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A circular economy for salt that keeps rivers clean | Tina Arrowood

Visit to get our entire library of TED Talks, transcripts, translations, personalized Talk recommendations and more. During the winter of 2018-2019, one million tons of salt were applied to icy roads in the state of Pennsylvania alone. The salt from industrial uses like this often ends up in freshwater rivers, making their water undrinkable and…

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During the winter of 2018-2019, one million tons of salt were applied to icy roads in the state of Pennsylvania alone. The salt from industrial uses like this often ends up in freshwater rivers, making their water undrinkable and contributing to a growing global crisis. How can we better protect these precious natural resources? Physical organic chemist Tina Arrowood shares a three-step plan to keep salt out of rivers — and create a circular salt economy that turns industrial byproducts into valuable resources.

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38 Comments

38 Comments

  1. DVila Oficial

    November 7, 2019 at 3:45 pm

    quem tá deitado da like👴

    eu tbm tenho um canal 😴👶

  2. TheBakerGanimations

    November 7, 2019 at 3:45 pm

    Try it then do it

  3. BRIGHT MINDS

    November 7, 2019 at 3:46 pm

    Classy is when you have a lot to say, but choose to remain silent in front of idiots

  4. Caribe Naso

    November 7, 2019 at 3:55 pm

    We need clean water they is very nice of her to do that

  5. ali faris

    November 7, 2019 at 4:04 pm

    أرجو ترجمة الفيديو إلى العربية.

    • The Muckler

      November 7, 2019 at 7:59 pm

      Nobody is speaking noodle here 😂😂😂😂

    • وبالوالدين إحساناً

      November 8, 2019 at 8:27 am

      ali faris
      You can understand English👍

    • The Muckler

      November 9, 2019 at 8:34 pm

      @وبالوالدين إحساناً You write noodle and speak English….translate for him please….

  6. Doug A.

    November 7, 2019 at 4:08 pm

    The time to protect and restore our environment is long over due ..I fear it may be too little too late to save it unless drastic measures are taken! ..man is a very polluting animal and when it comes to profit nothing can stand in the way of it. Prosperity really does bring pollution ..there is just too much drain on the earth’s resources ..the more people the more the demand for resources ..seems to me that there is just too many people in the world and societies all over the world should start practicing responsible family planning ..there’s just too many kids being born to irresponsible people who don’t give a damn for the welfare of the unwanted children or the environment ..people have to be taught how to be responsible parents for many reasons not just because of the environment. Less people on earth will bring a better quality of life rather than on quantity ..the less the demand the less turmoil and strife in the world ..and the cleaner the environment will be ..it’s just common sense.

  7. Dave Anderson

    November 7, 2019 at 4:18 pm

    Sorry, We are about 30 years too late, and that is before you calculate in the population growth of the last 30 years

  8. Scott Sanders

    November 7, 2019 at 4:19 pm

    I remember a great lecture in architectural school about how less than 1 percent of Earth’s water is potable and that really struck me on how valuable our clean water is and to treat it accordingly.

    • Doug A.

      November 7, 2019 at 5:59 pm

      ..and that’s when the rich will grab it, horde it and make huge profits off the precious resource!

    • Scott Sanders

      November 7, 2019 at 6:03 pm

      @Doug A. I heard that Nestle Corp has been doing it already by draining the Great Lakes slowly and selling it off to other countries. Do not know if this is true, but saw it on a Jesse Ventura show.

    • Doug A.

      November 7, 2019 at 6:16 pm

      @Scott Sanders .it wouldn’t surprise me …and it will probably get worse.

    • Patrick B

      November 8, 2019 at 4:03 am

      There are many methods of getting potable water however. Desalination plants provide access to the salt water, and filtration plants to the non-potable freshwater.

      But yes, it is essential to keep water clean still.

  9. Neil Patton

    November 7, 2019 at 4:41 pm

    Fresh water is a valuable resource. If you want to actually find that value and optimize its distribution, then you must seek property in all things and allow the market to function. If you wish to continue the sub-optimal preservation and distribution that exists now, then keep applying the same state and collective solutions that violate rights and destroy prices. The state is not the answer.

  10. Jek

    November 7, 2019 at 4:44 pm

    The League of Legends community is a circular economy for salt.

  11. KushSYNdicate

    November 7, 2019 at 4:47 pm

    Yield is 1 gallon per 3 gallons wasted witch reverse osmosis. Cool idea with the salt application. The big thing is eliminating waste! I’m with this!

  12. My 1488D

    November 7, 2019 at 4:47 pm

    I can’t understand what did said this oldman.

    • The Muckler

      November 7, 2019 at 7:50 pm

      She definitely looks like a man 😂😂😂

  13. manju karkal

    November 7, 2019 at 5:36 pm

    Wrong audience?!

  14. Marwa Mohammed

    November 7, 2019 at 5:42 pm

    ♥️♥️

  15. Monish Kumar

    November 7, 2019 at 5:56 pm

    Truly Awesome!, I really enjoyed it!, See this New Album ‘Monish Jasbird – Death Blow’, channel link http://www.youtube.com/channel/UCv_x5rlxirO-WKjLIyk6okQ?sub_confirmation=1 , doo check 🙂

  16. ronkirk50

    November 7, 2019 at 6:14 pm

    One half of all fertilizers applied to crops, lawns and golf courses is taken up by plants and the other half ends up in our ground and surface waters. Over fertilizing increases profits for agribusiness, but is bad for all the rest of us. Acidic waste water generated by industry is most often neutralized using sodium hydroxide which increases salinity in the waste water.

  17. susan

    November 7, 2019 at 7:20 pm

    Is there salt in the fertilizer and sand that is put on the road?

  18. The Muckler

    November 7, 2019 at 7:53 pm

    Salt is the least of our worries…..and she misses the biggest salt contributers : US farmers and their fertilizers. She’s lobbying for funds for the firms she represents….not the environment

  19. Open Heart

    November 7, 2019 at 9:01 pm

    None of this makes a 100% pure product. This amount of salt alone is not a problem but polution is. I add salt to fresh water this helps fish survival rates. And drought increases salt naturally in rivers.

  20. Hristo Blagoev

    November 8, 2019 at 12:55 am

    I am sorry, but she’s wrong! The salt is not the problem.

    • Elan

      November 8, 2019 at 3:12 pm

      So then what is the problem?

    • Hristo Blagoev

      November 8, 2019 at 3:17 pm

      @Elan the problem is when people throw garbage and plastics in the rivers.

  21. TITAN0402

    November 8, 2019 at 1:22 am

    This is dumb just reintroduce fresh water mussels they clarify the river water! And keep it healthy….what a stupid woman obvs hasn’t got her heart in the right place and intent is probs to make money then piss off leaving the rivers with problems created by her and her research…Mother Nature already has the solution dear, you’re just blind and ignorant.

  22. Chris Consultant

    November 8, 2019 at 8:38 am

    Great forward approach for sustainability! Long overdue!

  23. KingofdarknessNinja Mars

    November 8, 2019 at 10:50 am

    thank you from Russia

  24. YouAndImpact

    November 8, 2019 at 5:20 pm

    Great sustainable project that mankind needs desperately now!

  25. EonWhite

    November 8, 2019 at 6:08 pm

    Alright. Am I the only one, who sees the red lamps in the background as morph ball Samus and the hexagons as Metroid Prime doors?
    Nintendo, please! I need a new Metroid game!

  26. Der Nudelbaer

    November 8, 2019 at 6:37 pm

    Met her yesterday and spoke with her about 30min; such a great person! 👍🏼

  27. Jacob Opstad

    November 9, 2019 at 12:00 am

    I would really like to know more about these membranes are made

  28. Gladys Farmer Kitchen 8GladysWorld8

    November 10, 2019 at 5:57 am

    Thanks for your research and protecting the environment.

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