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Researchers create super-efficient microbial fuel cell, dream of selling excess electricity
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.
Honey, at home: Philips urban beehive shrinks your ecological footprint, increases holes on belt
It's a first-world issue: running out of honey when we need just a little more to sweeten up that bowl of oatmeal or cup of coffee. What we need is a constant supply of the golden stuff, and Philips has thankfully come up with this urban beehive to provide precisely that. It's the latest addition to the company's germaphobe-unfriendly "microbial home" concept. The system is half flowerpot, half hive, with bees able to travel between flower pollination and your domestic honey factory their honeycomb house. Honey can be 'tapped' from the base, with a smoking system in place to "calm the bees" before opening the hive. Now, if Philips could fashion something to keep us in a constant supply of maple syrup, then maybe even bakery dreams have a future, after all. %Gallery-139021%
Urinal power plants to juice up Lollapalooza-dwelling robots
Do you have to relieve yourself? Is your robot low on batteries? Your previously problematic world could soon be harmonized in one magical step. The Bristol Robotics Lab has been feeding funny trash to its Microbial Fuel Cells for quite some time -- rotten fruit, decomposed-in-sludge fly juice, grass clippings -- things like that. The Lab has now found that the nitrogen-urea-chloride-potassium-bilirubin cocktail present in urine is a particularly useful waste fuel which will play nicely with stacked fuel cells, as long as the fuel is, um... flowing. They've already partnered with waterless urinal manufacturer Ecoprod to create a portable urinal power plant that "could be used [...] at music festivals and other outdoor events," and hey, if HP can power their data centers with excrement, who can take offense to this? [Image of Dr. Ioannis Ieropolous holding a microbial fuel cell courtesy of University of the West of England]
