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Repurposed: Ground Circuit Board Waste Can Clean Up Toxic Metals

ckwu writes "Researchers in Hong Kong have found a beneficial new use for the electronic waste from discarded cell phones, computers, and other gadgets. Ground up into a powder, printed circuit boards from these products could sponge up another type of pollution — toxic heavy metals in water. The researchers processed the nonmetallic fraction of waste circuit boards into a powder and found that it adsorbed metals like copper, lead, and zinc more efficiently than commercially available industrial adsorbents."

3 of 33 comments (clear)

  1. That's the clever part, by Kaenneth · · Score: 4, Funny

    When Winter comes, the Gorillas will all freeze to death.

    1. Re:That's the clever part, by HairyNevus · · Score: 4, Informative
      For those scratching their heads:

      Skinner: ahh, but as it turns out the lizards where a god send since they've eaten all the pigeons.
      Lisa: Isn't that a little short sighted, what happens when where up to our ears with lizards?
      Skinner: Ah, well we shall simply release wave after wave of Chinese needles snakes.
      Lisa: then what about the snakes?
      Skinner: We simply import gorillas who will eat all the snakes.
      Lisa: Well what happens when we're up to our ears in gorilla's!
      Skinner: Ah that's the beauty of the thing, come winter the gorillas will freeze to death.

      --
      You were critically hit for no damage. The bruise will look nice, and maybe the scars will make good party talk.
  2. good tech doing good work by kermidge · · Score: 4, Interesting

    This is good tech stuff, for real-world use and valid "news for nerds, stuff that matters" - oops, we don't do that here anymore. It's one of the ways tech is supposed to work.

    Somebody had a thought, "I wonder..." or "What if..." and tested it.
    It worked; in fact, it worked very well. The need is not restricted to China, either.

    What's not to like? Where's the applause?