Ceramicrete stabilization of U-and Pu-bearing materials

Wagh, Arun S; Maloney, M David; Thompson, Gary H

Title: Ceramicrete stabilization of U-and Pu-bearing materials

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Abstract

A method of stabilizing nuclear material is disclosed. Oxides or halides of actinides and/or transuranics (TRUs) and/or hydrocarbons and/or acids contaminated with actinides and/or TRUs are treated by adjusting the pH of the nuclear material to not less than about 5 and adding sufficient MgO to convert fluorides present to MgF.sub.2; alumina is added in an amount sufficient to absorb substantially all hydrocarbon liquid present, after which a binder including MgO and KH.sub.2PO.sub.4 is added to the treated nuclear material to form a slurry. Additional MgO may be added. A crystalline radioactive material is also disclosed having a binder of the reaction product of calcined MgO and KH.sub.2PO.sub.4 and a radioactive material of the oxides and/or halides of actinides and/or transuranics (TRUs). Acids contaminated with actinides and/or TRUs, and/or actinides and/or TRUs with or without oils and/or greases may be encapsulated and stabilized by the binder.

Inventors:

Wagh, Arun S ^[1]; Maloney, M David ^[2]; Thompson, Gary H ^[3]

Naperville, IL
Evergreen, CO
Thornton, CO

Issue Date:: 2007-11-13

Research Org.:: Argonne National Laboratory (ANL), Argonne, IL (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 919888

Patent Number(s):: 7294291

Application Number:: 10/782,278

Assignee:: UChicago Argonne, LLC (Chicago, IL)

Patent Classifications (CPCs):: C - CHEMISTRY C04 - CEMENTS C04B - LIME, MAGNESIA

G - PHYSICS G21 - NUCLEAR PHYSICS G21F - PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT

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C - CHEMISTRY C04 - CEMENTS C04B - LIME, MAGNESIA
C04B14/304 - {Magnesia}
C04B18/0463 - {Hazardous waste}
C04B18/08 - Flue dust {, i.e. fly ash}
C04B2111/00767 - {for waste stabilisation purposes}
C04B22/0013 - {Boron compounds}
C04B28/34 - containing cold phosphate binders

G - PHYSICS G21 - NUCLEAR PHYSICS G21F - PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT
G21F9/16 - by fixation in stable solid media {
G21F9/162 - {in an inorganic matrix, e.g. clays, zeolites}
G21F9/165 - {Cement or cement-like matrix

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02W - CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
Y02W30/91 - Use of waste materials as fillers for mortars or concrete

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DOE Contract Number:: W-31109-ENG-38

Resource Type:: Patent

Country of Publication:: United States

Language:: English

Citation Formats


                    Wagh, Arun S, Maloney, M David, and Thompson, Gary H. Ceramicrete stabilization of U-and Pu-bearing materials.  United States: N. p., 2007. 
        Web.

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                    Wagh, Arun S, Maloney, M David, & Thompson, Gary H. Ceramicrete stabilization of U-and Pu-bearing materials.  United States.

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                    Wagh, Arun S, Maloney, M David, and Thompson, Gary H. Tue .  
        "Ceramicrete stabilization of U-and Pu-bearing materials".  United States.  https://www.osti.gov/servlets/purl/919888.

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@article{osti_919888,

  title        = {Ceramicrete stabilization of U-and Pu-bearing materials},

  author       = {Wagh, Arun S and Maloney, M David and Thompson, Gary H},

  abstractNote = {A method of stabilizing nuclear material is disclosed. Oxides or halides of actinides and/or transuranics (TRUs) and/or hydrocarbons and/or acids contaminated with actinides and/or TRUs are treated by adjusting the pH of the nuclear material to not less than about 5 and adding sufficient MgO to convert fluorides present to MgF.sub.2; alumina is added in an amount sufficient to absorb substantially all hydrocarbon liquid present, after which a binder including MgO and KH.sub.2PO.sub.4 is added to the treated nuclear material to form a slurry. Additional MgO may be added. A crystalline radioactive material is also disclosed having a binder of the reaction product of calcined MgO and KH.sub.2PO.sub.4 and a radioactive material of the oxides and/or halides of actinides and/or transuranics (TRUs). Acids contaminated with actinides and/or TRUs, and/or actinides and/or TRUs with or without oils and/or greases may be encapsulated and stabilized by the binder.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {2007},

  month        = {11}

}

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