'Super sand' for better purification of drinking water
Wednesday, June 22, 2011 - 15:31
in Earth & Climate
Scientists have developed a way to transform ordinary sand -- a mainstay filter material used to purify drinking water throughout the world -- into a "super sand" with five times the filtering capacity of regular sand. The new material could be a low-cost boon for developing countries, where more than a billion people lack clean drinking water, according to a new article.