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      OR/K ANS February Dinner Meeting (Joint with AIChE) in Knoxville

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      February 20, 2018

      Tuesday   5:30 PM

      200 East Jackson Avenue
      Knoxville, Tennessee 37915

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      OR/K ANS February Dinner Meeting (Joint with AIChE)

      Speaker: Dr. Guillermo Daniel Del Cul, Oak Ridge National Laboratory Bill Del Cul was elected a fellow of the American Nuclear Society (ANS) in the Winter of 2017, cited for his outstanding accomplishments in actinide and fission product separations, uranium processing chemistry and advanced fuel cycle development. Del Cul's long career in nuclear science and engineering includes research and development activities in actinide separations, processing of used nuclear fuel, high temperature molten salts, technical support of enrichment activities and national security-related research. He is a distinguished research staff member in the Process Engineering & Research group of Oak Ridge National Laboratory's Nuclear Security and Isotopes Technology Division was also honored with the Glenn T. Seaborg Award at the 40th Actinide Separations Conference in 2016. Topic: Recycle and Reuse of Most Components in Used Nuclear Fuels to Minimize Nuclear Wastes that Would Require Geological Disposal Traditionally, the term reprocessing describes the process of recovering plutonium from used fuel or targets. Since it evolved from the production and extraction of plutonium for nuclear weapons usually arises negative connotations. At present however, the nations that possess nuclear weapons have an excess of weapons grade plutonium and except for very limited exceptions, the only reprocessing activities underway in the world relate to the recovery of plutonium from commercial reactors that is recycled as new fuel in commercial reactors to produce electricity.  Disposal of spent fuel or high level wastes from these commercial reactors requires geological repositories that are very expensive and very difficult to site for socio-political reasons.  Due to this fact, there is a significant incentive to minimize the wastes requiring geological disposal.  This is a new paradigm for the term “reprocessing” that no longer refers to the recovery of Pu for military or commercial use but on the general concept of preparing reusable products or low-level-waste streams that are easier to dispose at much lower cost.  An example of this new paradigm is the recovery and reuse of uranium as practiced in France. Other components that could be recovered for reuse or transformed into a low level waste are the zirconium cladding, fuel assemblies hardware, minor actinides, noble gases (Xe and 85Kr), noble metals (Pd, Ru, Rh, Mo), light rare earths,  etc.  Overall, greater than 90 to 97% of the used fuel can be processed for reuse or rendered a low level waste for disposal.

      Categories: Science

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