Technique for arsenic-free water developed

SciDev.Net: A novel approach to arsenic removal could lead to a quick and inexpensive purification of drinking water in developing countries. Previous research demonstrated that arsenic can be removed from water using activated carbon or iron minerals, such as magnetite nanocrystals. However, such particles are too small to be effective in flowing water and they quickly degrade when exposed to the atmosphere, rendering them useless. Now scientists have combined the nanocrystals with ......

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