Changing the World, One Flush at a Time
Nearly half the world—3.6 billion people—lack reliable access to safe sanitation. Addressing this challenge requires solutions tuned to local economics, cultural norms, and environmental conditions. Backed by the Bill & Melinda Gates Foundation, the Center for Water, Sanitation, Hygiene, and Infectious Disease (WaSH-AID) designs and pilots treatment systems for blackwater, greywater, and stormwater. The center also develops wastewater-based health monitoring tools bringing affordable, effective sanitation and disease surveillance to regions that need it most.