Concentration of Melton Valley Storage Tank surrogates with a wiped film evaporator
This report describes experiments to determine whether a wiped film evaporator (WFE) might be used to concentrate low-level liquid radioactive waste (LLLW). Solutions used in these studies were surrogates that contain no radionuclides. The compositions of the surrogates were based on one of Oak Ridge National Laboratory`s (ORNL`s) Melton Valley Storage Tanks (MVSTs). It was found that a WFE could be used to concentrate LLLW to varying degrees by manipulating various parameters. The parameters studied were rotor speed, process fluid feed temperature and feed rate, and evaporator temperature. Product consistency varied from an unsaturated liquid to a dry powder. Volume reductions up to 68% were achieved. System decontamination factors were consistently in the range of 10{sup 4}.
- Research Organization:
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC05-84OR21400
- OSTI ID:
- 10187377
- Report Number(s):
- ORNL/TM-12768; ON: DE95001000; TRN: 94:021041
- Resource Relation:
- Other Information: PBD: Aug 1994
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
EVAPORATORS
PERFORMANCE TESTING
LOW-LEVEL RADIOACTIVE WASTES
EVAPORATION
ORNL
RADIOACTIVE WASTE PROCESSING
DECONTAMINATION
EFFICIENCY
RADIOACTIVE WASTE DISPOSAL
PLANNING
SIMULATION
EXPERIMENTAL DATA
052001
WASTE PROCESSING