Published August 1994 | Version v1
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Concentration of Melton Valley Storage Tank surrogates with a wiped film evaporator

Creators

Description

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 104

Availability note (English)

MF available from INIS under the Report Number; Also available from OSTI as DE95001000; NTIS; US Govt. Printing Office Dep.

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Additional details

Publishing Information

Imprint Pagination
45 p.
Report number
ORNL/TM--12768

INIS

Country of Publication
United States
Country of Input or Organization
United States
INIS RN
26026569
Subject category
S12: MANAGEMENT OF RADIOACTIVE WASTES, AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES;
Resource subtype / Literary indicator
Numerical Data
Descriptors DEI
DECONTAMINATION; EFFICIENCY; EVAPORATION; EVAPORATORS; EXPERIMENTAL DATA; LOW-LEVEL RADIOACTIVE WASTES; ORNL; PERFORMANCE TESTING; PLANNING; RADIOACTIVE WASTE DISPOSAL; RADIOACTIVE WASTE PROCESSING; SIMULATION
Descriptors DEC
CLEANING; DATA; INFORMATION; MANAGEMENT; MATERIALS; NATIONAL ORGANIZATIONS; NUMERICAL DATA; PHASE TRANSFORMATIONS; RADIOACTIVE MATERIALS; RADIOACTIVE WASTES; TESTING; US AEC; US DOE; US ERDA; US ORGANIZATIONS; WASTE DISPOSAL; WASTE MANAGEMENT; WASTE PROCESSING; WASTES

Optional Information

Contract/Grant/Project number
Contract AC05-84OR21400
Funding organization
USDOE, Washington, DC (United States).