ETE CACEQUI Wastewater Treatment Plant - Cacequi, Rio Grande do Sul, Brazil

ETE CACEQUI is a municipal wastewater treatment facility located in Cacequi, a city in the state of Rio Grande do Sul, Brazil. The plant serves a population of approximately 7,858 people, classifying it as a small to medium-sized agglomeration. It is situated inland, away from coastal areas, and operates under Brazil's national environmental regulations. The plant provides secondary treatment, which is the standard biological treatment process required for most municipal wastewater in Brazil. This level of treatment significantly reduces organic matter and suspended solids before discharge. Brazilian regulations, such as CONAMA Resolution 430/2011, set effluent quality standards for secondary treatment plants. The treated effluent is discharged into local water bodies within the Uruguay River basin, which drains into the Rio de la Plata estuary and ultimately the Atlantic Ocean. The plant plays a crucial role in protecting the water quality of local streams and rivers, supporting aquatic life and downstream communities that rely on these water resources.

The plant discharges into the Uruguay River basin, a major hydrological system in southern Brazil that flows into the Rio de la Plata estuary. This watershed supports diverse aquatic ecosystems and is important for regional agriculture and water supply. The secondary treatment helps reduce nutrient and organic pollution, mitigating eutrophication risks in downstream water bodies.