The complexity with these technologies is 1) how you dispose of...

The complexity with these technologies is 1) how you dispose of the brine after you have taken the lithium out and 2) what chemicals you may put back into the environment. In terms of chemicals you are using organics (solvent extraction with Bateman) or phosphates with POSCO or Enirgi both have issues. In terms of brine disposal you will most likely dilute your own resource or someone else's with the re-injection of the barren brine back into the aquifers and shorten the project life.