Has anyone ever given any thought to trying to capture all the floodwaters that seem to be increasing lately, and moving them to the more drought affected areas?

  • RegalPotoo@lemmy.world
    link
    fedilink
    English
    arrow-up
    33
    ·
    6 months ago

    On top of the logistics of moving massive amounts of water around, flood water is typically highly contaminated - by their nature, floods sweep up everything in their path, which typically will include things like:

    • Soil and sand (a massive pain to filter out)
    • Agricultural run off (manure, pesticides, fertilizer, …)
    • Raw sewage (from treatment plants that tend to be near waterways, or just from damaged infrastructure)
    • Industrial wastes (from existing plants, or old contaminated sites)

    Infectious disease is a major problem after a flood, partly because of infrastructure damage but also just because so many people will have come in contact with contaminated water - you don’t want to irrigate your crops with flood water, much less drink it

  • antlion@lemmy.dbzer0.com
    link
    fedilink
    arrow-up
    26
    ·
    6 months ago

    In California we have a project called Flood-MAR, which stands for Managed Aquifer Recharge. Farmers who have land that wont be damaged by floods volunteer to pump lots of water onto their lands during floods. This reduces the downstream flooding slightly, and the water soaks deep into the ground for safe keeping until it needs to be pumped up during a drought.

  • ____@infosec.pub
    link
    fedilink
    arrow-up
    21
    ·
    6 months ago

    Seems like it would be a nightmare to purify. Perhaps useful for agricultural applications, but for drinking and household use…. Most water supplies don’t have e.g., human bodies floating in them.

    Not a scientist, happy to be proven wrong here, but that’s my gut.

    • InvisibleShoe@lemmy.world
      link
      fedilink
      arrow-up
      23
      ·
      6 months ago

      Not just bodies. When working around flood waters its recommended to wear hazmat gear because the water is contaminated by human waste from septic tanks, dead animals, petrol, oil, various poisons and fertilizers, chemicals from stuff like paint, etc.

      Probably could be cleaned but even for agri use it would be crazy expensive.

      • Sam_Bass@lemmy.worldOP
        link
        fedilink
        arrow-up
        4
        ·
        6 months ago

        Pretty sure there are existing methods of filtering such things out but i havent looked into it that deep(no pun intended)

        • TranquilTurbulence@lemmy.zip
          link
          fedilink
          arrow-up
          3
          ·
          6 months ago

          If you filter the water through some sand, soil etc, it’s clean enough for many uses. There are systems that treat toilet water this way and then release the water into the environment. You just need lots of land in order to filter a small volume of water, so this method doesn’t really scale up very well.

    • Sam_Bass@lemmy.worldOP
      link
      fedilink
      arrow-up
      2
      arrow-down
      1
      ·
      edit-2
      6 months ago

      I know its not really comparable, but seawater has almost as many pollutants in it and governments are actively researching desalination tech

  • NeoNachtwaechter@lemmy.world
    link
    fedilink
    arrow-up
    15
    ·
    6 months ago

    Flood water is a terrible material.

    It is full of sand, dirt, plants, animals (dead and alive), chemicals, germs of all kinds, body parts, dangerous pieces of junk…

    Definitely not worth the effort. You want nothing else but to get away from it.

  • BarqsHasBite@lemmy.world
    link
    fedilink
    arrow-up
    10
    ·
    edit-2
    6 months ago

    Moving? No. But apparently an early benefit of dams was to provide water throughout the year. Might see more of that.

    Moving water is tricky. If you’re lucky you can move it downhill, but I expect the situations where you can do that from flood to drought is not common. Moving uphill is pretty much out because it’ll take too much energy.

  • Today@lemmy.world
    link
    fedilink
    arrow-up
    8
    ·
    6 months ago

    Some cities catch flood water, hold it, and release it to reservoirs, rivers, etc. later. Chicago’s is interesting and Dallas has a GIANT water vault under Central Expressway. I think most of our water comes from dead (animal) soup.

  • CrimeDad@lemmy.crimedad.work
    link
    fedilink
    English
    arrow-up
    4
    ·
    6 months ago

    If the price is right water can be delivered anywhere. Conveniently, places that suffer from droughts also sometimes suffer from floods, so it can just be saved for later rather than delivered anywhere.

      • ChonkyOwlbear@lemmy.world
        link
        fedilink
        arrow-up
        9
        ·
        6 months ago

        a giant underground storage tank

        That’s basically what groundwater is already.

        The trick isn’t storing it. The earth does that naturally. The trick is moving it where there isn’t enough.

  • ironhydroxide@sh.itjust.works
    link
    fedilink
    English
    arrow-up
    2
    arrow-down
    2
    ·
    6 months ago

    Perfect idea. Let’s drop a huge pipeline from the Mississippi all the way through to California. The energy to build the pipeline, and run the pumping stations will certainly not add to the already problematic energy causing climate change causing these droughts that we’re “fixing” with this huge pipeline.

    /s