We've all heard the expression "haste makes waste," but how about waste making energy? At the fourth annual Maker Faire Africa in Lagos, Nigeria, a quartet of teenage girls ages 14 through 15 have created a urine-powered generator. This eco-friendly energy source cranks out six hours of electricity for every liter of human bodily fluid by separating the excretion's hydrogen with an electrolytic cell. While this method of human waste disposal seems promising, the device has the potential to be a pee-powered biobomb and will need more than its limited safety measures before you're able to pick one up at your local hardware store. However, if this can help us save a few bucks on our energy bill, then we need to introduce these girls to these guys posthaste.
Urine-powered generator produces six hours of electricity per bathroom break originally appeared on Engadget on Thu, 08 Nov 2012 22:24:00 EDT. Please see our terms for use of feeds.
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Recycling wastewater to generate energy has turned up noses before, but researchers at Oregon State University have developed a microbial fuel cell that can create 10 to 50, or even 100 times more electricity per volume than similar technologies. After refining the tech for several years using new materials, techniques and selecting better microbes, the team can now extract two kilowatts per cubic meter of refuse. As bacteria oxidizes organic matter, electrons -- rather than the hydrogen or methane that other methods rely upon -- are produced and run from an anode to a cathode within the device to create an electric current. Once implementation costs are cut down, the technology could power waste treatment plants and enable them to sell excess electricity. The contraption isn't just for processing what comes out of the porcelain throne -- it can also utilize materials ranging from grass straw to beer brewing byproducts. For now, however, the cell will tackle a pilot study before it inches closer to your local brewery or water treatment facility.
Filed under: Science
Researchers create super-efficient microbial fuel cell, dream of selling excess electricity originally appeared on Engadget on Tue, 14 Aug 2012 04:14:00 EDT. Please see our terms for use of feeds.
PermalinkPhysOrg | Oregon State University | Email this | Comments 
Here's something you don't want happening when you're trying to wrap up a career, plan a jaunt to Moorea and generally goof off while waiting for the final checks to clear: large numbers of people demanding that you change something. That's probably what one Bob Mansfield is dealing with, just weeks before he'll turn in his Apple employee badge and do... well, whatever he wants. Just six days after the company yanked its products out of EPEAT's green registry, all eligible Apple products are back. Why? Well, many cities, entities and organizations (San Francisco, we're glaring at you) won't purchase products that aren't on the list, and according to a letter from Bob (embedded in full after the break), the removal "was a mistake."
He also notes that "Apple makes the most environmentally responsible products in our industry," and that no other company in this industry can say that its entire product line "exceeds the stringent ENERGY STAR 5.2 government standard." Curiously, he also states that Apple's relationship with EPEAT "has become stronger as a result of this experience," which sure makes one wonder what went down to begin with. Now, Bob -- retirement. No more emails. Focus.
Continue reading Bob Mansfield: 'all eligible Apple products are back on EPEAT'
Filed under: Cellphones, Laptops
Bob Mansfield: 'all eligible Apple products are back on EPEAT' originally appeared on Engadget on Fri, 13 Jul 2012 13:53:00 EDT. Please see our terms for use of feeds.
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Scientists from Singapore's Nanyang Technological University aren't keen on being wasteful -- that's why they've developed a toilet that uses 90% less water than other commodes and is capable of generating energy. Aptly named the No-Mix Vacuum Toilet, the porcelain pedestal's pot divides waste between two partitions -- one side for liquids, the other for solids -- and uses vacuum tech reminiscent of airline lavatories. Flushing solid and fluid wastes with 1 and 0.2 liters of H2O, respectively, the can will be able to route refuse to external processing facilities. Fertilizer ingredients such as nitrogen, potassium and phosphorous would then be harvested from liquids. Similarly, methane can be coaxed from solids for conversion to electricity or as a replacement for other natural gasses. Two of the university's restrooms are slated to have the toilets installed in the near future, and the team expects the thrones to roll out worldwide within three years.
[Thanks, Yuka]
Scientists develop flush-efficient toilet system that can turn waste into energy, sort before it recycles originally appeared on Engadget on Fri, 29 Jun 2012 21:43:00 EDT. Please see our terms for use of feeds.
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We've seen quite a few tech companies boast about their environmental efforts in recent years, and it looks like you can now also add Microsoft to the list of those attempting to be carbon neutral. As you might expect, while that includes some alternative energy efforts and energy-saving measures, it also makes use of a carbon offset program to make up the difference, which will see Microsoft put money into an internal fund for emissions it's not able to offset through other means. That means Microsoft will be able to declare itself carbon neutral fairly soon -- by the start of the 2013 fiscal year, to be specific, which actually begins this July. You can find additional details on the initiative in the company's blog post on the subject, and yet more in the white paper linked below.
Microsoft puts a price on carbon, says its footprint will be neutral by July originally appeared on Engadget on Wed, 09 May 2012 01:14:00 EDT. Please see our terms for use of feeds.
Permalink |Official Microsoft Blog, Microsoft white paper (PDF) | Email this | Comments