"It's 500 times thinner than the best filter on the market today and a thousand times stronger," said John Stetson, the engineer who has been working on the idea. "The energy that's required and the pressure that's required to filter salt is approximately 100 times less."
Access to clean drinking water is increasingly seen as a major global security issue. Competition for water is likely to lead to instability and potential state failure in countries important to the United States, according to a U.S. intelligence community report last year.
"Between now and 2040, fresh water availability will not keep up with demand absent more effective management of water resources," the report said. "Water problems will hinder the ability of key countries to produce food and generate electricity."
About 780 million people around the world do not have access to clean drinking water, the United Nations reported last year.
"One of the areas that we're very concerned about in terms of global security is the access to clean and affordable drinking water," said Tom Notaro, Lockheed business manager for advanced materials. "As more and more countries become more developed ... access to that water for their daily lives is becoming more and more critical."
