BRISTOL, England (UPI) -- British researchers say they are looking at
urine as a possible energy source for fuel cells that could power
autonomous robots.
Scientists at the University of Bristol say the waste product could
serve as the fuel for microbial fuel cells, which use bacterial
cultures that digest waste to create power, ScienceDaily.com reported
Wednesday.
A team at the university's Bristol Robotic Lab has spent more than 3
years developing EcoBot-III, a robot that can power itself by
converting waste such as rotten fruit and grass clippings into power.
As part of their research to find the best waste materials that create
the most energy, they will look at urine as a "food" for the microbial
power units, the team leader says.
"Urine is chemically very active, rich in nitrogen and has compounds
such as urea, chloride, potassium and bilirubin, which make it very
good for the microbial fuel cells," Dr. Ioannis Ieropoulos says.
Copyright 2010 by United Press International
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