Researchers design cheap mercury-free LED foil to purify water

November 22, 2016 by  
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Utilizing light to purify water isn’t a new idea, but Ohio State University researchers recently developed a portable, cheap way to cleanse water with light anywhere in the world. Their LED foil prototype has the potential to revolutionize water purification with deep-ultraviolet (UV) light. Deep-UV lights are already used to purify medical equipment and water, but such light usually comes from cumbersome mercury lamps. By putting LED lights on metal foil, the Ohio State researchers may have avoided the problems usually associated with purifying water with deep-UV light. They designed their LEDs to glow with that sterilizing deep-UV light, and when their flexible prototype is folded around objects and energized, it could kill dangerous microorganisms. Related: Groundbreaking affordable, paper-thin filter removes viruses from water Roberto Myers, materials science and engineering associate professor at Ohio State, said in a statement, “Right now, if you want to make deep ultraviolet light, you’ve got to use mercury lamps. Mercury is toxic and the lamps are bulky and electrically inefficient. LEDs, on the other hand, are really efficient, so if we could make UV LEDs that are safe and portable and cheap, we could make safe drinking water wherever we need it.” The LED foil could offer a more environmentally friendly light to purify water. The researchers are confident they will be able to scale up their prototype; their goal is to transform nanophotonics, a study centered around how objects just nanometers big interact with light, into a profitable industry. “People always said that nanophotonics will never be commercially important, because you can’t scale them up,” said Myers. “Well, now we can. We can make a sheet of them if we want.” The journal Applied Physics Letters published the researcher’s paper on the LED foil. The researchers will continue working to make the LEDs shine brighter. Via New Atlas Images via Brelon J. May courtesy of The Ohio State University and Wikimedia Commons

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Researchers design cheap mercury-free LED foil to purify water

Repair Revolution: One Man’s Fixation With E-Waste

February 2, 2016 by  
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When Kyle Wiens was a computer science undergraduate student at California Polytechnic State University, he needed to fix his Apple laptop, so he looked online for a repair manual. To his chagrin, he couldn’t find one. “I discovered that Apple was…

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Repair Revolution: One Man’s Fixation With E-Waste

Hundreds of Seeping Methane Plumes Discovered Off U.S. East Coast

August 25, 2014 by  
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Natural methane leakage from the sea floor is far more widespread off the U.S. East Coast than previously thought, according to a study published in Nature Geoscience this week. Researchers from Mississippi State University, the U.S. Geological Survey , and other institutions discovered least 570 natural methane seeps in a 94,000 square kilometer area between September 2011 and August 2013. And while it is believed that the seeps have been there for at least 1,000 years, the report’s authors are concerned that rising sea temperatures could cause them to emit the greenhouse gas at increasingly rapid rates. Read the rest of Hundreds of Seeping Methane Plumes Discovered Off U.S. East Coast Permalink | Add to del.icio.us | digg Post tags: Adam Skarke , carbon emissions , Carolyn Ruppel , Climate Change , east coast , global warming , greenhouse gas , methane , methane seep , Mississippi State University , nature geoscience , ocean , ocean acidity , the US Geological Survey

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Hundreds of Seeping Methane Plumes Discovered Off U.S. East Coast

Utah State University Develops an E-Bus That Charges at Each Stop

October 29, 2013 by  
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Utah State University has tested a first-of-its-kind electric bus that is capable of charging itself through wireless induction technology . Dubbed ‘the Aggie Bus’, the e-bus uses a  high-power, high-efficiency wireless power transfer system capable of transferring enough energy to quickly charge an EV over an air gap of 10 inches. Read the rest of Utah State University Develops an E-Bus That Charges at Each Stop Permalink | Add to del.icio.us | digg Post tags: aggie bus , e-bus , electric bus , usu research foundation , USU’s Wireless Power Transfer , Utah Science Technology and Research initiative’s Advanced Transportation Institute , Utah State University , wireless charging , wireless induction technology        

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Utah State University Develops an E-Bus That Charges at Each Stop

Is green marketing a luxury for good economic times?

July 25, 2012 by  
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According to three Penn State University researchers, green marketing over the past 30 years has risen and fallen in lockstep with economic growth.

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Is green marketing a luxury for good economic times?

Is green marketing a luxury for good economic times?

July 25, 2012 by  
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According to three Penn State University researchers, green marketing over the past 30 years has risen and fallen in lockstep with economic growth.

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Is green marketing a luxury for good economic times?

SOLAR DECATHLON: Appalachian State University’s Solar Homestead is a Net Zero Homage to the Region’s Settlers

September 13, 2011 by  
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Read the rest of SOLAR DECATHLON: Appalachian State University’s Solar Homestead is a Net Zero Homage to the Region’s Settlers Permalink | Add to del.icio.us | digg Post tags: “solar energy” , Appalachian State university , asheville , bifacial photovoltaic panels , eco design , green design , modular home , north carolina , off the grid , photovoltaic roof , renewable resources , Solar Decathlon , Solar Homestead , sustainable design , The Great Porch , Trombe Wall , washington d.c.

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SOLAR DECATHLON: Appalachian State University’s Solar Homestead is a Net Zero Homage to the Region’s Settlers

Nanofarming Offers a Kinder, Gentler Way to Get Biofuel from Algae

December 6, 2009 by  
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One barrier to cost-competitive biofuel from algae is about to fall, and we may have nanofarming to thank for that.  The new technology uses tiny nanoparticles to absorb free fatty acids from living microalgae. It is being developed by the U.S.

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Nanofarming Offers a Kinder, Gentler Way to Get Biofuel from Algae

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