ETE Matinhos Wastewater Treatment Plant, Matinhos, Paraná, Brazil

ETE Matinhos is a wastewater treatment plant serving the municipality of Matinhos in the state of Paraná, Brazil. Located in the Balneário Inajá neighborhood, the facility handles wastewater from a population of approximately 16,429 residents, placing it in the medium-agglomeration category under Brazilian regulatory frameworks. Brazil's wastewater treatment standards are governed by CONAMA resolutions and state-level environmental agencies. For plants serving communities of this size, secondary treatment is typically required to reduce organic load and pathogens before discharge. The plant's designed capacity is 1.00 volume unit, indicating its operational scale. The treated effluent from ETE Matinhos is discharged into local water bodies that drain into the Atlantic Ocean. The region's coastal ecosystems include mangroves and estuaries that support diverse aquatic life and are important for local fisheries. Proper treatment helps protect these sensitive environments from nutrient pollution and pathogens.

ETE Matinhos discharges into the coastal watershed of Paraná, which flows into the Atlantic Ocean. The receiving waters include estuaries and mangrove ecosystems that serve as nursery habitats for fish and crustaceans. These coastal areas are ecologically sensitive, supporting biodiversity and providing natural water filtration. Protecting water quality in this region is critical for maintaining the health of downstream marine environments and local fishing communities.