ETE II Beata Angelina - Secondary Wastewater Treatment Plant in Toledo, Paraná, Brazil

ETE II Beata Angelina is a municipal wastewater treatment plant located in the Jardim Porto Alegre neighborhood of Toledo, in the state of Paraná, Brazil. The facility serves a population of around 6,376 residents, classifying it as a small-scale treatment plant within the region's sanitation infrastructure. The plant provides secondary treatment, which is the standard biological process required for municipal wastewater in Brazil under national regulations. Secondary treatment typically involves biological degradation of organic matter, followed by sedimentation. Brazilian environmental legislation, such as CONAMA resolutions, sets effluent quality standards for such facilities. The treated effluent from ETE II Beata Angelina is discharged into local watercourses that ultimately drain into the Paraná River basin, one of South America's major river systems. The Paraná River flows southward through Brazil, Paraguay, and Argentina, eventually reaching the Río de la Plata estuary. The plant's operations help protect downstream water quality and aquatic ecosystems in this ecologically significant basin.

The plant discharges into local streams that are part of the Paraná River basin, which drains a vast area of South America. The Paraná River supports diverse aquatic life and is an important water resource for agriculture, industry, and communities. Downstream, the river flows into the Río de la Plata estuary, a critical habitat for fish and migratory species. Protecting water quality in this basin is essential for maintaining ecological balance and regional water security.