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PseudoDave t1_jaht78f wrote

Interesting until you realize that most REE containing water sources which are viable are pH 3 and lower. So this method wouldnt work in vast majority of situations. There is tons of research on this and a very large DoD effort in this area far more economically viable than this currently. Cool work otherwise though...

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LummoxJR t1_jaiz94s wrote

Correcting the pH seems like a trivial problem to solve, though.

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PseudoDave t1_jaj29zq wrote

As the concentration is low. You need flow through and not batch, then need to release the water again. So you would have to change the pH on a fast flow through, capture, release, then recorrect pH for release after. There is proteins that work well at low pH for selective REE capture, LanM as an example.

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