Overview
ETE Piraju is a municipal wastewater treatment plant serving approximately 23,379 people in Piraju, São Paulo, Brazil. It operates under Brazil's national environmental regulations for water quality.
ETE Piraju is a wastewater treatment plant located in Piraju, a city in the state of São Paulo, Brazil. The plant serves a population of about 23,379 residents, placing it in the medium-sized agglomeration category. As part of Brazil's wastewater infrastructure, it plays a key role in managing municipal sewage for the local community. Plants of this scale in Brazil are typically required to meet secondary treatment standards under federal regulations such as CONAMA Resolution 430/2011. These standards aim to reduce organic load and suspended solids before discharge. It is expected to comply with state-level environmental permits issued by CETESB, the environmental agency of São Paulo. The treated effluent from ETE Piraju is discharged into a local water body, likely a tributary of the Paranapanema River, which flows into the Paraná River basin. This river system is ecologically significant, supporting diverse aquatic life and providing water for agriculture and human consumption downstream. Proper treatment helps protect water quality in this important watershed.
Environmental context
The plant discharges into a tributary of the Paranapanema River, part of the larger Paraná River basin. This watershed drains into the Río de la Plata estuary, supporting a rich diversity of fish and aquatic species. The region's subtropical climate and agricultural land use make effective wastewater treatment critical to prevent nutrient pollution and maintain ecological balance in downstream water bodies.
Frequently asked questions
ETE Piraju is located in the city of Piraju, in the state of São Paulo, Brazil. The plant serves the local municipal area.
The plant serves approximately 23,379 people, classifying it as a medium-sized agglomeration under Brazilian wastewater standards.
The treated effluent is discharged into a local water body, likely a tributary of the Paranapanema River, which flows into the Paraná River basin.
The plant operates under Brazil's CONAMA Resolution 430/2011, which sets effluent quality standards, and is permitted by CETESB, the environmental agency of São Paulo.
Plants of this size in Brazil typically employ secondary treatment processes, such as activated sludge or stabilization ponds, to meet organic load and suspended solids limits.
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