ETE GRANJA LISBOA Wastewater Treatment Plant, Maracanaú, Ceará, Brazil

ETE GRANJA LISBOA is a wastewater treatment plant located in Maracanaú, within the metropolitan region of Fortaleza, Ceará, Brazil. The plant serves a population of approximately 2,968 people, classifying it as a small-scale facility in the context of Brazilian sanitation infrastructure. The plant provides secondary treatment, which is the standard level required by Brazilian regulations (CONAMA 430/2011) for most inland and coastal discharges. Secondary treatment typically involves biological processes to reduce organic matter and suspended solids. The plant's discharge volume is reported as 426.83 cubic meters per day. Situated within 10 km of the coast, the plant's effluent ultimately reaches the Atlantic Ocean via local drainage systems. The region's semi-arid climate and coastal ecosystems make proper wastewater treatment essential for protecting marine water quality and public health. The plant operates under Brazil's National Environmental Council (CONAMA) standards, which mandate effluent quality limits for BOD, COD, and other parameters.

The plant discharges into the coastal watershed of the Atlantic Ocean near Fortaleza. The receiving waters support diverse marine life, including mangroves and estuaries that are ecologically sensitive. Proper treatment is critical to prevent nutrient loading and contamination of coastal ecosystems, which are important for local fisheries and tourism.