Friday, February 02, 2007
Water purification prize won
The Grainger Challenge Prize for Sustainability is a technology innovation prize competition for a reliable, inexpensive, and maintainable system that can filter arsenic out of drinking water from wells. It is sponsored by the National Academy of Engineering and the Grainger Foundation. The $1,000,000 first prize, as well as substantial second and third prizes, were won today. Other challenges with broadly similar goals may be offered later.