Overview
ETE SUB BACIA A is a secondary wastewater treatment plant in Piraí, Rio de Janeiro, Brazil, serving approximately 1,914 people. It discharges 311.04 m³/day of treated effluent, contributing to local water quality management.
ETE SUB BACIA A is a municipal wastewater treatment plant located in Piraí, within the state of Rio de Janeiro, Brazil. The facility serves a population of about 1,914 residents, classifying it as a small-scale treatment operation in the region's sanitation infrastructure. The plant employs secondary treatment processes, which typically involve biological degradation of organic matter. Under Brazilian regulations (CONAMA resolutions), secondary treatment is the minimum standard for most inland wastewater discharges, ensuring significant reduction of pollutants before release into the environment. The treated effluent from ETE SUB BACIA A is discharged into local water bodies that ultimately drain into the Paraíba do Sul River basin, a major watercourse in southeastern Brazil. This river supplies water to millions of people and supports diverse aquatic ecosystems, making proper treatment essential for public health and environmental protection.
Environmental context
The plant discharges into the Paraíba do Sul River basin, which flows through the states of São Paulo, Rio de Janeiro, and Minas Gerais before reaching the Atlantic Ocean near Campos dos Goytacazes. This watershed supports important aquatic biodiversity and provides water for agriculture, industry, and drinking water for over 14 million people. The secondary treatment level helps reduce organic loading and protect downstream water quality.
Frequently asked questions
ETE SUB BACIA A is located in Piraí, in the state of Rio de Janeiro, Brazil. The plant is situated along Estrada Piraí Pinheiral, within the Região Geográfica Imediata de Volta Redonda-Barra Mansa.
The plant serves approximately 1,914 people, making it a small-scale municipal wastewater treatment facility in the region.
The plant discharges treated effluent into local water bodies that are part of the Paraíba do Sul River basin. The discharge volume is approximately 311.04 m³ per day.
The plant provides secondary treatment, which typically involves biological processes to remove organic matter and suspended solids. This level meets Brazilian standards for inland wastewater discharge.
Brazil's CONAMA Resolution 430/2011 sets discharge standards for wastewater treatment plants. For small plants like ETE SUB BACIA A, secondary treatment is generally required to protect receiving water bodies, especially in sensitive basins like the Paraíba do Sul.
Nearby plants