Effects of Globally Waste Disturbing Activities on Gas Generation, Retention, and Release in Hanford Waste Tanks

Stewart, Charles W. ; Fountain, Matthew S. ; Huckaby, James L. ; Mahoney, Lenna A. ; Meyer, Perry A. ; Wells, Beric E.

Pacific Northwest National Laboratory (U.S.)

关键词: Flammability;    Radioactive Wastes;    Emission;    Gases;    Materials Handling;   

DOI  :  10.2172/15020701
RP-ID  :  PNNL-13781 Rev. 3
RP-ID  :  AC05-76RL01830
RP-ID  :  15020701

美国|英语

来源: UNT Digital Library

【 摘 要 】

Various operations are authorized in Hanford single- and double-shell tanks that disturb all or a large fraction of the waste. These globally waste-disturbing activities have the potential to release a large fraction of the retained flammable gas and to affect future gas generation, retention, and release behavior. This report presents analyses of the expected flammable gas release mechanisms and the potential release rates and volumes resulting from these activities. The background of the flammable gas safety issue at Hanford is summarized, as is the current understanding of gas generation, retention, and release phenomena. Considerations for gas monitoring and assessment of the potential for changes in tank classification and steady-state flammability are given.