ETE CEDRAL Wastewater Treatment Plant, Cedral, São Paulo, Brazil

ETE CEDRAL is a wastewater treatment plant located in Cedral, within the state of São Paulo, Brazil. It serves a population of approximately 6,537 residents, classifying it as a small to medium agglomeration under Brazilian regulatory frameworks. The plant is situated in the southeastern region of Brazil, an area characterized by a tropical climate and significant agricultural activity. The plant employs secondary treatment, which is the standard biological process required by Brazilian regulations (CONAMA resolutions) for municipalities of this size. Secondary treatment typically involves biological oxidation and sedimentation to remove organic matter and suspended solids. The reported discharge volume of 920.47 units indicates active operation. The treated effluent is discharged into local water bodies that eventually drain into the Paraná River basin, one of South America's major river systems. The downstream environment supports diverse aquatic life and is used for irrigation and water supply. The plant's operation helps protect local streams and rivers from untreated sewage, contributing to the overall health of the Paraná basin ecosystem.

The plant discharges into the Paraná River basin, which flows through southeastern Brazil into the Río de la Plata estuary. This watershed supports diverse aquatic ecosystems, including fish species important for local fisheries. The region's tropical climate and agricultural land use make nutrient management critical to prevent eutrophication in downstream water bodies.