ETE ABARE Wastewater Treatment Plant, Abaré, Bahia, Brazil

ETE ABARE is a municipal wastewater treatment plant located in Abaré, a city in the state of Bahia, Brazil. The facility serves a population of around 8,595 people, making it a small-scale treatment plant in the northeastern region of the country. Its location near the São Francisco River basin places it within a semi-arid climate zone, where water resources are critically important. The plant provides secondary treatment, which is the standard level required under Brazilian regulations (CONAMA resolutions) for most urban wastewater. Secondary treatment typically involves biological processes to remove organic matter and suspended solids. The plant's discharge volume of approximately 557.65 cubic meters per day indicates its operational scale. Brazilian environmental legislation, such as CONAMA 430/2011, sets effluent quality standards for discharge into water bodies. Treated wastewater from ETE ABARE ultimately flows into the São Francisco River, one of Brazil's most important waterways, which drains into the Atlantic Ocean. The river supports diverse aquatic ecosystems and provides water for agriculture, industry, and human consumption. Proper treatment at this plant helps protect downstream water quality and the ecological health of the São Francisco basin.

The plant's treated effluent discharges into the São Francisco River basin, which flows eastward to the Atlantic Ocean. This river is a vital water source for the semi-arid Northeast region, supporting irrigation, fisheries, and biodiversity. The downstream environment includes the São Francisco River estuary, an ecologically sensitive area that provides habitat for migratory birds and aquatic species. Effective wastewater treatment is crucial to prevent nutrient pollution and maintain water quality in this important watershed.