Quality Assurance of Biosand Filters: Production and Distribution

The Centre for Affordable Water and Sanitation Technology (CAWST) is a non-profit organization promoting appropriate technologies in water and sanitation for the developing world. An example is the biosand filter, currently manufactured by hundreds of organizations in 55 countries, and used by 650,000+ families. Ensuring filter quality will accelerate its dissemination worldwide. In this project, […]

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