Updated Volumetric Expansion Factors for K Basin Sludge During Storage

Schmidt, Andrew J. (BATTELLE (PACIFIC NW LAB)) ; Delegard, Calvin H. (BATTELLE (PACIFIC NW LAB))

Pacific Northwest National Laboratory (U.S.)

关键词: Uranium Oxides Bubbles;    Volumetric Expansion;    Oxidation;    Expansion;    K West Basin;   

DOI  :  10.2172/15003645
RP-ID  :  PNNL-14228
RP-ID  :  AC06-76RL01830
RP-ID  :  15003645

美国|英语

来源: UNT Digital Library

【 摘 要 】

Sludge has accumulated in the K East (KE) and K West (KW) Basins at the Hanford Site. This sludge contains metallic uranium and uranium oxides that will corrode, hydrate, and generate and consume gases during containerized storage. From these corrosion reactions, two sludge expansion mechanisms can be expected: 1) expansion of the volume of the sludge solids from the generation of corrosion oxidation products that occupy more space than the starting-state sludge; and 2) expansion of the bulk sludge volume from the retention of hydrogen gas bubbles. This report provides a review and updated projections of the volumetric expansion occurring due to corrosion and gas retention during the containerized storage of K Basin sludge. New design and safety basis volume expansion values are provided for the following sludge streams: KW Floor, KW North Loadout Pit, KW canister, and fuel piece sludge.