Doulatganj Wastewater Treatment Plant, Lucknow, Uttar Pradesh, India

Doulatganj wastewater treatment plant is located in Lucknow, Uttar Pradesh, India, serving a population of around 374,000. As a major facility in the state capital, it plays a key role in managing the city's wastewater and protecting public health. The plant operates under India's regulatory framework, which includes the Water (Prevention and Control of Pollution) Act, 1974, and the National Green Tribunal guidelines. For agglomerations of this scale, secondary treatment is typically required, with tertiary treatment increasingly adopted in sensitive areas. Treated effluent from the plant is discharged into local water bodies that eventually drain into the Ganges River basin, a critical water resource for northern India. The plant helps reduce pollution loads in the Gomti River, a tributary of the Ganges, supporting downstream ecosystems and water quality.

The plant's treated effluent flows into the Gomti River, a major tributary of the Ganges, which ultimately drains into the Bay of Bengal. The Ganges basin supports dense populations and diverse aquatic life, including the Ganges river dolphin. Effective treatment is crucial to prevent eutrophication and protect downstream water quality.