ETE Amontada Wastewater Treatment Plant, Amontada, Ceará, Brazil

ETE Amontada is a municipal wastewater treatment plant located in the town of Amontada, in the state of Ceará, northeastern Brazil. The plant serves a small population of 319 residents, reflecting the scale of this inland community. It operates under Brazil's national environmental regulations, which set standards for effluent quality and water resource protection. The plant provides secondary treatment, a level that typically involves biological processes to reduce organic matter and suspended solids. Secondary treatment is the minimum standard required for most municipal plants in Brazil under CONAMA Resolution 430/2011. The plant's discharge volume is 28.40 m³/day, indicating a modest flow consistent with the small population served. The treated effluent is released into a local watercourse that eventually drains into the Atlantic Ocean via the coastal watershed of Ceará. The region's semi-arid climate means that water bodies are seasonally variable, and proper treatment is essential to protect downstream aquatic life and water quality. The plant plays a role in safeguarding local streams and the broader drainage basin from untreated sewage.

The plant discharges into a local watercourse that flows toward the Atlantic Ocean, part of the coastal drainage network of Ceará. The region's semi-arid climate results in intermittent streams, making the maintenance of water quality critical for aquatic ecosystems. The downstream environment supports diverse fish and bird species, and the plant's secondary treatment helps reduce nutrient and organic pollution that could otherwise harm these habitats.