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Drinking Water From Air Humidity

ScienceDaily 2009

- Drinking Water From Air Humidity

-  Source : ScienceDaily (June 8, 2009)

  • Not a plant to be seen, the desert ground is too dry. But the air contains water, and research scientists have found a way of obtaining drinking water from air humidity. The system is based completely on renewable energy and is therefore autonomous.
  • Research scientists at the Fraunhofer Institute for Interfacial Engineering and Biotechnology IGB in Stuttgart working in conjunction with their colleagues from the company Logos Innovationen have found a way of converting this air humidity autonomously and decentrally into drinkable water.
  • The principle of the process is as follows : hygroscopic brine - saline solution which absorbs moisture - runs down a tower-shaped unit and absorbs water from the air. It is then sucked into a tank a few meters off the ground in which a vacuum prevails. Energy from solar collectors heats up the brine, which is diluted by the water it has absorbed.
  • "The concept is suitable for various sizes of installation. Single-person units and plants supplying water to entire hotels are conceivable," says Egner. Prototypes have been built for both system components - air moisture absorption and vacuum evaporation - and the research scientists have already tested their interplay on a laboratory scale. In a further step the researchers intend to develop a demonstration facility.

- Pour en savoir plus sur le site ScienceDaily

Page publiée le 24 juin 2009, mise à jour le 27 novembre 2009