Arsenic filters developed by Birla Institute of Technology researchers 200 to 240 litres of safe drinking water estimated to cost 3 paise a litre A team of researchers from Birla Institute of Technology (BIT), Mesra (Ranchi), has developed a filtration system for eliminating arsenic from groundwater for using it for drinking purpose. “It’s an affordable filtration system developed by using naturally available materials to combat the growing problem of arsenic contamination of groundwater,” informed Sanjay Kumar Swain, the leader of the team. “The project was funded by the Board of Research in Nuclear Sciences of the Bhaba Atomic Research Centre (BARC), Mumbai,” he further informed, adding their team comprised of Usha Jha and Amulya Ranjan Panda from BIT and Sanjukta A. Kumar, a BARC scientist, besides him.