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Title: Segregation of Uranium Metal from K Basin Sludge: Results from Vendor Testing

Abstract

Under contract to Fluor Hanford, Pacific Northwest National Laboratory directed laboratory, bench-scale, and pilot-scale vendor testing to evaluate the use of commercial gravity mineral concentration technology to remove and concentrate uranium metal from Hanford K Basin sludge. Uranium metal in the sludge corrodes by reacting with water to generate heat and hydrogen gas, and may constrain shipment and disposal of the sludge to the Waste Isolation Pilot Plant as remote-handled transuranic waste. Separating uranium metal from the K Basin sludge is expected to be similar to some gold recovery operations. Consequently, the capabilities of commercial gravity mineral concentration technologies were assessed for their applicability to K Basin sludge streams. Overall, the vendor testing demonstrated the technical feasibility of using gravity concentration equipment to separate the K Basin sludge into a high-volume uranium metal-depleted stream and a low-volume uranium metal-rich stream. I n test systems, more than 96% of the uranium metal surrogate was concentrated into 10 to 30% of the sludge mass (7 to 24% of the sludge volume). With more prototypical equipment and stream recycle, higher recoveries may be achieved.

Authors:
; ;
Publication Date:
Research Org.:
Pacific Northwest National Lab., Richland, WA (US), Environmental Molecular Sciences Laboratory (US)
Sponsoring Org.:
US Department of Energy (US)
OSTI Identifier:
15009660
Report Number(s):
PNNL-14845
9304; 830403000; TRN: US0405708
DOE Contract Number:  
AC05-76RL01830
Resource Type:
Technical Report
Resource Relation:
Other Information: PBD: 21 Sep 2004
Country of Publication:
United States
Language:
English
Subject:
11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS; 08 HYDROGEN; 12 MANAGEMENT OF RADIOACTIVE WASTES, AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES; GOLD; HYDROGEN; PHOSPHORS; SEGREGATION; SLUDGES; TESTING; URANIUM; WATER; WIPP; SPENT FUELS; NUCLEAR FUELS; ENVIRONMENTAL MOLECULAR SCIENCES LABORATORY; HANFORD K BASIN SLUDGE; K EAST (KE) BASIN; K WEST (KW) BASIN; SPENT NUCLEAR FUEL; SIMULANT; SEPARATION; URANIUM METAL SEGREGATION; GRAVITY MINERAL CONCENTRATION; WASTE ISOLATION PILOT PLANT; DISPOSAL; REMOTE-HANDLED TRANSURANIC WASTE; WASTE TREATMENT; ALTERNATIVE TREATMENT; SHAKER TABLE; CENTRIFUGAL CONCENTRATOR; JIG

Citation Formats

Schmidt, Andrew J, Elmore, Monte R, and Delegard, Calvin H. Segregation of Uranium Metal from K Basin Sludge: Results from Vendor Testing. United States: N. p., 2004. Web. doi:10.2172/15009660.
Schmidt, Andrew J, Elmore, Monte R, & Delegard, Calvin H. Segregation of Uranium Metal from K Basin Sludge: Results from Vendor Testing. United States. doi:10.2172/15009660.
Schmidt, Andrew J, Elmore, Monte R, and Delegard, Calvin H. Tue . "Segregation of Uranium Metal from K Basin Sludge: Results from Vendor Testing". United States. doi:10.2172/15009660. https://www.osti.gov/servlets/purl/15009660.
@article{osti_15009660,
title = {Segregation of Uranium Metal from K Basin Sludge: Results from Vendor Testing},
author = {Schmidt, Andrew J and Elmore, Monte R and Delegard, Calvin H},
abstractNote = {Under contract to Fluor Hanford, Pacific Northwest National Laboratory directed laboratory, bench-scale, and pilot-scale vendor testing to evaluate the use of commercial gravity mineral concentration technology to remove and concentrate uranium metal from Hanford K Basin sludge. Uranium metal in the sludge corrodes by reacting with water to generate heat and hydrogen gas, and may constrain shipment and disposal of the sludge to the Waste Isolation Pilot Plant as remote-handled transuranic waste. Separating uranium metal from the K Basin sludge is expected to be similar to some gold recovery operations. Consequently, the capabilities of commercial gravity mineral concentration technologies were assessed for their applicability to K Basin sludge streams. Overall, the vendor testing demonstrated the technical feasibility of using gravity concentration equipment to separate the K Basin sludge into a high-volume uranium metal-depleted stream and a low-volume uranium metal-rich stream. I n test systems, more than 96% of the uranium metal surrogate was concentrated into 10 to 30% of the sludge mass (7 to 24% of the sludge volume). With more prototypical equipment and stream recycle, higher recoveries may be achieved.},
doi = {10.2172/15009660},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2004},
month = {9}
}

Technical Report:

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