https://www.indiawaterportal.org/water-quality-and-pollution/pollution/can-kanpur-turn-sewage-into-clean-energy-and-help-restore-the-ganga https://media.assettype.com/indiawaterportal/2026-07-19/opkw6f56/kanpur-lead.jpg Kanpur's primary industry consists of 400 tanneries that treat hides using water and heavy chemicals like chromium. This multi-step process generates highly polluted water, which is typically discharged back into the Ganges River without being treated. Image: Daniel Bachhuber; CC BY-NC-ND 2.0; Flickr Commons indiawaterportal en 2026-07-19T04:51:52.528Z Can Kanpur turn sewage into clean energy and help restore the Ganga? Wastewater resource recovery, Kanpur tannery pollution, Renewable energy from sewage, Ganga river restoration, Direct membrane filtration, Anaerobic co-digestion, Biogas production India, Sewage to clean energy, Industrial wastewater treatment, Circular economy urban planning