ETE Catanduvas SC - Secondary Wastewater Treatment Plant in Catanduvas, Santa Catarina

ETE Catanduvas SC is a municipal wastewater treatment facility located in Catanduvas, a city in the western region of Santa Catarina, Brazil. The plant serves a population of approximately 5,600 residents, reflecting its role as a medium-sized treatment facility for the local community. It is situated along Rodovia Ulysses Guimarães, within the Região Geográfica Imediata de Joaçaba-Herval d'Oeste. The plant provides secondary treatment, which is the standard biological treatment level required for municipal wastewater in Brazil under the National Environment Council (CONAMA) resolutions. Secondary treatment typically involves biological processes to remove organic matter and suspended solids, ensuring effluent meets basic quality standards before discharge. The plant's discharge volume is recorded at 963.36 m³/day, indicating its operational scale. The treated effluent is discharged into a local water body, contributing to the protection of downstream ecosystems. The plant operates within the broader context of Brazil's water resources management, which aims to safeguard water quality in rivers and streams that eventually drain into the Atlantic Ocean. By treating wastewater to secondary levels, the plant helps reduce pollution loads in the regional watershed, supporting aquatic life and downstream water uses.

The plant discharges into a local watercourse that is part of the Uruguay River basin, which flows southward into the Rio de la Plata estuary and ultimately the Atlantic Ocean. The region's watershed supports diverse aquatic habitats and is important for local biodiversity. Effective wastewater treatment is crucial to prevent nutrient enrichment and contamination that could affect downstream ecosystems, including sensitive areas along the river corridor.