Cheap Drinking Water from the OceanContinued from page 1
Holt estimates that these membranes could be brought to market within the next five to ten years. "The challenge is to scale up so we can produce usable amounts of these membrane materials for desalination, or gas separation, the other high-impact application for these membranes," he says, adding that the fabrication process is "inherently scalable." Eventually, the membranes could be adapted for a variety of applications, ranging from pharmaceuticals to the food industry, where they could be used to separate sugars, for example, says co-author Olgica Bakajin, a physicist at LLNL. "Practically, the next step is figuring out how to take a general concept and modify it to a specific application," Bakajin says. "There are many studies that one can imagine to build upon this study," says Northwestern's Ruoff. "Our understanding of molecular processes will be helped by experiments of this type. There are interesting possibilities for nanofluidic applications, such as in nanoelectromechanical systems and in 'smart' switching [on and off] of the flow through such small channels." |
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Sun-Assisted Desalination
12/17/2009
Massachusetts Institute of Technology
Comments
06/12/2006
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http://www.llnl.gov/pao/contact/
Including perhaps:
Ann Willoughby, Manager, Community &
External Relations
willoughby1@llnl.gov
(925) 423-4234
Gov't labs allow for a cooperative R&D agreement that is quite useful for efforts such as yours. Good Luck!
06/16/2006
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I am very exciting to hear further development.
Ben
suhben
10/14/2008
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be a conductor of electricity, an
experiment to utilize the membrane
as an array of high voltage electrodes in electrostatic cooling of a metal plate across
which wind is blowing
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Methane is NATURAL GAS
(OK Methane is the major component of natural gas)
Anyhow send the methane to the nearest natural pipeline or load.
06/17/2006
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It's a non-solution.
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shomas
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I'm not an engineer per se, so your response has me stumped a little. If the Salt water is more dense, and the nano filter in place prevents salt from getting in, then the pure water - being less dense would simply fill up the tube - correct? Or is it just the opposite, where the pure water is smaller than the nano filter, and bleed back into the salt water if there is insufficient pressure to keep it moving in the right direction. If the latter - then a pump would be required to keep pure water flowing into the tube to be captured.
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http://www.lhup.edu/~dsimanek/museum/osmosis.htm
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Of course.. I haven't taken any physics related courses in over a decade so I'm not going to pretend I actually know anything. :) Your theory sounds reasonable as well.
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832-233-9122
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As for you, I have no hope. Here is a MAJOR LIFE LESSON: There are no guarantees.
You are correct as far as the nanotube toxicity. Recycling must be mandatory.
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http://hytechapps.com/aquygen
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GREATooo
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GREATooo
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Vehicle fuel systems
Medical (such as dialysis and antisepsis)
Water cleaning
Waste processing
Water salt is not the only thing you can take out of seawater. What about the millions of tonnes of precious metals in solution? Run a large enough operation to filter millions of gallons of seawater with filters designed to catch larger molecules such as gold, and other metals and your system would pay for itself... probably not for a few thousand years but you would have a lot of gold etc. Of course keepin the fauna and flora out of your intake pipes could be a problem.
07/14/2006
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Filtering RO water is fine and goes pretty fast but try and filter sludge, not so quick. I would guess several pre-filtration steps would be required to used this nanotube filter regardless of how the flow is applied to it.
Sponge
08/22/2006
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neilc
11/05/2007
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Where and how can I buy these nanotubes?
How much does it cost each?
Yemm.Mulder
01/12/2008
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