.jpg)
Algae can clean sewage without electricity or chemicals; we put it to the test in South Africa
Across Africa, many rural communities face a growing sanitation crisis. Wastewater treatment systems, where they exist, are often old, overloaded, or broken. In some towns, untreated sewage flows directly into rivers, contaminating water sources and harming both ecosystems and public health.
Across Africa, many rural communities face a growing sanitation crisis. Wastewater treatment systems, where they exist, are often old, overloaded, or broken. In some towns, untreated sewage flows directly into rivers, contaminating water sources and harming both ecosystems and public health.
