Offers better brine handling and produces higher-purity water, making it ideal for offshore green hydrogen production. Sustainable and efficient solution with low environmental impact.

  • Flying Squid@lemmy.world
    link
    fedilink
    English
    arrow-up
    10
    ·
    1 year ago

    How do you handle the brine? “Minimal amounts” of brine is not an answer. What’s a minimal amount? What are you going to do with it? If you dump it back in the ocean, you increase salinity.

    • apex32@lemmy.world
      link
      fedilink
      English
      arrow-up
      4
      ·
      1 year ago

      Why is increasing salinity of the ocean bad? Doesn’t that happen all the time on a much greater scale as ocean water evaporates into the atmosphere?

    • Stoneykins [any]@mander.xyz
      link
      fedilink
      English
      arrow-up
      4
      ·
      1 year ago

      I can’t find a better explanation anywhere for how it works than “it uses condensation”

      So I have to guess the seawater is evaportated directly from the waters surface or something, which would just leave all the salts in there. That would be exactly as problematic as a traditional desalination plant pumping it’s brine back into the ocean. Maybe my guess about how it works is wrong though.

      • Flying Squid@lemmy.world
        link
        fedilink
        English
        arrow-up
        1
        ·
        1 year ago

        Yeah, it seems to me that you only have three options when it comes to the brine, and none of them are good- bury it and hope it doesn’t get into the water table, leave it where it is and hope it doesn’t leak, or dump it back in the ocean and increase ocean salinity. I don’t see another option.

        • Stoneykins [any]@mander.xyz
          link
          fedilink
          English
          arrow-up
          3
          ·
          edit-2
          1 year ago

          I wonder how expensive shipping brine would be… Probably very until we can get it ludicrously concentrated.

          But then I imagine we could take it somewhere like the middle of an uninhabitably hot desert and just fill up a low point in the topology. The combination of distance from where people live and dry hot conditions drying it out as fast as possible would possibly work?

          It wouldn’t be worth it unless shipping the brine was cheaper than just shipping clean water from places that have it to places that don’t. But who knows.

    • jimbolauski@lemmy.world
      link
      fedilink
      English
      arrow-up
      4
      ·
      1 year ago

      The brine solution will contain concentrated amounts of elements, like lithium. That concentrated solution may be economicly viable to process.

    • DrM@feddit.de
      link
      fedilink
      English
      arrow-up
      2
      ·
      1 year ago

      I don’t know if that works with brine. But what I know is that many regions fill old mines with salt and heat it up with excess energy from solar in the summer to use as general energy storage and for heat in the winter. That might be a good way to repurpose the brine

      • Flying Squid@lemmy.world
        link
        fedilink
        English
        arrow-up
        5
        ·
        1 year ago

        I said this in another comment- I’d be very worried it would get into the water table. That brine is not just salt. It’s also full of toxins. But maybe there are good solutions that I don’t know about.

        • DrM@feddit.de
          link
          fedilink
          English
          arrow-up
          2
          ·
          1 year ago

          Yeah it was just something I came up with. We can only hope that someone will find a good solution on what to do with it