shock electrodialysis
Saturday, November 28, 2015
Wednesday, September 16, 2015
Pervaporation for desalinization
Pervaporation
https://en.wikipedia.org/wiki/Pervaporation
Pervaporation (or pervaporative separation) is a processing method for the separation of mixtures of liquids by partial vaporization through a non-porous or porous membrane.
Helmy El-Zanfaly, a professor of water contamination at Egypt’s National Research Centre
Developed by a team of researchers at Alexandria University in Egypt, the procedure uses a desalination technique called pervaporation to remove the salt from sea water and make it drinkable. Specially made synthetic membranes are used to filter out large salt particles and impurities so they can be evaporated away, and then the rest is heated up, vapourised, and condensed back into clean water.
New technology converts sea water into drinking water in minutes
http://www.sciencealert.com/this-new-technology-converts-sea-water-into-drinking-water-in-minutes
Desalination of simulated seawater by purge-air pervaporation using an innovative fabricated membrane
http://www.iwaponline.com/wst/07205/wst072050785.htm
Helmy El-Zanfaly, a professor of water contamination at Egypt’s National Research Centre
Developed by a team of researchers at Alexandria University in Egypt, the procedure uses a desalination technique called pervaporation to remove the salt from sea water and make it drinkable. Specially made synthetic membranes are used to filter out large salt particles and impurities so they can be evaporated away, and then the rest is heated up, vapourised, and condensed back into clean water.
New technology converts sea water into drinking water in minutes
http://www.sciencealert.com/this-new-technology-converts-sea-water-into-drinking-water-in-minutes
Desalination of simulated seawater by purge-air pervaporation using an innovative fabricated membrane
http://www.iwaponline.com/wst/07205/wst072050785.htm
Wednesday, August 19, 2015
Quadruple lithium-ion battery lifespan
Forgetful scientists accidentally quadruple lithium-ion battery lifespan
http://www.geek.com/chips/forgetful-scientists-accidentally-quadruple-lithium-ion-battery-lifespan-1631273/
http://www.geek.com/chips/forgetful-scientists-accidentally-quadruple-lithium-ion-battery-lifespan-1631273/
"Achieving the new outer coating required a set time of soaking. The accident occurred when Wang and Li forgot to remove one batch of the nanoparticles from the soaking process. That batch ended up soaking for several hours longer than intended with the result being the sulfuric acid and titanium oxysulfate mix leaked into the 50nm nanoparticles and dissolved some of the aluminum inside. What this left was a nanoparticle with a 4nm outer shell of titanium hydroxide and an inner 30nm "yolk" of aluminum.
Rather than discarding this forgotten batch, they decided to test it by building batteries using these particles. It turns out they have potentially solved the problem of using aluminum for the anodes in the battery. The extra long soak meant the anodes did not expand and contract, in fact they created a battery that over 500 charge/discharge cycles retained up to four-times the capacity of the equivalent graphite anode batteries. These batteries last considerably longer in terms of usable lifespan and, according to MIT, can hold up to three-times the energy."
Tuesday, August 18, 2015
Kepler Transverse Horizontal Axis Water Turbine (THAWT)
Saturday, August 8, 2015
Thursday, July 23, 2015
Thursday, May 28, 2015
Sunday, May 24, 2015
Saturday, May 23, 2015
Thursday, May 7, 2015
Sunday, May 3, 2015
Tuesday, April 14, 2015
Friday, February 13, 2015
Monday, January 26, 2015
Electric powered life.
Electric powered life.
Electricity to foods been a recent thing, really becoming practical with low cost high power red and blue LEDs.
But these bacteria can bypass photosynthesis and just take electrons. For space travel is this fantastic news.
Have We Found Alien Life? | Popular Science
http://www.popsci.com/have-we-found-alien-lifeSaturday, January 17, 2015
Aluminum-air battery from Israeli company Phinergy.
VIDEO: A car that runs on water and air — the future of transportation in an aluminum-air battery from Israeli company Phinergy.
http://www.phinergy.com/
Thursday, January 8, 2015
Wednesday, January 7, 2015
Tuesday, January 6, 2015
Monday, January 5, 2015
Friday, January 2, 2015
One-Third of Scotland Could Soon Be Powered by the World's Biggest Underwater "Windmill" Tidal Plant
http://inhabitat.com/one-third-of-scotland-could-soon-be-powered-by-the-worlds-biggest-underwater-windmill-tidal-plant/
One-Third of Scotland Could Soon Be Powered by the World's Biggest Underwater "Windmill" Tidal Plant
In between the Scottish mainland and the Orkney Islands lies the Pentland Firth, a turbulent sound with tides that can reach up to a startling 18 miles per hour. That’s a lot of untapped power. MeyGen is taking advantage of all that renewable energy with the installation of the world’s largest tidal power plant, and if everything goes as expected, the underwater windmills could eventually power a full third of Scotland.
Daily tides in the Pentland Firth are about 11 miles per hour, which is ideal for a tidal power plant, but that same tidal activity makes installing massive turbines difficult. Nonetheless, the new power station is expected to produce 398 megawatts of electricity every year. That would make it the biggest tidal power plant, passing South Korea’s Sihwa Lake, which generates 254 megawatts each year.
Related: Scotland Approves Europe’s Largest Tidal Energy Project
The plan for building the plant involves dropping 61 turbines onto the floor of the sea, where each one will be weighed in place by concrete legs. Each turbine has rotary blades like a windmill, so to sea life and any wayward divers, the plant will look like a giant undersea wind farm. Though it isn’t the first time someone has used this technology to generate power – there is, among others, one installation in New York City – it is the first time anyone has attempted it at this scale. If it all works, it could set the standard for arrays like this one.
One-Third of Scotland Could Soon Be Powered by the World's Biggest Underwater "Windmill" Tidal Plant
In between the Scottish mainland and the Orkney Islands lies the Pentland Firth, a turbulent sound with tides that can reach up to a startling 18 miles per hour. That’s a lot of untapped power. MeyGen is taking advantage of all that renewable energy with the installation of the world’s largest tidal power plant, and if everything goes as expected, the underwater windmills could eventually power a full third of Scotland.
Daily tides in the Pentland Firth are about 11 miles per hour, which is ideal for a tidal power plant, but that same tidal activity makes installing massive turbines difficult. Nonetheless, the new power station is expected to produce 398 megawatts of electricity every year. That would make it the biggest tidal power plant, passing South Korea’s Sihwa Lake, which generates 254 megawatts each year.
Related: Scotland Approves Europe’s Largest Tidal Energy Project
The plan for building the plant involves dropping 61 turbines onto the floor of the sea, where each one will be weighed in place by concrete legs. Each turbine has rotary blades like a windmill, so to sea life and any wayward divers, the plant will look like a giant undersea wind farm. Though it isn’t the first time someone has used this technology to generate power – there is, among others, one installation in New York City – it is the first time anyone has attempted it at this scale. If it all works, it could set the standard for arrays like this one.
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