The Bill and Melinda Gates held an interesting event on 14 August, in which there were different types of toilets / Commodes. The idea was to create a system to dispose of human fecal material without using water or electricity and a septic system.
Students of the University of Colorado
took home $ 780,000 dollars for his idea: a system that uses solar
energy to convert human waste into a kind of biological biochar or
charcoal.
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