ETE LAJE BA Wastewater Treatment Plant, Jaguaripe, Bahia, Brazil

ETE LAJE BA is a municipal wastewater treatment plant located in the Capão II area of Cunhangi, Jaguaripe, in the state of Bahia, Brazil. Serving a population of approximately 4,383, the plant is part of the region's sanitation infrastructure under the regulatory framework of the Brazilian National Environmental Council (CONAMA) and state-level environmental agencies. The plant provides secondary treatment, which typically involves biological processes to reduce organic matter and suspended solids. It discharges an annual volume of 362.21 thousand cubic meters of treated effluent. Secondary treatment is the standard requirement for municipal plants of this scale in Brazil, in line with CONAMA Resolution 430/2011. The treated effluent from ETE LAJE BA is discharged into local water bodies that drain into the broader watershed of the Jaguaripe River basin, which flows into the Atlantic Ocean. This region is ecologically sensitive, supporting diverse aquatic life and mangrove ecosystems along the coast. Proper treatment helps protect downstream water quality and the health of the surrounding environment.

The plant discharges into the Jaguaripe River basin, which flows into the Atlantic Ocean near the coast of Bahia. This region features estuarine and mangrove ecosystems that provide critical habitat for fish, crustaceans, and migratory birds. The secondary treatment process reduces organic pollutants, helping to maintain water quality in the downstream aquatic environment.