ETE RIBEIRAO DOS INDIOS - Secondary Wastewater Treatment in Ribeirão dos Índios, São Paulo

ETE RIBEIRAO DOS INDIOS is a municipal wastewater treatment plant located in Ribeirão dos Índios, a city in the state of São Paulo, Brazil. The plant serves a population of approximately 1,836 people, classifying it as a small-scale facility within the region's sanitation infrastructure. The plant provides secondary treatment, which is the standard biological treatment stage that removes organic matter and suspended solids. As a small agglomeration, it operates under Brazil's national environmental regulations, which mandate adequate treatment for all urban wastewater discharges. The plant's discharge volume is recorded at 223.26 (unit unspecified), reflecting its modest scale. The treated effluent is discharged into local water bodies that ultimately drain into the Paraná River basin, one of South America's major river systems. This basin supports diverse aquatic ecosystems and provides water for agriculture, industry, and communities downstream. Proper treatment at this plant helps protect water quality in the region's streams and rivers.

The plant discharges into local streams that are part of the Paraná River basin, which flows into the Río de la Plata estuary. The basin supports a variety of aquatic life and is important for regional water supply. The surrounding area is predominantly agricultural, so maintaining effluent quality is crucial to prevent nutrient pollution and protect downstream ecosystems.