Whatever happened to the French-designed water filtration systems they were testing at Fukushima last year...? They were supposed to remove most of the radioac

Whatever happened to the French-designed water filtration systems they were testing at Fukushima last year...? They were supposed to remove most of the radioactive material from the water, leaving behind a thick radioactive sludge (nasty stuff, but much less volume to store) and much less radioactive water (safer to store and much less problematic if there are leaks etc). I remember they were having some clogging issues, but the system basically worked, and I'd have thought they would have worked out the kinks by now...