5% residue that is inert in just 300 years.
***Got a link on that project? Sounds intriguing.
Here’s just one LENR project:
LENR-Induced Transmutation of Nuclear Waste
Edward Esko*
http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.259.9261&rep=rep1&type=pdf
Abstract —
Quantum Rabbit (QR) research on the low-energy fusion and fission (low-energy nuclear reactions, or LENR) of various elements indicates
possible pathways for applying that process to reducing nuclear materials. In a New Energy Foundation (NEF)-funded test conducted at
Quantum Rabbit lab in Owls Head, Maine, QR researchers initiated a possible low-energy fission reaction in which 204Pb fissioned into 7Li
and 197Au (204Pb → 7Li + 197Au).1 This reaction may have been triggered by a low-energy fusion reaction in which 7Li fused with 32S to
form 39K (7Li + 32S → 19K). These results confirmed earlier findings showing apparent low-energy fusion and fission reactions.2 Moreover,
subsequent research with boron indicates apparent low-energy fusion reactions in which boron fuses with oxygen to form aluminum and
with sulfur to form scandium.3 At the same time, the QR group has achieved what appear to be low-energy transmutations of carbon using
carbon-arc under vacuum and in open air.4 The research group at QR believes these processes can be adapted to accelerate the natural decay
cycle of uranium-235, plutonium-239, radium-226 and the fission products cesium-137, iodine-129, technetium-99 and strontium-90 with
the long-term potential of reducing the threat posed by radioactive isotopes to human health and the environment
Everything radioactive in nuclear waste can be split by neutrons in a breeder or similar reactor. The only exceptions are strontium and cesium. These have such short half-lives that they are essentially inert in 300 years.
https://www.fastcompany.com/3043099/this-nuclear-reactor-eats-nuclear-waste (intrinsically safe, my choice, but article neglects to mention the 300 year residual)
https://www.nytimes.com/1991/10/29/science/modern-alchemists-transmute-nuclear-waste.html (Gee, we could have started 30 years ago...)
https://www.nature.com/articles/486323b
https://newatlas.com/hitachi-reactor/33585/ (It could even be done with existing boiling water reactors)
http://transcriptvids.com/v/rv-mFSoZOkE.html (That approach doesn’t even burn the fuel, just extracts the components.)