https://www.msn.com/en-us/weather/topstories/russia-s-820-mw-sodium-cooled-reactor-burns-next-gen-actinide-nuclear-fuel-successfully/ar-AA229IGY

The goal of this technology is to reduce the volume of radioactive waste that requires deep geological disposal. Rosatom indicated that eliminating minor actinides could allow nuclear waste to reach radiation equivalence with the original uranium feedstock hundreds of times faster than natural decay.