Rural health has always been in a prime focus . And one important element that is to be taken care in regard to the health concerns is water. Healthy and safe drinking water. Most diseases are spread due to unhygienic water supply.Therefore to bring a solution to it a nanotechnology-based water purifier developed by Indian Institute of Technology, Madras that provides arsenic-free water at an affordable cost will soon be installed in all arsenic-affected regions of the country.
The purifier is already providing arsenic-free water to more than four lakh people in West Bengal at a cost of less than 5 paise per litre.
The Union ministry of drinking water and sanitation has recommended the replication of the nanotechnology-based purifier in states having arsenic-affected habitation based on a report by the joint secretary (water) following his visit to an arsenic removal plant in Nadia district of West Bengal.
The ministry, which has communicated the same to IIT-M, has requested officials of state governments to visit the plant and replicate the same with funds from National Rural Drinking Water Programme.
Professor T Pradeep from the department of Chemistry, whose team developed the system, said the technology is based on active nano-scale iron oxyhydroxide material that selectively removes arsenic when water is passed through it. "It functions without electricity or piped water supply. All it requires is gravity," he said.
The professor said the technology can provide water meeting international norms (10 parts per billion) of water quality at an affordable price and also doesn’t leave much sludge making it sustainable and implementable. "Our technology produces water with arsenic concentration of less than 2 parts per billion," Pradeep said.
The professor’s group has been working on drinking water purification for more than a decade. "We have 50 patents by developing several materials. In the course of developing these materials, we found that some of them are very good for arsenic," the professor said.