ETE Herculandia II - Secondary Wastewater Treatment Plant in Herculândia, São Paulo

ETE Herculandia II is a municipal wastewater treatment plant located in Herculândia, within the state of São Paulo, Brazil. The plant serves a population of approximately 3,940 residents, classifying it as a small-scale facility under Brazilian wastewater management standards. The plant employs secondary treatment, which is the minimum required level for most urban wastewater in Brazil under federal regulations (CONAMA Resolution 430/2011). Secondary treatment typically involves biological processes to reduce organic matter and suspended solids. Likely cubic meters per day or similar). The treated effluent from ETE Herculandia II is discharged into local water bodies that ultimately drain into the Paraná River basin, one of South America's major river systems. The plant plays a key role in protecting downstream water quality and aquatic ecosystems in the region.

The plant discharges into local streams that are part of the Paraná River basin, which flows through southeastern Brazil and into the Río de la Plata estuary. The downstream environment supports diverse aquatic life and is important for regional water supply. The secondary treatment provided by the plant helps reduce nutrient and organic pollution, mitigating eutrophication risks in receiving waters.