Crust growth and gas retention in synthetic Hanford waste

Conference · Sun Mar 01 04:00:00 EST 1992

OSTI ID:5649472

Bryan, S A; Pederson, L R; Scheele, R D

The focus of the work described here is to examine the principal contributing factors leading to slurry growth and gas retention within waste from a particular high-level waste tanks on the Hanford Site. Laboratory studies of aged synthetic waste have shown that the waste retains gases in the form of bubble attachment to solid particles. This attachment phenomenon is related to the presence of organic constituents (HEDTA, EDTA, and citrate) added to the waste matrix. The mechanism for bubble attachment is related to the hydrophobic surface produced by the organic complexant. The formation of a stable gas bubble/solid interaction is believed to be responsible for crust flotation and gas retention in the synthetic waste used here.

• Research Organization: Pacific Northwest Lab., Richland, WA (United States)
• Sponsoring Organization: DOE; USDOE, Washington, DC (United States)
• DOE Contract Number: AC06-76RL01830
• OSTI ID: 5649472
• Report Number(s): PNL-SA-19965; CONF-920307--53; ON: DE92010494
• Country of Publication: United States
• Language: English

Related Subjects

052002* -- Nuclear Fuels-- Waste Disposal & Storage
054000 -- Nuclear Fuels-- Health & Safety
11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS
12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
BUBBLES
COMBUSTION PROPERTIES
CONTAINERS
FLAMMABILITY
FLUIDS
GAS ANALYSIS
GASES
HANFORD RESERVATION
INTERACTIONS
MANAGEMENT
NATIONAL ORGANIZATIONS
RADIOACTIVE WASTE MANAGEMENT
RADIOACTIVE WASTE STORAGE
RISK ASSESSMENT
SAFETY
SOLIDS
STORAGE
SURFACE PROPERTIES
SURFACE TENSION
TANKS
US DOE
US ERDA
US ORGANIZATIONS
WASTE MANAGEMENT
WASTE STORAGE