ETE 13 de Maio Wastewater Treatment Plant, Pacoti, Ceará, Brazil

ETE 13 de Maio is a wastewater treatment plant located in Pacoti, a municipality in the state of Ceará, Brazil. The plant serves a population of approximately 2,500 people, providing secondary-level treatment to domestic wastewater. It operates within the Região Geográfica Imediata de Redenção-Acarape, part of the broader Fortaleza metropolitan region. As a secondary treatment facility, ETE 13 de Maio employs biological processes to reduce organic matter and suspended solids, meeting the standards expected for small agglomerations under Brazilian regulations. The plant's discharge volume is around 248 cubic meters per day, reflecting the scale of the community it serves. Brazilian wastewater treatment is governed by CONAMA resolutions and state-level environmental agencies, which set effluent quality standards for such facilities. The treated effluent from ETE 13 de Maio is discharged into a local watercourse that ultimately drains into the Atlantic Ocean via the coastal watershed of northeastern Brazil. The region's semi-arid climate makes water quality management particularly important for maintaining aquatic ecosystems and supporting downstream uses. The plant plays a key role in protecting local water resources from untreated sewage pollution.

The plant discharges into a small river system within the Ceará coastal basin, which flows eastward toward the Atlantic Ocean. This watershed supports diverse aquatic life and is important for local communities that rely on surface water for agriculture and domestic use. The semi-arid climate means that maintaining water quality is critical for ecosystem health, especially during dry periods when dilution capacity is limited.