Shimla, Nov 23: Shimla Jal Prabandhan Nigam Limited (SJPNL) has approved the use of ozone technology to purify water drawn from the Sutlej for the city’s upcoming bulk supply project, marking the first deployment of the system in Himachal Pradesh.
Officials said the move is aimed at providing clean and contamination-free drinking water to Shimla and nearby areas, while reducing the long-term carcinogenic risks associated with heavy chlorination. Under the ozone treatment method, gas is generated at the site and then infused into the water. Once in contact, ozone neutralises bacteria and viruses, while oxidising organic pollutants, odours and minerals like iron and manganese.
A spokesperson for SJPNL said the technology has shown encouraging outcomes across the country. “It is considered an advanced system, and the results have been positive wherever it has been used,” the spokesperson noted. The official added that Tata had conducted a study recommending ozone treatment for Shimla’s supply line. “Following the suggestion, the matter was placed before the Board of Directors for consideration,” the spokesperson said.
The agency said the upgraded system is part of its plan to improve water quality and ensure reliable treatment, particularly during periods of increased contamination in the Sutlej. Officials added that formalities for procurement and installation will follow the board’s approval.
