Water, water everywhere, not a drop to drink. This line from Samuel Taylor Coleridge's poem, The Rime of the Ancient Mariner, is becoming truer by the day. And it’s a crisis that many Indian technology ventures are today trying to provide solutions to – from using Python to help predict a drought, to using satellites to scout leakages in underground pipelines. 

Anik Panja and JV Raghava Sharma’s Vizag-based Hydrograviticity is giving rain-water harvesting a whole different meaning. It has made filters, made of gravel and sand, that can be retrofitted to existing pipes to help reuse rain water which would have otherwise gone literally down the drain. The filters have remote sensors which tell users the contents of the water after purification. The sensor detects the pH value, the turbidity and the flow of the water during filtration. A dashboard is given to each gated community for users to view the data, while a master dashboard with the company helps interpret the data further, Panja says. 

Login / register to read complete article.