ETE AGUDOS DO SUL - Secondary Wastewater Treatment Plant in Agudos do Sul, Paraná

ETE AGUDOS DO SUL is a wastewater treatment plant located in Agudos do Sul, a municipality in the state of Paraná, Brazil. The plant serves a small population of 913 residents, reflecting its role in a rural or small-town setting within the Curitiba metropolitan region. The plant provides secondary treatment, which is the standard biological treatment stage that removes organic matter and suspended solids. Secondary treatment aligns with Brazilian regulatory requirements for smaller communities under CONAMA resolutions. The plant discharges 172.80 m³/day of treated effluent. The treated effluent likely drains into local watercourses within the Iguaçu River basin, which flows into the Iguaçu River and eventually to the Paraná River and the Río de la Plata estuary. This downstream chain supports diverse aquatic ecosystems and is important for regional water quality and biodiversity.

The plant discharges into local streams that are part of the Iguaçu River basin, a major tributary of the Paraná River. The Paraná River flows into the Río de la Plata estuary, which supports a rich aquatic ecosystem including migratory fish species. The region's subtropical climate and agricultural land use make proper wastewater treatment essential for protecting downstream water quality and aquatic habitats.