Open AccessPerformance evaluation of rotating pump jet mixing of radioactive wastes in Hanford Tanks 241-AP-102 and -104
Author(s) -
Yasuo Onishi,
Kurtis P. Recknagle
Publication year - 1998
Language(s) - English
Resource type - Reports
DOI - 10.2172/290897
Subject(s) - hanford site , mixing (physics) , waste management , storage tank , radioactive waste , tempest , jet (fluid) , nuclear engineering , vitrification , environmental science , engineering , nuclear physics , physics , computer science , computer security , aerospace engineering , quantum mechanics
The purpose of this study was to confirm the adequacy of a single mixer pump to fully mix the wastes that will be stored in Tanks 241-AP-102 and -104. These Hanford double-shell tanks (DSTs) will be used as staging tanks to receive low-activity wastes from other Hanford storage tanks and, in turn, will supply the wastes to private waste vitrification facilities for eventual solidification. The TEMPEST computer code was applied to Tanks AP-102 and -104 to simulate waste mixing generated by the 60-ft/s rotating jets and to determine the effectiveness of the single rotating pump to mix the waste. TEMPEST simulates flow and mass/heat transport and chemical reactions (equilibrium and kinetic reactions) coupled together. Section 2 describes the pump jet mixing conditions the authors evaluated, the modeling cases, and their parameters. Section 3 reports model applications and assessment results. The summary and conclusions are presented in Section 4, and cited references are listed in Section 5