New Nano Desalinization Method 216
lbmouse writes "The Technology Review is reporting that researchers at the Lawrence Livermore National Laboratory have announced a way to use carbon nano-tube technology to reduce the cost of desalination of ocean water by 75 percent over current methods of reverse osmosis. From the article: 'The technology could potentially provide a solution to water shortages both in the United States, where populations are expected to soar in areas with few freshwater sources, and worldwide, where a lack of clean water is a major cause of disease.' The technology may also lead to new ways of eliminating carbon dioxide emitted from power plants."
stop watering your lawn (Score:2, Insightful)
Materials science must be the top-level science (Score:4, Insightful)
But all the uses found for a new material and all the new applications discovered - in many respects it certaily seems to be the most fruitful science (at least in the engineering and day-to-day sense).
Re:stop watering your lawn (Score:2, Insightful)
Re:stop watering your lawn (Score:3, Insightful)
Hate to break it to you bud, but it's all the same water in the end. There was a paper company that opened up east of here, and on the day that they commenced operations private wells for 50 miles around dried up, and who got hurt? People who had seen no reason to care because their water was totally different from the water that the paper company was slurping up a million gallons at a time.
Re:could be important for a hydrogen economy (Score:4, Insightful)
Percentage salt remaining? (Score:2, Insightful)
This would be a major concern in areas where desertification is already rampant.
I have no idea what the accepatble level is, but it needs to be damn low before you can irrigate with desalinised sea water.
Re:Desalinization vs Condensation? (Score:3, Insightful)
It may be more efficient (and cheaper) by simply being, well, simpler.
Very important topic (Score:3, Insightful)
Where does the lawn water go? (Score:5, Insightful)
I am hard pressed that anyone living where there is normal rainfall for growing grass (i.e. Georgia) and has a water table high enough to tap with a private well isn't simply recycling the water by pumping it from below and discharging it on the surface. In fact, ground-source heat pumps are the next big thing in saving energy resources -- some of the systems are closed loop with a coil to pipe in the ground, other systems are open loop, lifting water from a well and discharging it on the surface. The various state DNR's that issue permits for such open loop systems want you to discharge on the surface -- they certainly don't want you pumping water that you have handled directly back into the aquifer without being filtered through the ground.
I agree that lawn watering is a serious use of resources in the desert Southwest U.S. You can be Fremen in your view of lawns on Arrakis, but to argue the same point on Caladan is stretching matters a bit far.
Getting skeptical of all this nano (Score:3, Insightful)
I really am looking forward to batteries lasting 100x longer, nanopaper and this latest discovery. I just have absolutely no read on how far we are out on practical implementations of this technology.
Re:Huge boon to hydrogen economy? (Score:3, Insightful)
Why two words? desalination / desalinization (Score:2, Insightful)
It reminds me of the contention between regardless and irregardless. Yeah, I hate irregardless too.
Drink your pee (Score:3, Insightful)