Nature and EnvironmentIndiaSewage plants are key to saving water05:12This browser does not support the video element.Nature and EnvironmentIndia09/01/2022September 1, 2022A lot of sewage water in India goes untreated. A decentralized, innovative wastewater treatment system could help to save water and energy. It works with a combination of anaerobic bacteria and special wall structures within the treatment plant.Copy linkAdvertisement