The flush toilet was a transformative invention, but experts say its time may be past and are pioneering ways to recover energy and nutrients from human waste.
At first glance, it's hard to see what the labs of stem cell researcher Michael Kallos and petroleum engineer Ian Gates could have in common. Excrement, however, has brought them together. For the past year, the University of Calgary scientists have been collaborating on inventing a new kind of toilet. Using their common expertise in designing bioreactors, they are devising a toilet that can convert feces and urine into fertilizer, clean water, and a source of gas for heating or electricity.
|CREDIT: EAWAG - AQUATIC RESEARCH, SWITZERLAND|