For something like 900 million people in India, access to clean water isn’t the problem. It’s keeping that water clean once it reaches households. A team of civil and environmental engineering and business administration students have invented a system to fight bacterial growth. They compete for the InVenture Prize March 16.
With more than 10 million service points, India’s rural drinking water system provides a real monitoring headache for public health officials. To help address the challenge, a three-continent research consortium is evaluating a novel environmental crowdsourcing technique that relies on 53-cent test kits and the nation’s ubiquitous mobile phone service.