Another wacky interest of mine.
But living on the second driest continent, already periously short of water, and with another 10 million people on the way in 20 years, (65% more) we need to have a cheap breakthough here soon.
see also
salt and
water where will is come from in 2050 hypo. threads
also
Solar desalination - Science Links
Quote:
Centriforce`s Desalination Technology Validated by SGS
MIAMI
--(Business Wire)--
Centriforce Technology Corp. (Pink Sheets:CNFO) announced today that it
completed a performance test coordinated by Industrial Services Division of SGS
North America, Inc., a member of the SGS Group. SGS is recognized as the global
benchmark for testing and certification of new technologies.
The performance test showed that Centriforce`s desalination technology was able
to receive normal seawater (35 parts per thousand salt) and transform it to an
almost pure, distilled state (specific gravity of 0.998, conductivity of 456
microS/cm) which may be used for human consumption and other markets that
require potable water.
|
Centriforce`s Desalination Technology Validated by SGS | Reuters
Quote:
Technology to purify water takes the spotlight and a Jersey twist
MONDAY, 19 OCTOBER 2009 13:18
NJIT professor Kamalesh Sirkar honored for his research
Using a colander to separate pasta from the water in which it was cooked is a commonplace kitchen experience. But what about the cooking water that usually disappears down the drain? Suppose you had a colander with holes that could not only separate pasta and water, but just as easily remove the salt and starch added to the water in the cooking process - making the water so pure that it would taste great.. . ."
The basic principles of membrane separation have been known for a long time. Intestines in animals and humans are semi-permeable membranes, and early experiments to study the process of separation were performed by chemists using samples of animal intestine. However, it wasn't until the early 1960s that the use of membranes for separation applications turned the corner toward practicality when two UCLA researchers fabricated a synthetic membrane from a material similar to plastic.
The researchers demonstrated that reverse osmosis achieved with their membrane could reject salt and produce fresh water at a rate sufficient for real-world use.
"Today such plants are used in the US," Sirkar said. "But not as much as they could be." He predicted that by 2040, most US water treatment plants will use this technology because of the obvious advantages. "It's a compact technology with relatively low energy consumption that can operate at room temperature for many different applications. It's also a green technology," he said.
In Sirkar's NJIT lab, recent groundbreaking work in the field has included a membrane distillation technique that can recover a larger fraction of water from brine than reverse osmosis; a selective protein ultrafiltration method that could rival chromatography as a process for protein purification; and gas permeation membranes that facilitate the separation of carbon dioxide from air by allowing the carbon dioxide to pass through the membrane up to eighteen-thousand times faster than oxygen and nitrogen.
— ANDY LAGOMARSINO, NEWJERSEYNEWSROOM.COM
.
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http://www.newjerseynewsroom.com/sci...a-jersey-twist
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reverse
Desalination, de salination
