Temperature Chemistry