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Universal Slum Sanitation with 100% Safe Reuse of Nutrients

Karsten Gjefle of Sustainable Sanitation Design in Norway will design and test a low cost system to rapidly turn human excreta into pathogen-free compost for use as fertilizer for farmers. Gjefle and his team hope to create a viable financial market that will remove untreated sewage from urban areas and also provide farmers with recycled, safe and natural soil improvements.

More information about Create the Next Generation of Sanitation Technologies (Round 6)

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View the Grand Challenges partnership network

The Bill & Melinda Gates Foundation is part of the Grand Challenges partnership network. Visit www.grandchallenges.org to view the map of awarded grants across this network and grant opportunities from partners.