ETE Nova Estância - Secondary Wastewater Treatment Plant in Estância Velha, Brazil

ETE Nova Estância is a wastewater treatment plant located in Estância Velha, a city in the Rio Grande do Sul state of Brazil. The plant serves a population of 1,583 and operates with secondary treatment, which is typical for smaller agglomerations in Brazil. It discharges a volume of 103.68 units of treated wastewater. As a secondary treatment facility, ETE Nova Estância meets the standard requirements for organic matter and suspended solids removal. In Brazil, wastewater treatment plants are regulated by federal and state environmental agencies, with CONAMA resolutions setting discharge standards. For plants of this scale, secondary treatment is generally sufficient to comply with national water quality criteria. The treated effluent from ETE Nova Estância is discharged into local water bodies that are part of the Sinos River basin, which flows into the Jacuí River and eventually reaches the Lagoa dos Patos, a large coastal lagoon in southern Brazil. The Sinos River basin is ecologically important, supporting diverse aquatic life and providing water for downstream communities. The plant's operation helps protect this watershed from untreated sewage pollution.

The plant discharges into the Sinos River basin, which flows into the Jacuí River and ultimately drains into the Lagoa dos Patos, a large coastal lagoon connected to the Atlantic Ocean. This watershed supports diverse aquatic ecosystems and is important for regional biodiversity. The secondary treatment provided by the plant helps reduce organic pollution and protect downstream water quality.