Cost-Effective Water Filter: Delhi-NCR twin sisters turn okra, fenugreek and rice husk into a Rs 100 electricity-free water filter; IIT Delhi tests show up to 93% removal of PFAS
[ad_1] Naina and Nayantara Singh developed the low-cost plant-based water filter. What if some of the ingredients sitting in a kitchen cupboard could help tackle pollutants that conventional water filters struggle with? For Delhi-NCR twins Naina and Nayantara Singh, that question became the starting point for a nearly year-long scientific experiment. The Class XII students…