In field tests, device harvests water from desert air

What does make the world turn?
User avatar
Gawdzilla Sama
Real Skeptic
Posts: 21636
Joined: Sun Jun 01, 2008 2:11 am
Custom Title: Deadly but evil.

In field tests, device harvests water from desert air

Postby Gawdzilla Sama » Thu Mar 29, 2018 12:49 pm

In field tests, device harvests water from desert air
System could provide drinking water even in extremely arid locations

Date: March 22, 2018

Source: Massachusetts Institute of Technology

Summary: You really can extract clean drinking water right from the air, even in the driest of deserts, researchers have found. They've demonstrated a real-world version of a water-harvesting system based on metal organic frameworks, or MOFs, that they first described last year.

It seems like getting something for nothing, but you really can get drinkable water right out of the driest of desert air.

Even in the most arid places on Earth, there is some moisture in the air, and a practical way to extract that moisture could be a key to survival in such bone-dry locations. Now, researchers at MIT have proved that such an extraction system can work.

The new device, based on a concept the team first proposed last year, has now been field-tested in the very dry air of Tempe, Arizona, confirming the potential of the new method, though much work remains to scale up the process, the researchers say.

The new work is reported today in the journal Nature Communications and includes some significant improvements over the initial concept that was described last year in a paper in Science, says Evelyn Wang, the Gail E. Kendall Professor in the Department of Mechanical Engineering, who was the senior author of both papers. MIT postdoc Sameer Rao and former graduate student Hyunho Kim SM '14, PhD '18 were the lead authors of the latest paper, along with four others at MIT and the University of California at Berkeley.

Last year's paper drew a great deal of attention, Wang says. "It got a lot of hype, and some criticism," she says. Now, "all of the questions that were raised from last time were explicitly demonstrated in this paper. We've validated those points."

The system, based on relatively new high-surface-area materials called metal-organic frameworks (MOFs), can extract potable water from even the driest of desert air, the researchers say, with relative humidities as low as 10 percent. Current methods for extracting water from air require much higher levels -- 100 percent humidity for fog-harvesting methods, and above 50 percent for dew-harvesting refrigeration-based systems, which also require large amounts of energy for cooling. So the new system could potentially fill an unmet need for water even in the world's driest regions.


Continues...
Chachacha wrote:"Oh, thweet mythtery of wife, at waft I've found you!"

WWII Resources. Primary sources.
The Myths of Pearl Harbor. Demythologizing the attack.
Hyperwar. Hypertext history of the Second World War.
The greatest place to work in the entire United States.

User avatar
Austin Harper
Has More Than 5K Posts
Posts: 5083
Joined: Wed Sep 21, 2011 2:22 pm
Custom Title: Rock Chalk Astrohawk
Location: Detroit
Contact:

Re: In field tests, device harvests water from desert air

Postby Austin Harper » Thu Mar 29, 2018 12:51 pm

Tell me about the waters of your homeworld, Usul.
Dum ratio nos ducet, valebimus et multa bene geremus.

User avatar
Gawdzilla Sama
Real Skeptic
Posts: 21636
Joined: Sun Jun 01, 2008 2:11 am
Custom Title: Deadly but evil.

Re: In field tests, device harvests water from desert air

Postby Gawdzilla Sama » Thu Mar 29, 2018 1:05 pm

Austin Harper wrote:Tell me about the waters of your homeworld, Usul.

"I was planning on going into Tashi Station to pick up some power converters!"
Chachacha wrote:"Oh, thweet mythtery of wife, at waft I've found you!"

WWII Resources. Primary sources.
The Myths of Pearl Harbor. Demythologizing the attack.
Hyperwar. Hypertext history of the Second World War.
The greatest place to work in the entire United States.

User avatar
Poodle
Has More Than 9K Posts
Posts: 9419
Joined: Sun Jul 31, 2011 9:12 pm
Custom Title: Regular sleeper
Location: NE corner of my living room

Re: In field tests, device harvests water from desert air

Postby Poodle » Thu Mar 29, 2018 2:12 pm

It's good - but I'll wait until it can produce 2.5 litres a day in a dry climate before getting excited. That's the point at which Arrakis becomes habitable.

User avatar
Gord
Obnoxious Weed
Posts: 31426
Joined: Wed Apr 29, 2009 2:44 am
Custom Title: Silent Ork
Location: Transcona

Re: In field tests, device harvests water from desert air

Postby Gord » Thu Mar 29, 2018 2:18 pm

I'll believe it when Thunderf00t sees it. :P

https://www.youtube.com/watch?v=EGTRX6pZSns
"Knowledge grows through infinite timelessness" -- the random fictional Deepak Chopra quote site
"Imagine an ennobling of what could be" -- the New Age BS Generator site
"You are also taking my words out of context." -- Justin
"Nullius in verba" -- The Royal Society ["take nobody's word for it"]
#ANDAMOVIE

User avatar
Gawdzilla Sama
Real Skeptic
Posts: 21636
Joined: Sun Jun 01, 2008 2:11 am
Custom Title: Deadly but evil.

Re: In field tests, device harvests water from desert air

Postby Gawdzilla Sama » Thu Mar 29, 2018 2:23 pm

Yeah, MIT is notoriously unreliable. They can't even keep cars off their dome.
Chachacha wrote:"Oh, thweet mythtery of wife, at waft I've found you!"

WWII Resources. Primary sources.
The Myths of Pearl Harbor. Demythologizing the attack.
Hyperwar. Hypertext history of the Second World War.
The greatest place to work in the entire United States.

User avatar
ElectricMonk
Persistent Poster
Posts: 3952
Joined: Thu Mar 26, 2015 6:21 pm
Custom Title: The Baby-eating Bishop

Re: In field tests, device harvests water from desert air

Postby ElectricMonk » Thu Mar 29, 2018 4:48 pm

"I not only think that we will tamper with Mother Nature, I think Mother wants us to."
- Willard Gaylin


Return to “Science, Technology, and Mathematics”

Who is online

Users browsing this forum: No registered users and 1 guest