Process Uses Plastic Bottles to Remove Arsenic from Drinking Water

Yale Environment 360: U.S. researchers say they have developed a simple, inexpensive process that uses common plastic bottles to remove arsenic from drinking water, a problem facing nearly 100 million people in developing nations. In the process, pieces of plastic soda or water bottles are coated with cysteine -- an amino acid found in dietary supplements and foods -- and dropped into arsenic-contaminated water. After the mixture is stirred, the coated plastic bits grab hold of the arsenic like a magnet, stripping significant......

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