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Rocket science used to make wastewater treatment sustainable

By Damir Beciri
One Comment27 July 2010

Professor Brian Cantwell, graduate student Yaniv Scherson, Professor Craig Criddle, and graduate students George Wells and Koshlan Mayer-Blackwell in the Criddle lab with the nitrous oxide decomposition cell.Within the sludge of wastewater treatment plants is an invisible world teeming with microbes. Here, diverse species of bacteria convert solid and liquid wastes into gases, some of which contribute to global warming. Two Stanford University engineers are developing a new sewage treatment process that would actually increase the production of nitrous oxide (“laughing gas”)… »

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Parametric Frequency Increased Generators harvest vibrations

By Damir Beciri
2 Comments27 March 2010

miniature-generatorThere are many power sources today as wind power, hydro-power, tidal, geothermal, solar power as well as the power used in wristwatches, where oscillations that occur while we move our hand power the watch. Researchers from the University of Michigan are developing a similar, more sensitive, technology. Their small generators could produce enough electricity from… »