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University of Toronto wins third place at the Gates Foundation's Reinvent the Toilet Challenge
Date:8/15/2012

A University of Toronto (U of T) team led by Engineering Professor Yu-Ling Cheng, Director of the Centre for Global Engineering, has garnered third place and $40,000 (USD) for their design of a toilet for the developing world.

The design was a response to the Bill & Melinda Gates Foundation's Reinvent the Toilet Challenge, which seeks to develop a waterless, hygienic toilet that is safe and affordable for people in the developing world that doesn't have to be connected to a sewer.

U of T was one of eight universities from around the world to receive the initial phase one funding of almost $400,000 each. That investment allowed the teams to test their conceptual design. Those designs are being showcased this week at the Gates Foundation's Seattle headquarters, where the Reinvent the Toilet Fair is being held.

The U of T solution is novel in its simplicity. It uses a sand filter and UV-ray disinfecting chamber to process liquid waste and a smolder chamber, similar to a charcoal barbeque, to incinerate solid waste that has been flattened and dried in a roller/belt assembly. The result is a toilet that is sustainable, easy to use and that processes waste while protecting the community from contamination. A video fully explaining the design can be found here: http://vimeo.com/uoftengineering/toilet

"A lot of science has gone into our work, but we have been careful in our design to ensure that any of the equipment and processes we use can be easily repaired and managed in a remote community by people with limited resources and training," explained Professor Cheng. "The result is a toilet design that will not only address the pressing challenges associated with poor sanitation, but is sustainable and usable by some of the poorest people in the world."

Traditional toilets, which rely on running water, an extensive sewer network and an expensive processing
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Contact: Liam Mitchell
media@ecf.utoronto.ca
416-978-4498
University of Toronto Faculty of Applied Science & Engineering
Source:Eurekalert

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