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Submission + - Circuit Board Waste Mops 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.
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Circuit Board Waste Mops Up Toxic Metals

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I have a theory that it's impossible to prove anything, but I can't prove it.