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Fresh Water from Air

posted by mrpg on Sunday June 10 2018, @10:40PM   Printer-friendly
from the O,N,Ar dept.

MrPlow writes:

Submitted via IRC for Fnord666

In desert trials, next-generation water harvester delivers fresh water from air

Scientists who last year built a prototype harvester to extract water from the air using only the power of the sun have scaled up the device to see how much water they can capture in arid conditions in Arizona. Using a kilogram of MOF[*], they were able to capture about 7 ounces of water from low-humidity air each 24-hour day/night cycle. A new and cheaper MOF could double that.

[...] "There is nothing like this," said Omar Yaghi, who invented the technology underlying the harvester. "It operates at ambient temperature with ambient sunlight, and with no additional energy input you can collect water in the desert. This laboratory-to-desert journey allowed us to really turn water harvesting from an interesting phenomenon into a science."

[*] Metal-organic frameworks (MOFs) are:

compounds consisting of metal ions or clusters coordinated to organic ligands to form one-, two-, or three-dimensional structures. They are a subclass of coordination polymers, with the special feature that they are often porous. The organic ligands included are sometimes referred to as "struts", one example being 1,4-benzenedicarboxylic acid (BDC).

Also at Berkeley News.

Practical water production from desert air (open, DOI: 10.1126/sciadv.aat3198) (DX)

Original Submission

 
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  • (Score: 3, Touché) by rigrig on Monday June 11 2018, @08:21AM (3 children)

    by rigrig (5129) <soylentnews@tubul.net> on Monday June 11 2018, @08:21AM (#691315) Homepage

    Using a kilogram of MOF[*], they were able to capture about 7 ounces of water

    Glad to see a compromise has been reached about the use of imperial vs SI units.
    (Although not a very fair one, as apparently they use some non-imperial ounce in the US?)

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  • (Score: 0) by Anonymous Coward on Monday June 11 2018, @09:32AM

    by Anonymous Coward on Monday June 11 2018, @09:32AM (#691326)

    "About" makes it also sound very scientific. Could've been 6 ounce, could've been 8. I dunno exactly.

  • (Score: 0) by Anonymous Coward on Monday June 11 2018, @02:19PM

    by Anonymous Coward on Monday June 11 2018, @02:19PM (#691391)

    My guess (without reading TFA) is 200 g of water. This is 7.055 oz.

  • (Score: 0) by Anonymous Coward on Monday June 11 2018, @03:54PM

    by Anonymous Coward on Monday June 11 2018, @03:54PM (#691443)

    Obviously, they mean Arizonan Imperial Ounces.