The Bill & Melinda Gates Foundation is challenging researchers to reinvent the toilet—making it safe and affordable for people in the developing world.
A design by engineers at the University of Toronto 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.
Full story at Futurity.
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Photo credit: University of Toronto