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Shawn Connors's avatar

There is so much energy remaining in solid used nuclear fuel the stuff is more valuable than gold. It’s small in volume and for now safely stored in onsite dry cask by our nuclear plants. Nobody has ever been harmed from the storage or transportation of nuclear “waste.” It’s fine where it is. In the near future we can use most of it to power molten cooled reactors where the fuel is melted into the coolant and fissioned in the core. Medical isotopes and other valuable elements can be harvested from that used fuel adding to its value. And there are well known ways to exercise proliferation mitigation. After a second use the nasty small amount of waste remains dangerously radioactive for shorter time frames (a couple hundred years) and can be placed in deep borehole repositories, no need to build huge underground caverns. See the work going on at Argonne National Labs.

https://www.anl.gov/topic/nuclear-fuel-recycling

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