ETE Joacaba e Herval d'Oeste - Wastewater Treatment Plant in Herval d'Oeste, Santa Catarina, Brazil

ETE Joacaba e Herval d'Oeste is a municipal wastewater treatment plant located in Herval d'Oeste, Santa Catarina, Brazil. It serves a population of 12,455, classifying it as a small to medium agglomeration under Brazilian sanitation standards. The plant is situated in the southern region of Brazil, an area characterized by subtropical climate and rolling hills. Brazil's wastewater treatment regulations are governed by federal laws such as CONAMA Resolution 430/2011, which sets discharge standards for effluents. For plants of this scale, secondary treatment is typically required to reduce organic load and pathogens. It operates within the national framework that mandates compliance with effluent quality standards. The plant's treated effluent likely discharges into a local stream or river within the Uruguay River basin, which flows into the Rio de la Plata estuary. This watershed supports diverse aquatic life and is important for regional water supply. Proper treatment helps protect downstream ecosystems and communities from pollution.

The plant's discharge likely enters a tributary of the Uruguay River, which flows southward into the Rio de la Plata estuary. This watershed is ecologically significant, supporting diverse fish species and providing water for agriculture and urban use. The region's subtropical climate and agricultural activity make nutrient removal important to prevent eutrophication in downstream water bodies.