Sanitation

A self-contained sewage recycling system being designed by Duke and Missouri engineers.
Duke University

Two years ago, the Bill and Melinda Gates Foundation launched a research competition called “Reinvent the Toilet,” challenging researchers to create a sewage disposal system that requires no electricity and could be used in developing countries. Marc Deshusses, a professor of civil and environmental engineering at Duke’s Pratt School of Engineering, pitched an idea to the Foundation and won $100,000 to take it further.