M_s Kumbakonam Municipality Sewage Treatment Plant, Tajnavur Dist, Tamil Nadu

M_s Kumbakonam Municipality Sewage Treatment Plant is located in Melaammachatram, a village in the Thanjavur district of Tamil Nadu, India. The plant serves a population of approximately 113,580, classifying it as a medium-to-large agglomeration under Indian urban wastewater management standards. It is situated inland, more than 50 km from the coast, and treats municipal wastewater from the Kumbakonam area. Under India's National Mission for Clean Ganga and the Water (Prevention and Control of Pollution) Act, 1974, sewage treatment plants of this scale are typically required to achieve secondary treatment standards, often incorporating biological processes such as activated sludge or sequencing batch reactors. The designed capacity of 1. The treated effluent from the plant is likely discharged into local watercourses that drain into the Cauvery River basin, a major river system in southern India. The Cauvery River flows eastward through Tamil Nadu and empties into the Bay of Bengal. This region supports intensive agriculture and is ecologically significant for its delta ecosystems and migratory bird habitats. Proper treatment of wastewater is critical to prevent nutrient loading and contamination of downstream water bodies.

The plant's treated effluent likely enters local streams that feed into the Cauvery River, one of India's largest peninsular rivers. The Cauvery basin supports extensive rice cultivation and is home to diverse aquatic life, including fish species and migratory birds. Downstream, the river forms a fertile delta before discharging into the Bay of Bengal. Effective wastewater treatment is essential to protect these ecosystems from eutrophication and pathogen contamination.