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#280235 - 04/07/16 08:45 PM New Water Filtration tech--
LCranston Offline
2
Enthusiast

Registered: 08/31/09
Posts: 201
Loc: Nebraska
While not yet ready for primetime, a very promising tech, from a proven company- not some kickstart program..


http://gizmodo.com/5990876/lockheeds-new-carbon-filter-takes-all-the-effort-out-of-desalinization

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#280236 - 04/07/16 11:28 PM Re: New Water Filtration tech-- [Re: LCranston]
EMPnotImplyNuclear Offline
Enthusiast

Registered: 09/10/08
Posts: 382
smile Hopefully someday Perforene
Originally Posted By: https://en.wikipedia.org/wiki/Perforene
Bruce Sterling commented for Wired, "if this graphene vaporware actually worked out in practice, we’d have to forgive Lockheed Martin for everything else they’ve ever done — plus maybe even give them Nobels and McMansion palaces in former deserts."

The Water Desalination Report writes that Lockheed Martin's claims that it had developed a membrane that will desalinate water “at a fraction of the cost of industry-standard RO systems” were "ridiculous and very premature.

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#280261 - 04/11/16 05:13 PM Re: New Water Filtration tech-- [Re: LCranston]
Ren Offline
Addict

Registered: 11/05/07
Posts: 522
Loc: Wales, UK
Article is 3 years old.

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#280266 - 04/11/16 09:04 PM Re: New Water Filtration tech-- [Re: LCranston]
Phaedrus Offline
Carpal Tunnel

Registered: 04/28/10
Posts: 3148
Loc: Big Sky Country
It's still news though. The technology still hasn't made it to market yet.
_________________________
“I'd rather have questions that cannot be answered than answers that can't be questioned.” —Richard Feynman

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#280288 - 04/12/16 02:44 PM Re: New Water Filtration tech-- [Re: LCranston]
Treeseeker Offline
Member

Registered: 03/29/12
Posts: 189
Loc: California
I was a RO research chemist for about 10 years. Developing a membrane is one thing, but finding a good support system to keep it intact is another whole project in itself.

Most common is the use of non-woven fabrics made out of synthetic materials. The difficulty in scaling up is finding a fabric that is consistently smooth without any loose strands that protrude up through the membrane (a loose strand causes a leak). And the larger the piece you need the more difficult it is to manufacture consistently.

Since the graphene membrane is supposedly only an atom thick this is going to be extremely difficult. It may be many more years before they find a solution.

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#280776 - 05/26/16 07:07 AM Re: New Water Filtration tech-- [Re: LCranston]
WesleyH Offline
Member

Registered: 05/26/16
Posts: 101
Loc: Unknown
A little research turned up a little more recent article about the issue.

From Nov of 2015, MIT news:

http://news.mit.edu/2015/desalination-gets-graphene-boost-jeffrey-grossman-1102


I don't think from reading the article that we will be seeing this technology any time soon.




Wesley Horton


Edited by WesleyH (05/26/16 07:09 AM)
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WesleyH

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