Characterization and Dessolution Test results for the January 2005 DWPF Off Gas Condensate Tank Samples (U)

Technical Report · Fri Apr 08 04:00:00 EDT 2005

DOI:https://doi.org/10.2172/890174· OSTI ID:890174

Fellinger, T

The Off Gas Condensate Tank (OGCT) at the Defense Waste Processing Facility (DWPF) collects the condensate from the off-gas system of the melter. The condensate stream contains entrained solids that collect in the OGCT. Water from the OGCT is re-circulated to the Steam Atomized Scrubber and quencher and may provide a mechanism for re-introducing the particulates into the off-gas system. These particulates are thought to be responsible for plugging the downstream High Efficiency Mist Eliminator filters. Therefore, the OGCT needs to be periodically cleaned to remove the build-up of entrained solids. Currently, the OGCT is cleaned by adding nominally 12 wt% nitric acid with agitation to slurry the solids from the tank. Samples from the OGCT were sent to the Savannah River National Lab (SRNL) for characterization and to conduct tests to determine the optimum nitric acid concentration and residence time to allow more effective cleaning of the OGCT. This report summarizes the chemical and radionuclide results and the results from the nitric acid dissolution testing at 50% and 12% obtained for the OGCT sample.

• Research Organization: SRS
• Sponsoring Organization: DOE
• DOE Contract Number: AC09-96SR18500
• OSTI ID: 890174
• Report Number(s): WSRC-TR-2005-00141
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
CLEANING
CONDENSATES
DISSOLUTION
EFFICIENCY
GAS CONDENSATES
NITRIC ACID
OFF-GAS SYSTEMS
PARTICULATES
PLUGGING
RADIOISOTOPES
SCRUBBERS
STEAM
TANKS
TESTING
WASTE PROCESSING
WATER