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Sunlight Helps Turn Salty Water Fresh

MTorrice writes "With energy-efficient desalination techniques, water-starved communities could produce fresh water from salty sources such as seawater and industrial wastewater. But common methods like reverse osmosis require pumping the water, which uses a substantial amount of energy. So some researchers have turned to forward osmosis, because in theory it should use less energy. Now a team has demonstrated a forward osmosis system that desalinates salty water with the help of sunlight. The method uses a pair of hydrogels to absorb and squeeze out freshwater."

3 of 58 comments (clear)

  1. Wait, I've heard this one before! by Somebody+Is+Using+My · · Score: 5, Funny

    Desalinating salty water using sunlight?

    Oh right.

    IT'S CALLED RAIN!
    (patent pending)

    1. Re:Wait, I've heard this one before! by bob_super · · Score: 5, Funny

      Your patent is useless, your technology is just a stream served by my Cloud.

  2. system that desalinates salty water by bob_super · · Score: 1, Funny

    Designed by the ministry of duplicate redundant adjectives.