Sewage plants like this could soon be soon be self-sufficient in terms of energy usage (Image: dweekly via Flickr)
Schematic of a microbial electrolytic system
Microbes on MEC diode that break down organic materials to biowaste
While much of the focus on renewable electricity production focuses on green alternatives, a team of engineers at Oregon State University is looking at ways to improve electricity production from a “brown” source – namely sewage. The engineers found that using new coatings on the anodes of microbial electrochemical cells they were able to increase the electricity production from sewage about 20 times.
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