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A federally funded research effort to revolutionize water treatment has yielded an off-grid technology that uses energy from sunlight alone to turn salt water into fresh drinking water. The desalination system uses a combination of membrane distillation technology and light-harvesting nanophotonics. More than 18,000 desalination plants operate in 150 countries, but this new desalination technology is unlike any other used today. [Source: Rice University]
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