ETE Frecheirinha Wastewater Treatment Plant - Frecheirinha, Ceará, Brazil

ETE Frecheirinha is a municipal wastewater treatment plant located in the Papagaio district of Frecheirinha, in the state of Ceará, northeastern Brazil. The plant serves a population of 1,584 residents, placing it in the small agglomeration category under Brazilian wastewater management frameworks. It operates as part of the region's sanitation infrastructure, managed by local authorities. The plant provides secondary treatment, which is the standard biological treatment level required for most municipal wastewater in Brazil under the National Environmental Council (CONAMA) resolutions. Secondary treatment typically involves biological processes to reduce organic matter and suspended solids. The plant's discharge volume is reported at 165.02 thousand cubic meters per year, indicating consistent operation. The treated effluent is discharged into local water bodies that drain into the Atlantic Ocean via the Acaraú River basin. The region's semi-arid climate makes water quality management particularly important for downstream communities and ecosystems. The plant helps protect local streams and groundwater from untreated sewage, supporting public health and environmental quality in the surrounding area.

The plant's discharge enters the Acaraú River basin, which flows northward to the Atlantic Ocean near the city of Acaraú. This coastal region supports mangrove ecosystems and estuarine habitats that are important for fish and bird species. The semi-arid climate of Ceará means that water resources are scarce, and maintaining good water quality in the river system is critical for both human use and ecological balance.