The University of Queensland and Foster's Brewery have collaborated to build a microbial fuel cell at the Brisbane brewery. This fuel cell takes brewery waste water and some sugar-consuming bacteria as input and outputs electricity and clean water. I wonder if this could be used at universities. Last I remember consuming brewery waste (I think it was PBR), one of the byproducts was what appeared to be straight water. I wonder if I could've pulled an Uncle Fester and powered my own light bulb. I also wonder what this will do to the price of vegemite.
FTA: "It's not going to make an enormous amount of power — its primarily a waste water treatment that has the added benefit of creating electricity," Keller said.