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Salinity
Long awaited satellite to monitor water cycle reaches orbit
By Darren Quick
22:43 November 5, 2009 PST
The 658kg (1,450 lb) Soil Moisture and Ocean Salinity (SMOS) satellite launched by the European Space Agency (ESA) this week is the first ever satellite designed both to map sea surface salinity and to monitor soil moisture on a global scale. The unique radiometer it carries will enable passive surveying of the water cycle between oceans, the atmosphere and land thereby playing a key role in the monitoring of global climate change. Read More
Process to clean wastewater also produces electricity and desalinates water
By Darren Quick
00:05 August 17, 2009 PDT
Desalination plants generally employ one of two methods to produce clean water – reverse osmosis or electrodialysis. Unfortunately, both processes require large amounts of energy, but an international team of researchers has proven a process that cleans wastewater can also remove 90 percent of salt from brackish water or seawater while generating electricity. Read More
Protecting world food supplies with salt-tolerant crops
20:59 July 16, 2009 PDT
Salt might be great with popcorn and peanuts, but it’s not so good with soil. The U.N. estimates that the world loses at least three hectares of arable land every minute because of soil salinity. Most crops simply can’t cope with too much salt. Which is why a breakthrough by a team at the University of Adelaide in Australia could have a profound effect on the food supplies of our future: they’ve found a way to genetically modify plants to become more salt tolerant. Read More
The M3 mobile water desalination system cuts the cost of producing clean water
By Darren Quick
04:57 July 15, 2009 PDT
Desalination is a popular source of potable water in Middle Eastern countries, where large energy reserves and the relative scarcity of water suitable for drinking led to desalination in the region accounting for close to 75% of total world capacity in 2007. If that figure hasn’t already dropped it almost certainly will as access to clean water becomes an issue for many places around the globe. And the shortage isn’t just limited to developing countries, with places like California and parts of Australia facing their worst droughts in recorded history. A new mini-mobile-modular (M3) “smart” water desalination and filtration system could help determine the feasibility of desalination in areas that may be considering it for the first time. Read More
Salinity power as renewable energy
By Matt Kennedy
23:40 March 11, 2009 PDT
Green energy comes in many guises these days, from wind-power to wave-power. One of the more compelling of the new kids on the eco-energy block is salinity power, which uses the concurrence of salt-water and freshwater in estuaries and marries it with the natural, effortless process of osmosis. Read More
Freedom Glen
- November 25, 2009 @ 02:47 UTC
