Electricity from wastewater gets a salty boost

Publication: msnbc.com   Date: March 2, 2012   View Article

Microbes that digest wastewater in a fuel cell to produce electricity are getting a boost from a technology that captures energy from the difference between salt and fresh water, scientists report in a new study.

“It is like putting another battery into a flashlight, you get more voltage and power out,” Bruce Logan, an environmental engineer at Pennsylvania State University, told me Thursday.

The technology could lead to wastewater treatment plants that generate electricity, instead of consuming it.

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