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A few of the beards contained standard stuff while others revealed fecal matter.

When these bacteria eat the waste, electrons are released as a byproduct–and Logan’s fuel cell collects those electrons on carbon bristles, where they can move through a circuit and power everything from light bulbs to ceiling fans.

Logan’s microbial fuel cells can produce both electrical power and hydrogen, meaning the cells could one day be used to juice up hydrogen-powered vehicles. “In the early reactors, we used very expensive graphite rods and expensive polymers and precious metals like platinum.

Soon enough, wastewater-powered batteries may even keep the lights on in your house or, at the very least, in the industrial plants that clean the wastewater.

Environmental engineer Bruce Logan is developing microbial fuel cells that rely on wastewater bacteria’s desire to munch on organic waste.

Ed's room also has a closet (occasionally filled with sandwiches and pizza as seen in "Who's Minding the Ed?

Last modified 30-Dec-2019 02:47