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Drinking Water Sucked from Dusty Desert Air Using Hybrid Hydrogel

posted by martyb on Sunday December 09 2018, @12:04PM   Printer-friendly
from the technology dept.

karthikaqpt writes:

A simple device that can capture its own weight in water from fresh air and then release that water when warmed by sunlight could provide a secure new source of drinking water in remote arid regions, new research from KAUST (King Abdullah University of Science & Technology) suggests.

At the heart of the device is the cheap, stable, nontoxic salt, calcium chloride. This deliquescent salt has such a high affinity for water that it will absorb so much vapor from the surrounding air that eventually a pool of liquid forms.

https://www.rtoz.org/2018/12/07/drinking-water-sucked-from-the-dusty-desert-air-using-hybrid-hydrogel/

The full research paper is available on-line.

Original Submission

 
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  • (Score: 1, Interesting) by Anonymous Coward on Sunday December 09 2018, @07:48PM (1 child)

    by Anonymous Coward on Sunday December 09 2018, @07:48PM (#772066)

    I saw a documentary where they rasied such a tower in a village with a simple bamboo skeleton and polyester threads which would give 100 liters of water per day.

    Seems much simpler.

    http://www.warkawater.org/ [warkawater.org]

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  • (Score: 2) by JoeMerchant on Monday December 10 2018, @12:47AM

    by JoeMerchant (3937) on Monday December 10 2018, @12:47AM (#772168)

    Warka tower (makes me think of the Wonkatania [youtu.be], is very cool for making potable water in a place where bamboo is readily available...

    Unfortunately, there's not much bamboo in the desert, and the polyester thread method probably doesn't work in lower relative humidity conditions.

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