Prediction of mixer pump effectiveness for sludge mixing
Conference
·
OSTI ID:476607
- Pacific Northwest National Lab., Richland, WA (United States)
Jet mixer pumps will be used to suspend and mix the solids that have settled on the bottom of many radioactive waste storage tanks at the Department of Energy`s Hanford Site in southeastern Washington. A series of twenty-six tests were conducted in a 1/25-scale mock-up using simulated waste. The capability of the single, centrally located mixer pump to suspend a layer of cohesive tank sludge simulant was quantified and correlated to both the mixer pump jet properties and the physical properties of the simulated sludge. The data suggest that sludge that owes the majority of its shear strength to cohesive forces (rather than frictional forces) will exhibit a specific relationship between mobilization resistance and vane shear strength. Sludge that owes a greater fraction of its shear strength to frictional forces will mobilize more readily than predicted by the cohesive sludge correlation.
- DOE Contract Number:
- AC06-76RL01830
- OSTI ID:
- 476607
- Report Number(s):
- CONF-960804--Vol.3
- Country of Publication:
- United States
- Language:
- English
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