ETE Olaria Corumba - Secondary Wastewater Treatment Plant in Corumba, Brazil

ETE Olaria Corumba is a municipal wastewater treatment plant located in Corumba, Mato Grosso do Sul, Brazil. It serves a population of approximately 6,285 residents, classifying it as a small-scale facility within the country's sanitation infrastructure. The plant is situated in the Vila Militar area of the city, near the Paraguay River basin. The plant provides secondary treatment, which is the standard biological treatment process required under Brazilian regulations (CONAMA Resolution 430/2011) for most urban wastewater. This level of treatment removes organic matter and suspended solids, reducing the pollutant load before discharge. The plant operates with a daily discharge volume of 672.19 m³, reflecting its capacity to handle the local community's wastewater. The treated effluent is released into the local environment, ultimately draining into the Paraguay River, a major waterway in the Pantanal region. The Paraguay River flows south through the Pantanal wetlands, one of the world's largest tropical wetlands, and eventually joins the Parana River system. The plant's operation is critical for protecting the sensitive aquatic ecosystems of the Pantanal, which support diverse wildlife and migratory species.

The plant discharges into the Paraguay River basin, which feeds the Pantanal, a vast floodplain ecosystem of global ecological importance. The Pantanal supports rich biodiversity, including jaguars, capybaras, and hundreds of bird species. Downstream, the Paraguay River flows into the Parana River and ultimately the Rio de la Plata estuary. Secondary treatment helps reduce nutrient and organic pollution, mitigating eutrophication risks in these downstream waters.