22 thoughts on “Researchers discover efficient and sustainable way to filter salt and metal ions from water

  1. soulctcher February 12, 2018 / 8:08 pm

    I’ll just sit back and wait for Reddit to tell me why this really isn’t viable.

  2. TheCrimsonKing February 12, 2018 / 8:08 pm

    > With further development, these membranes have significant potential to perform the dual functions of removing salts from seawater and separating metal ions in a highly efficient and cost effective manner, 

    The article is a lot less certain than the headline.

  3. dylanwil23 February 12, 2018 / 8:08 pm

    Working on a senior project right now in which we’re attempting to design a process to harvest lithium and produce Li2CO3 (10 ton/day) from oil field brines. The Smackover Formation would be a great source, from what I can tell. First idea was a selective adsorption of Li from brine using de-lithiated LMO, subsequent collection of Li from LMO and precipitation, etc. However, after doing a few initial calculations I found that we would need ~35 tons lambda MnO2 per 2 tons Li2CO3 produced (making somewhat generous assumptions regarding efficiency of the process). So it’s looking like a major revision is in order. Needless to say, my hopes rose when I saw the article title.

  4. CheesyLala February 12, 2018 / 8:08 pm

    So if we reach the point where we can de-salinate water, and potentially pump water around, using solar energy at a reasonably cheap price, then that solves some of the biggest problems we face, doesn’t it?

    Just think, if we can pump fresh water into areas of desert or high drought then we can grow crops and agriculture, grow jungles, grow forests, give millions more people a place to live – and that way solve climate change by creating several billion more trees and plants that would absorb C02, whilst also lowering the sea level slightly taking all the water to re-green the deserts, even potentially creating new habitats suitable for animal life.

    Strikes me that this would be one of the most transformative technologies we could create… or am I just over-imagining the benefits?

  5. disasterbot February 12, 2018 / 8:08 pm

    I like how they flip it to more profit potential for frackers from a clean water angle

  6. sleepeejack February 12, 2018 / 8:08 pm

    Huge, if true. Lithium is a major component of renewable energy infrastructure, but itself is not sustainable to mine, and expensive. If we could turn saltwater into fresh water and lithium salts, we could curb water shortages and make energy a lot cheaper and more sustainable at the same time.

    Fingers crossed on this one.

  7. meturhan February 12, 2018 / 8:08 pm

    I hope this can be baby steps for effective process to produce drinkable water from oceans. We need it.

  8. eageralto February 12, 2018 / 8:08 pm

    Whoa. There’ll be enough salt to last forever.

  9. the_midwatcher February 12, 2018 / 8:08 pm

    Where I Work, we use a personal nuclear plant. One of the fun things we use it for is reverse osmosis, which turns salt water into the cleanest damn water I’ve ever had.

  10. phlipped February 12, 2018 / 8:08 pm

    Wow – they’ll have enough salt to last forever!

  11. Vanimal247365 February 12, 2018 / 8:08 pm

    So if we start drinking the ocean before glaciers melt, we can solve the rising sea level issue?

  12. Money_Bags97 February 12, 2018 / 8:08 pm

    I can’t wait to see this in action in 30 years!

  13. broFenix February 12, 2018 / 8:08 pm

    Hmm, I did research as an undergraduate student on MOF’s. Pretty amazing adsorptive properties. I’m glad they can be put to practical use.

  14. JahRockasha February 12, 2018 / 8:08 pm

    They didn’t just discover mofs have ion selectivity. A group at my school has been working on cation exchange mofs for like ten years.

  15. Herioz February 12, 2018 / 8:08 pm

    Is There a efficient way to filter salt from people?

  16. metric79 February 12, 2018 / 8:08 pm

    Hurry up science! I need this done on my brake fluid! Unless it’s more expensive than 89.99. That’s what Jiffy Lube charges.

  17. The_Celtic_Chemist February 12, 2018 / 8:08 pm

    I understand if this is expensive. My question is: Is it less expensive than flying our entire civilization to Mars after terraforming it? Yeah? Then I’ll take it.

  18. patpowers1995 February 12, 2018 / 8:08 pm

    In the future mining operations may generate clean water from dirty water! Talk about reverse osmosis!

  19. tubaflub February 12, 2018 / 8:08 pm

    So they developed a new zeolite?

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