ETE MIRA ESTRELA - Secondary Wastewater Treatment Plant in Mira Estrela, São Paulo

ETE MIRA ESTRELA is a wastewater treatment plant located in Mira Estrela, a municipality in the state of São Paulo, Brazil. The plant serves a population of approximately 1,649 people, classifying it as a small-scale facility within the region's sanitation infrastructure. It is situated near the coast, within 10 km of the Atlantic Ocean, which influences its discharge considerations. The plant provides secondary treatment, a standard level for municipal wastewater in Brazil under the National Environmental Council (CONAMA) regulations. Secondary treatment typically involves biological processes to reduce organic matter and suspended solids. For small agglomerations in Brazil, secondary treatment is generally required to meet effluent standards before discharge. The treated effluent from ETE MIRA ESTRELA likely reaches the Atlantic Ocean via local watercourses, given its proximity to the coast. The receiving water body is not explicitly named, but the plant's coastal location means its discharge can affect marine and estuarine ecosystems. Proper treatment is essential to protect water quality and aquatic life in the region's coastal waters.

The plant discharges into a coastal watershed that drains into the Atlantic Ocean. The region's aquatic ecosystems include mangroves and estuaries that support diverse marine life, including fish and crustaceans. Effective secondary treatment helps reduce nutrient loading and organic pollution, which is critical for maintaining water quality in these sensitive coastal environments.