Keshopur Nilothi III Wastewater Treatment Plant, West Delhi, India

Keshopur Nilothi III is a major wastewater treatment plant located in the Patel Nagar area of West Delhi, India. Serving an estimated population of over 1.2 million, it is one of the larger treatment facilities in the Delhi region, supporting the city's extensive urban wastewater management infrastructure. As a large-scale plant in India, it operates under the country's environmental regulations, including the Water (Prevention and Control of Pollution) Act, 1974, and the National Green Tribunal guidelines. For agglomerations of this size, secondary treatment is typically required, with advanced treatment expected for discharge into sensitive water bodies. The treated effluent from the plant likely discharges into the Yamuna River, which flows through Delhi and is a major tributary of the Ganges. The Yamuna is heavily impacted by urban and industrial pollution, making the plant's role critical for improving water quality and protecting downstream ecosystems and communities.

The plant's treated effluent likely enters the Yamuna River, which flows through Delhi and joins the Ganges in Uttar Pradesh before reaching the Bay of Bengal. The Yamuna is a vital water source but faces significant pollution challenges from urban runoff and untreated sewage. The plant's operations help reduce nutrient and pathogen loads, supporting aquatic life and downstream water quality in this densely populated basin.