ETE Salgueiro Wastewater Treatment Plant, Salgueiro, Pernambuco, Brazil

ETE Salgueiro is a wastewater treatment plant located in Salgueiro, within the state of Pernambuco, Brazil. The facility serves a population of around 16,108 residents, classifying it as a medium-sized agglomeration under Brazilian regulatory frameworks. As a plant in Brazil, ETE Salgueiro is subject to the National Environmental Council (CONAMA) resolutions and state-level environmental permits, which set standards for effluent quality and treatment. The plant's treated effluent is discharged into local waterways that ultimately drain into the São Francisco River basin, a major river system in northeastern Brazil. The São Francisco River supports diverse aquatic ecosystems and provides water for agriculture, industry, and human consumption across multiple states. Proper treatment at ETE Salgueiro helps safeguard water quality in this ecologically and economically important basin.

The plant discharges into the São Francisco River basin, which flows through the semi-arid Caatinga region of northeastern Brazil. The river is a critical water source for millions of people and supports a variety of fish species, including migratory species. Downstream, the river reaches the Atlantic Ocean, where its estuary provides nursery habitats for marine life. Protecting water quality in this basin is essential for maintaining regional biodiversity and supporting local communities.