ETE SAO TOMe RN - Secondary Wastewater Treatment Plant in São Tomé, Rio Grande do Norte

ETE SAO TOMe RN is a wastewater treatment plant located in São Tomé, a municipality in the state of Rio Grande do Norte, Brazil. The plant serves a small population of 656 residents, reflecting its role in a rural or small-town setting within the Northeast region of Brazil. The plant provides secondary treatment, which is the standard biological treatment process for removing organic matter and suspended solids. In Brazil, wastewater treatment plants are regulated under national environmental standards (CONAMA resolutions) and state-level agencies. For small agglomerations like São Tomé, secondary treatment is typically sufficient to meet effluent quality requirements for discharge into local water bodies. The treated effluent is discharged into the local watershed, which ultimately drains into the Atlantic Ocean via the Potengi River system. The region's semi-arid climate means that water resources are particularly sensitive, and proper treatment helps protect downstream aquatic ecosystems and water quality for communities relying on these waters.

The plant discharges into the Potengi River basin, which flows through the state of Rio Grande do Norte and empties into the Atlantic Ocean near Natal. This watershed supports diverse aquatic life and is important for local fisheries and agriculture. The semi-arid climate makes the region's water resources vulnerable to pollution, so effective wastewater treatment is critical for maintaining ecological balance and public health.