Slurry growth, gas retention, and flammable gas generation by Hanford radioactive waste tanks: Synthetic waste studies, FY 1991

Technical Report · Sat Aug 01 04:00:00 EDT 1992

DOI:https://doi.org/10.2172/6668108· OSTI ID:6668108

Bryan, S A; Pederson, L R; Ryan, J L; Scheele, R D; Tingey, J M

Of 177 high-level waste storage tanks on the Hanford Site, 23 have been placed on a safety watch list because they are suspected of producing flammable gases in flammable or explosive concentrate. One tankin particular, Tank 241-SY-101 (Tank 101-SY), has exhibited slow increases in waste volume followed by a rapid decrease accompanied by venting of large quantities of gases. The purpose of this study is to help determine the processes by which flammable gases are produced, retained, and eventually released from Tank 101-SY. Waste composition data for single- and double-shell waste tanks on the flammable gas watch listare critically reviewed. The results of laboratory studies using synthetic double-shell wastes are summarized, including physical and chemical properties of crusts that are formed, the stoichiometry and rate ofgas generation, and mechanisms responsible for formation of a floating crust.

• Research Organization: Pacific Northwest Lab., Richland, WA (United States)
• Sponsoring Organization: DOE; USDOE, Washington, DC (United States)
• DOE Contract Number: AC06-76RL01830
• OSTI ID: 6668108
• Report Number(s): PNL-8169; ON: DE93005120
• Country of Publication: United States
• Language: English

Related Subjects

052002* -- Nuclear Fuels-- Waste Disposal & Storage
12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
CHEMICAL COMPOSITION
COMBUSTION PROPERTIES
COMPLEXES
CONTAINERS
DISPERSIONS
ELEMENTS
FERROCYANIDES
FLAMMABILITY
FLUIDS
GASES
HIGH-LEVEL RADIOACTIVE WASTES
HYDROGEN
IRON COMPLEXES
MATERIALS
MICROORGANISMS
MIXTURES
NONMETALS
RADIOACTIVE MATERIALS
RADIOACTIVE WASTES
SIMULATION
SLURRIES
STORAGE
SUSPENSIONS
TANKS
TRANSITION ELEMENT COMPLEXES
UNDERGROUND STORAGE
VENTILATION
WASTES