| Project Detail |
The U.S. has accumulated approximately 86,000 metric tons of used nuclear fuel (UNF) from light-water reactors (LWRs), a value that increases by approximately 2,000 tons per year. This UNF is destined for permanent disposal even though more than 90% of its energy remains. Innovative technologies that enable the secure, economical reprocessing of the nation’s LWR UNF could substantially reduce the volume, heat load, and radiotoxicity of waste requiring permanent disposal while providing a valuable and sustainable fuel feedstock for advanced fast reactors. CURIE seeks to research innovative separations technologies, material accountancy, and online monitoring technologies, as well as designs for a reprocessing facility that will enable group recovery of actinides for AR feedstocks, incorporate in situ process monitoring, minimize waste volumes, enable a 1¢/kilowatt-hour (kWh) fuel cost for AR fuels, and maintain disposal costs in the range of 0.1¢/kWh.
Project Innovation + Advantages:
CurioTM will research the advanced head-end processing and fluorination steps of its UNF recycling process, NuCycleTM, at the laboratory scale to derisk the NuCycle process. NuCycle is a modular, integrated, compact, and proliferation-hardened process designed to avoid production of pure plutonium (Pu) streams and dramatically reduce waste volumes compared with existing processes. NuCycle significantly reduces facility footprints, leverages well-understood chemical processes, and accommodates a variety of fuel types, including molten salts and nitride fuels. The advanced head-end processing and fluorination steps will produce UF6 that is suitable for re-enrichment while keeping plutonium with the remaining actinides and fission products for further processing. Using safeguards-by-design principles, Curio will also design a material control and accountability system for the NuCycle facility that will enable <1% uncertainty in actinide accounting.
Potential Impact:
By enabling the secure and economical recycling of the nation’s inventory of LWR UNF, CURIE will have the following impacts: |
