Nano Hydrogel for Surface Removal of Radioactive Contamination

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(A demonstration of Argonne Super Gel)



Argonne Super Gel (ASG) is a nanoparticle hydrogel used to clean radionuclides, particularly cesium-137, from buildings and structures in the event of a radiological release.  Research has proven AGS effective at removing 80-100% of contamination, depending on the surface, through the ionization and desorption of cesium and other radionuclides embedded in the structures surface.  The nanoparticles act to sequester the radionuclides in the gel, which is then removed with a wet/dry vacuum and dehydrated to trap the contaminants as low level radioactive waste. 

The product itself is non-toxic, and is comprised of two powders mixed with water.  The product does not damage the surface during application, and leaves no residue after removal.  The gel was developed for terrorism preparedness, but is applicable to any radiological release that leaves radioactive contaminants on structures and surfaces.  This type of product may eventually prove useful in the remediation of radioactive materials from nuclear reactor accidents and decommissioning.

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Removes contamination from solid surfaces through mobilization and sequestration of radionuclides.



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Gel could remove radioactive particles from surfaces that are deemed recoverable or irreplaceable. This spill remediation technology offers promise to contaminated sites for removal and secure disposal of contaminated materials.


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