ETE Ribeirao do Veado Wastewater Treatment Plant - Cornélio Procópio, Paraná, Brazil

ETE Ribeirao do Veado is a wastewater treatment plant located in Cornélio Procópio, a city in the northern region of Paraná state, Brazil. The plant serves a population of approximately 16,555 people, placing it in the medium-sized agglomeration category for Brazilian sanitation systems. It is situated in the Conjunto Habitacional União neighborhood, within the Região Geográfica Imediata de Cornélio Procópio-Bandeirantes. Brazilian wastewater treatment plants are regulated under federal standards set by the Ministry of Cities and state environmental agencies. For plants serving populations of this scale, secondary treatment is typically required to meet discharge standards. The plant operates within the framework of Brazil's sanitation legislation, which aims to expand treatment coverage and improve effluent quality across the country. The treated effluent from ETE Ribeirao do Veado is discharged into local water bodies that drain into the Paranapanema River basin, a major tributary of the Paraná River. This river system supports diverse aquatic life and provides water for agriculture and human consumption downstream. Proper treatment at this plant helps protect water quality in the region's rivers and reservoirs.

The plant discharges into the Paranapanema River basin, which flows into the Paraná River and ultimately reaches the Río de la Plata estuary. The watershed supports important aquatic ecosystems, including fish species that rely on clean water for spawning. Effective wastewater treatment is critical to prevent nutrient loading and maintain ecological balance in this sensitive river system.