Ferrocyanide safety program: Moisture migration test in ferrocyanide simulant

Technical Report · Mon Aug 01 00:00:00 EDT 1994

DOI:https://doi.org/10.2172/10186276· OSTI ID:10186276

Crippen, M D

During the initial phases of the Ferrocyanide Safety Program, it was presumed that actual sludge in tanks would behave as if it were a two-phase system in which a brine phase would seep through the insoluble solid phase of ferrocyanide and other precipitated salts. After flowsheet materials were produced and extensively tested, it became apparent that the ferrocyanide precipitates held extensive quantities of water (50% by weight or more) that were far above what would be expected from hydrated salts. Because little or no draining of this fluid occurred over a period of months, it was concluded that the precipitates and their solution would act as a homogeneous single phase in much the same way as natural clays. Suggestions were made that the testing of clays could add to existing knowledge of sludge hydraulic and rheologic properties, at a much-reduced cost in chemicals and time over that required for flowsheet materials. Tests were conducted in a 400-L volume of ferrocyanide sludge simulant to determine thermal characteristics around heated zones. At low heat loads, surface vapor losses were much lower than return rates, resulting in no net change in water content. Under boiling conditions, no bulk dryout occurred. These results were consistent with the results from earlier small-scale experiments.

• Research Organization: Westinghouse Hanford Co., Richland, WA (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: AC06-87RL10930
• OSTI ID: 10186276
• Report Number(s): WHC-EP-0800; ON: DE95000734; BR: 35AF11201/35AF11202; TRN: 94:020364
• Resource Relation: Other Information: PBD: Aug 1994
• Country of Publication: United States
• Language: English

Related Subjects

11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS
12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
HANFORD RESERVATION
RADIOACTIVE WASTE MANAGEMENT
SAFETY
FERROCYANIDES
MOISTURE
SLUDGES
RHEOLOGY
RADIOACTIVE WASTE STORAGE
RADIOACTIVE WASTE PROCESSING
CLAYS
MATERIALS TESTING
THERMODYNAMIC PROPERTIES
EXPERIMENTAL DATA
054000
052000
HEALTH AND SAFETY
WASTE MANAGEMENT