Not sure what this has to do with my comment. Interestingly, soluble forms of uranium are anionic, so cation exchange resins (which remove lead, for example) d

Not sure what this has to do with my comment. Interestingly, soluble forms of uranium are anionic, so cation exchange resins (which remove lead, for example) don’t remove it. Apparently one can use an anion exchange resin or (I assume) a reverse osmosis filter.