Concentration of Melton Valley Storage Tank surrogates with a wiped film evaporator

Technical Report · Mon Aug 01 04:00:00 EDT 1994

DOI:https://doi.org/10.2172/10187377· OSTI ID:10187377

Boring, M D; Farr, L L; Fowler, V L; Hewitt, J D

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., 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
• Country of Publication: United States
• Language: English

Related Subjects

052001
12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
DECONTAMINATION
EFFICIENCY
EVAPORATION
EVAPORATORS
EXPERIMENTAL DATA
LOW-LEVEL RADIOACTIVE WASTES
ORNL
PERFORMANCE TESTING
PLANNING
RADIOACTIVE WASTE DISPOSAL
RADIOACTIVE WASTE PROCESSING
SIMULATION
WASTE PROCESSING