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June 15th, 2008

Water woes: Scarcity points to big opportunities in desalination

Abstract:
Another promising technology in the world of desalination systems is innovative membrane technology. "Nano-engineered membranes are probably one of the most promising technologies out there," says PARC's Lean. These ultra thin nano-membranes from startups like NanoH20 in Los Angeles and Aqua Via in Hayward, Calif. are still in their early days of testing and will take several years before they're ready to scale up to large deployments.

Lean says PARC researchers have also been working on membrane-less filtration systems that have a very low energy cost of roughly .11 watts per gallon per hour. This system, called the spiral concentrator, could eventually be used in pre-treatment for desalination systems, he adds.

Source:
wral.com

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