ETE CRATEUS 6 - Secondary Wastewater Treatment Plant in Crateús, Ceará

ETE CRATEUS 6 is a municipal wastewater treatment plant located in Crateús, a city in the state of Ceará, northeastern Brazil. The plant serves a population of 2,558, placing it in the small-agglomeration category under Brazilian regulatory frameworks. The plant provides secondary treatment, which is the standard level required by Brazilian environmental regulations for communities of this size. Secondary treatment typically involves biological processes to remove organic matter and suspended solids, ensuring the effluent meets basic quality standards before discharge. The treated wastewater is discharged into local water bodies that ultimately drain into the Atlantic Ocean via the Parnaíba River basin or other regional systems. The semi-arid climate of Ceará makes water quality management particularly important for sustaining local ecosystems and downstream water users.

The plant discharges into the local watershed of the Parnaíba River basin, which flows northward into the Atlantic Ocean. The region's semi-arid climate means that water bodies have variable flows, and maintaining water quality is critical for aquatic life and human use. The downstream environment supports diverse species adapted to seasonal conditions.