SEATTLE—The Bill and Melinda Gates Foundation this week announced the winners of the Reinvent the Toilet Challenge—an effort to develop “next-generation" toilets that will deliver safe and sustainable sanitation to the 2.5 billion people worldwide who don’t have it. The awards recognize researchers from leading universities who are developing innovative ways to manage human waste, which will help improve the health and lives of people around the world.
California Institute of Technology in the United States received the $100,000 first prize for designing a solar-powered toilet that generates hydrogen and electricity. Loughborough University in the United Kingdom won the $60,000 second place prize for a toilet that produces biological charcoal, minerals, and clean water. University of Toronto in Canada won the third place prize of $40,000 for a toilet that sanitizes feces and urine and recovers resources and clean water. Special recognition and $40,000 went to Eawag (Swiss Federal Institute of Aquatic Science and Technology) and EOOS for their outstanding design of a toilet user interface.
One year ago, the foundation issued a challenge to universities to design toilets that can capture and process human waste without piped water, sewer or electrical connections, and transform human waste into useful resources, such as energy and water, at an affordable price.
The first, second, and third place winning prototypes were recognized for most closely matching the criteria presented in the Reinvent the Toilet Challenge.