ETE Propria Wastewater Treatment Plant, Propriá, Sergipe, Brazil

ETE Propria is a wastewater treatment plant located in São Vicente, Propriá, in the state of Sergipe, Brazil. The plant serves a population of 8,841, placing it in the small agglomeration category under Brazilian wastewater management frameworks. It is situated in the Northeast Region of Brazil, an area characterized by a semi-arid climate and seasonal rainfall patterns. Plants of this scale in Brazil typically operate under federal regulations (CONAMA resolutions) and state-level environmental permits. The designed capacity of 1.00 volume unit suggests a facility sized for the local community's needs. Brazilian wastewater treatment standards generally require at least secondary treatment for municipal plants, with effluent quality standards set by the environmental agency. The plant's treated effluent likely discharges into a local watercourse that flows into the São Francisco River basin, one of Brazil's major river systems. The São Francisco River ultimately reaches the Atlantic Ocean, supporting diverse aquatic ecosystems and providing water for agriculture and communities along its course. The plant plays a role in protecting downstream water quality in this ecologically important region.

The plant is located in the São Francisco River basin, which drains into the Atlantic Ocean. The São Francisco River is a vital water source for northeastern Brazil, supporting agriculture, fisheries, and biodiversity. The plant's discharge contributes to maintaining water quality in this semi-arid region, where water resources are particularly sensitive to pollution. Downstream ecosystems include riparian forests and estuarine habitats near the river's mouth.