“Norront is pursuing muon catalyzed fusion (which is probably NOT the best utilization of muons, given the high cost of heavy water) but it is not too late to change horses.”
A separation process based upon a material with selective adsorption for light nuclei, provides for a 11:1 single pass concentration of deuterium or tritium from a mixture containing protium.
“Capture of heavy hydrogen isotopes in a metal-organic framework with active Cu(I) sites”—nature communications:
https://www.nature.com/articles/ncomms14496