Saturday, March 16, 2013

Defense contractor finds method for cheap, clean water

Defense contractor finds method for cheap, clean water

So the last commodity that was in world wide shortage may not be a problem after all.  Lockheed Martin's use of Graphene technology has apparently made unlimited fresh water available to all the peoples of the world within range of salt water. Now the only thing we need to address is the willful enslavement of the world's poor by artificial fuel exploitation policy by the anti-science "green" movement.
(Reuters) - A defense contractor better known for building jet fighters and lethal missiles says it has found a way to slash the amount of energy needed to remove salt from seawater, potentially making it vastly cheaper to produce clean water at a time when scarcity has become a global security issue.

The process, officials and engineers at Lockheed Martin Corp say, would enable filter manufacturers to produce thin carbon membranes with regular holes about a nanometer in size that are large enough to allow water to pass through but small enough to block the molecules of salt in seawater. A nanometer is a billionth of a meter.

Because the sheets of pure carbon known as graphene are so thin - just one atom in thickness - it takes much less energy to push the seawater through the filter with the force required to separate the salt from the water, they said.

The development could spare underdeveloped countries from having to build exotic, expensive pumping stations needed in plants that use a desalination process called reverse osmosis.

"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."
Kudos to Lockheed Martin. Graphene promises to revolutionize technology in other ways as well, and it is now that we are now seeing some of that promise fulfilled.