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New nano carbon filter removes 99% of heavy metals from contaminated water. One gram of the material is enough to filter 83,000 liters of water to World Health Organization standards.
New nano carbon filter removes 99% of heavy metals from contaminated water. One gram of the material is enough to filter 83,000 liters of water to World Health Organization standards.
reddit: the front page of the internet 2017-07-27
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