Colloidal Agglomerates in Tank Sludge [electronic resource] : Impact on Waste Processing

Published:: Washington, D.C. : United States. Dept. of Energy. Office of Environmental Management, 1999.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description:: vp : digital, PDF file
Additional Creators:: Pacific Northwest National Laboratory (U.S.), United States. Department of Energy. Office of Environmental Management, and United States. Department of Energy. Office of Scientific and Technical Information

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Summary:

Disposal of millions of gallons of existing radioactive wastes in underground storage tanks is a major remediation activity for the United States Department of Energy. These wastes include a substantial volume of insoluble sludges consisting of submicron colloidal particles. Processing these sludges under the proposed processing conditions presents unique challenges in retrieval, transport, separation, and solidification of these waste streams. Depending on processing conditions, these colloidal particles can form agglomerated networks having high viscosities that could clog transfer lines or produce high volumes of low-density sediments that interfere with solid-liquid separations. Under different conditions, these particles can be dispersed to form very fine suspended particles that do not settle. Given the wide range of waste chemistries present at Department of Energy sites, it is impractical to measure the properties of all treatment procedures. The underlying principle s of colloid chemistry and physics were studied to provide data that would make it possible to predict and eventually control the physical properties of sludge suspensions and sediment layers in tank wastes and other waste processing streams.

Report Numbers:

E 1.99:emsp-54628
emsp-54628

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Note:

Published through SciTech Connect.
12/31/1999.
"emsp-54628"
Keefer, K.D.; Berg, John D.; Virden, J.W.; Rector, D.R.; Tingey, Joel M.; Lea, A.S.; Stenkamp, S.

Type of Report and Period Covered Note:

Final; 12/31/1999 - 12/31/1999

Funding Information:

EMSP 54628

View MARC record | catkey: 14140956