Money Down the Toilet: Recovering Valuable Nutrients From Urine and Turning Waste Into Fertilizer - Orisa Coombs

This research transforms human urine into sustainable fertilizer using solar-powered systems that recover nutrients like nitrogen, phosphorus, and potassium. By turning toilets into decentralized fertilizer factories, the approach improves sanitation, reduces reliance on energy-intensive production, and provides affordable fertilizers to underserved farmers, supporting both environmental sustainability and economic development.