• LordKitsuna@lemmy.world
      link
      fedilink
      English
      arrow-up
      0
      ·
      6 months ago

      Desalination of water is basically an endless supply of salt, we can’t just push it back into the ocean because that increases the salt concentration in the ocean which is actually not great and when done at scale. But we didn’t really have anywhere else to put the salt because there’s already an abundance of it for use elsewhere but if we start using salt for Batteries it would be a great place for salt from desalination to go

      • JohnDClay@sh.itjust.works
        link
        fedilink
        English
        arrow-up
        0
        ·
        6 months ago

        Desalination is also a good way of getting lithium right now, it’s just a bit less cost effective than surface mining dried oceans currently. Maybe if sodium demand also goes up, it’ll be effective to capture desalination salts for both lithium and sodium.

      • ✺roguetrick✺@lemmy.world
        link
        fedilink
        English
        arrow-up
        0
        ·
        edit-2
        6 months ago

        can’t just push it back into the ocean because that increases the salt concentration in the ocean which is actually not great and when done at scale

        Only locally, it’s absolutely not a problem globally. That water will go back into the ocean soon enough. We’re not generally putting wastewater in aquifers. The same is true of lithium. Both sodium and lithium form salts that dissolve in water, so over time their biggest concentration is in the water and that’s why we refine it from salt flats.

        I don’t consider the refining of lithium to be a huge problem, other than the fact that it usually just means they’re trucking a bunch of water to the desert for concentration and evaporation ponds (or worse, using the local groundwater in the desert instead of trucking in desalinated water like they should be).

        • Flying Squid@lemmy.world
          link
          fedilink
          English
          arrow-up
          0
          ·
          6 months ago

          Only locally

          You make that sound like it isn’t an issue. Massive ocean die-offs in a localized area is still a very bad thing.

          There’s a reason why oil spills are treated with such seriousness. Globally, an oil spill is also not a problem.

          • ✺roguetrick✺@lemmy.world
            link
            fedilink
            English
            arrow-up
            0
            ·
            edit-2
            6 months ago

            It depends on how local we’re talking about. If you build a pipe out of the littoral zone into the ocean with multiple outputs you likely wouldn’t kill much of anything but a few plankton. The intake pipe is often worse than the output pipe for wildlife.

            For a place like, say, the the Persian Gulf, that uses oil for heat desal and gets their intake and output from a sea so it’s all littoral and doesn’t as quickly exchange it’s water with the ocean, of course it’s an environmental nightmare. It’s naturally saltier without desal because of the higher evaporation rate and small comparative inlet size of the straight of hormuz, but at this point its 25% saltier than the rest of the ocean thanks to that desal.

            • teddy2021@sh.itjust.works
              link
              fedilink
              English
              arrow-up
              0
              ·
              6 months ago

              Are you trying to spell literal? Not trying to be a dick, just unsure if you have a different word in mind.

              • ✺roguetrick✺@lemmy.world
                link
                fedilink
                English
                arrow-up
                0
                ·
                edit-2
                6 months ago

                I misspelled strait, but I was referring to the shallows that contain the vast majority of ocean life due to ease of photosynthesis with littoral. Much of the Persian Gulf is within these shallows. In a lot of ways it acts like a salty inland sea that exchanges some of it’s saltier water with fresher water from the ocean, but that’s limited by the size of the strait of Hormuz.