News tagged with desalination
Airlift for drought-stricken Pacific island
New Zealand and Australia will Friday begin an airlift to help supply fresh water to the tiny drought-stricken Pacific nation of Tuvalu, which is under a state of emergency due to the crisis.
Oct 07, 2011 |
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Second Pacific island declares drought emergency
A second South Pacific community has declared a state of emergency in a drought crisis that has seen water rationing imposed in parts of the region, officials in Wellington said Tuesday.
Oct 04, 2011 |
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Research makes desalination easier to swallow
"We live in one of the driest places on earth, and so the opportunity to create new sources of water for the Australian community is incredibly important," said Professor Saravanamuth Vigneswaran, Director ...
Sep 22, 2011 |
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Britain unveils desalination plant for London reservoirs
(PhysOrg.com) -- Britain has brought online a new desalination plant near London capable of providing the city with 150 million gallons (568 million litres) of water per day, should the need arise. At a cost ...
Apr 25, 2011 |
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Research offers new desalination process using carbon nanotubes
A faster, better and cheaper desalination process enhanced by carbon nanotubes has been developed by NJIT Professor Somenath Mitra. The process creates a unique new architecture for the membrane distillation ...
Nanotechnology / Nanomaterials
Mar 14, 2011 |
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Singapore to triple desalination capacity by 2013
Singapore will more than triple its desalinated water capacity in two years' time when the country's second and largest desalination plant starts operations, the government said Monday.
Mar 07, 2011 |
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Researchers discover a way to simultaneously desalinate water, produce hydrogen and treat wastewater
(PhysOrg.com) -- Fresh water and reusable energy. Humans are on a constant hunt for a sustainable supply of both. Water purification requires a lot of energy, while utility companies need large amounts of ...
Technology / Energy & Green Tech
Dec 03, 2010 |
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Solar-powered disaster relief
As water and fuel remained scarce in the weeks following the earthquake in Haiti earlier this year, one resource that relief teams could have used to help prevent dehydration literally surrounds the Caribbean ...
Oct 15, 2010 |
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Scientists observe single ions moving through tiny carbon-nanotube channel
(PhysOrg.com) -- For the first time, a team of MIT chemical engineers has observed single ions marching through a tiny carbon-nanotube channel. Such channels could be used as extremely sensitive detectors ...
Sep 09, 2010 |
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Using the rays of the sun to convert sea- to drinking water
Many of the world's remote areas with water shortages also have three things in abundance: Sun, wind and sea. How renewable energies can be harnessed more effectively in the future to transform salty seawater ...
Jul 01, 2010 |
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Hold the salt: Engineers develop revolutionary new desalination membrane
(PhysOrg.com) -- The new reverse-osmosis membrane resists the clogging that typically occurs when seawater and brackish water are purified.
Apr 06, 2010 |
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A system that's worth its salt: New approach to water desalination could lead to small, portable units
(PhysOrg.com) -- Potable water is often in high demand and short supply following a natural disaster like the Haiti earthquake or Hurricane Katrina. In both of those instances, the disaster zones were near ...
Nanotechnology / Nanomaterials
Mar 21, 2010 |
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Nanotechnology could help Arab region
"Nanotechnology could aid the future of development of the Arab region," says Mohamed H.A. Hassan, executive director of TWAS, the academy of sciences for the developing world, and president of the African Academy of Sciences. ...
Nanotechnology / Nanomaterials
Feb 21, 2010 |
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New technology being developed for use in Jordan desalination plant
Researchers at Ben-Gurion University of the Negev are developing technology to scale up a novel method for achieving very high recoveries in desalination by reverse osmosis to be used in a Jordanian desalinization plant.
Aug 19, 2009 |
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Wastewater produces electricity and desalinates water
A process that cleans wastewater and generates electricity can also remove 90 percent of salt from brackish water or seawater, according to an international team of researchers from China and the U.S.
Aug 06, 2009 |
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Desalination
Desalination, desalinization, or desalinisation refers to any of several processes that remove some amount of salt and other minerals from water. More generally, desalination may also refer to the removal of salts and minerals, as in soil desalination.
Water is desalinated in order to convert salt water to fresh water so it is suitable for human consumption or irrigation. Sometimes the process produces table salt as a by-product. Desalination is used on many seagoing ships and submarines. Most of the modern interest in desalination is focused on developing cost-effective ways of providing fresh water for human use in regions where the availability of fresh water is, or is becoming, limited.
Large-scale desalination typically uses extremely large amounts of energy as well as specialized, expensive infrastructure, making it very costly compared to the use of fresh water from rivers or groundwater.
However, along with recycled water this is one of the few non-rainfall dependent water sources particularly relevant to countries like Australia which traditionally have relied on rainfall in dams to provide their drinking water supplies.
The world's largest desalination plant is the Jebel Ali Desalination Plant (Phase 2) in the United Arab Emirates. It is a dual-purpose facility that uses multi-stage flash distillation and is capable of producing 300 million cubic metres of water per year. By comparison the largest desalination plant in the United States is located in Tampa Bay, Florida, and operated by Tampa Bay Water, which began desalinating 34.7 million cubic meters of water per year in December 2007. The Tampa Bay plant runs at around 12% the output of the Jebel Ali Desalination Plants. The largest desalination plant in South Asia is the Minjur Desalination Plant near Chennai in India which produces 100,000 cubic meters of water per day, or 36.5 million cubic meters of water per year. According to International Desalination Association 2009, there are 14,451 desalination plants in operation worldwide, producing 59.9 million cubic meters per day (15.8 billion gallons a day), a year on year increase of 12.3%.
For more information about Desalination, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
