The Hyderabad Metropolitan Water Supply and Sewerage Board (HMWS&SB) is considering switching over to ozone water treatment from chlorination to improve water quality. Ozone is a more effective disinfectant and oxidant than chlorine and does not produce as many byproducts that have been found to be potentially damaging to human health. Ozone can also improve the aesthetics of the water by removing color, taste and odor compounds.
The Water Board supplies 340 million gallons per day (MGD) of water. The Water Board has proposed to use ozone technology to convert raw water into safe drinking water. Ozone is used extensively to treat drinking water in the US, Europe and Japan.