ETE Picada 48 Wastewater Treatment Plant, Dois Irmãos, Rio Grande do Sul

ETE Picada 48 is a wastewater treatment plant located in Dois Irmãos, a municipality in the state of Rio Grande do Sul, Brazil. The plant serves a population of 4,354 residents, providing secondary treatment to municipal wastewater. It is situated in the metropolitan region of Porto Alegre, an area characterized by urban and industrial development. The plant operates under Brazil's national environmental regulations, which require secondary treatment for urban wastewater. With a discharge volume of 468.14 cubic meters per day, the facility manages the wastewater generated by the local community. The treatment process ensures that effluent meets quality standards before being released into the environment. The treated wastewater from ETE Picada 48 is discharged into local water bodies that ultimately drain into the Rio dos Sinos basin, a major river system in southern Brazil. This river flows into the Guaíba Lake and then into the Lagoa dos Patos, a large coastal lagoon. The plant plays a crucial role in protecting the water quality of these downstream ecosystems.

The plant's effluent enters the Rio dos Sinos watershed, which drains into Guaíba Lake and eventually the Lagoa dos Patos lagoon. This lagoon is an ecologically important coastal system that supports diverse aquatic life and serves as a nursery for fish species. The secondary treatment provided by the plant helps reduce organic pollution and nutrient loads, mitigating eutrophication risks in the downstream water bodies.