ETE Santana do Seridó - Secondary Wastewater Treatment in Santana do Seridó, Brazil

ETE Santana do Seridó is a municipal wastewater treatment facility located in Santana do Seridó, a municipality in the state of Rio Grande do Norte, Brazil. The plant serves a small population of approximately 185 residents, reflecting the rural character of the region. It operates under Brazil's national environmental regulations, which set standards for effluent quality and water resource protection. The plant provides secondary treatment, a standard level for small communities in Brazil. Secondary treatment typically involves biological processes to reduce organic matter and suspended solids. The plant discharges a daily volume of 12.74 cubic meters of treated wastewater. The plant's scale aligns with the needs of a small agglomeration. The treated effluent is released into local water bodies that drain into the Piranhas-Açu River basin, eventually reaching the Atlantic Ocean. This region is part of the semi-arid Caatinga biome, where water resources are scarce and sensitive to pollution. Proper treatment helps protect downstream ecosystems and supports water quality for local communities and wildlife.

The plant discharges into the Piranhas-Açu River basin, which flows through the semi-arid Caatinga region of northeastern Brazil before reaching the Atlantic Ocean. This watershed supports diverse aquatic life and is critical for local water supply. The Caatinga biome is ecologically sensitive, with seasonal rivers that depend on adequate water quality to sustain biodiversity and human uses.