ETE Meridiano - Secondary Wastewater Treatment Plant in Fernandópolis, São Paulo

ETE Meridiano is a wastewater treatment plant located in Fernandópolis, in the state of São Paulo, Brazil. It serves a small population of around 2,982 residents, reflecting its role in a smaller urban agglomeration within the Região Imediata de Fernandópolis. The plant provides secondary treatment, which is the standard biological treatment required under Brazilian regulations for communities of this size. The plant operates under the national environmental framework, which mandates compliance with discharge standards set by the Conselho Nacional do Meio Ambiente (CONAMA). The treated effluent is discharged into local water bodies that ultimately drain into the Paraná River basin, a major hydrological system in South America. This basin supports diverse aquatic ecosystems and is important for regional water supply and agriculture. The plant's operation helps protect downstream water quality in this ecologically significant watershed.

The plant discharges into the Paraná River basin, which flows through southeastern Brazil and eventually reaches the Río de la Plata estuary. This watershed supports a variety of aquatic life and is used for irrigation and drinking water. The secondary treatment provided by ETE Meridiano reduces organic pollutants and nutrients, helping to maintain the ecological balance of the receiving waters.