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ScienceDaily (Apr. 24, 2005) — Using a new electrically-assisted microbial fuel cell (MFC) that does not require oxygen, Penn State environmental engineers and a scientist at Ion Power Inc. have developed the first process that enables bacteria to coax four times as much hydrogen directly out of biomass than can be generated typically by fermentation alone
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These bacteria make hydrogen gas from fermentation of biomass including waste. The electricity assists, making them more efficient. We have the makings of solar powered septic tanks to make hydrogen. They can be powered by leaves, grass, human waste, and other biomass.