Bangalore, India


Simar Kohli, Tharun Kumar, Dr. E. Muralidharan


The EcoStp team created an eco-friendly approach to sewage treatment, inspired by the four chambers of a cow’s stomach. This low-maintenance technology produces energy instead of consuming it, compared to conventional STPs which use energy-hogging motors, exhaust fans, pumps and blowers. This design doesn’t use chemicals to treat the sewage, but instead uses microorganisms, plants, and gravel to treat wastewater. With 93% of sewage untreated in India, the team is developing an economical and ecological solution that treats up to 1 million liters of sewage a day without needing to be connected to a power grid.



EcoStp addresses Sustainable Development Goals: Good Health and Well-Being (#3), Clean Water and Sanitation (#6), Decent Work and Economic Growth (#8), Industry, Innovation and Infrastructure (#9), Sustainable Cities and Communities (#11), Responsible Consumption and Production (#12), Life on Land (#15).