Overview
ETE SUB BACIA D is a wastewater treatment plant in Piraí, Rio de Janeiro, Brazil, serving approximately 6,168 people. It operates under Brazil's national water quality regulations.
ETE SUB BACIA D is a wastewater treatment plant located in Piraí, within the state of Rio de Janeiro, Brazil. The plant serves a population of around 6,168 people, placing it in the small agglomeration category. It is situated in the Southeast region of Brazil, an area characterized by mountainous terrain and a tropical climate. Brazil's wastewater treatment standards are governed by CONAMA Resolution 430/2011 and the National Water Resources Policy. For small agglomerations like Piraí, secondary treatment is typically required to reduce organic load and protect water quality. The plant discharges into local water bodies that ultimately drain into the Paraíba do Sul River basin, a major river system supplying water to Rio de Janeiro. The downstream environment supports diverse aquatic life and is important for regional water supply and agriculture. Proper treatment helps maintain the ecological health of this watershed.
Environmental context
The plant's treated effluent flows into tributaries of the Paraíba do Sul River, which drains into the Atlantic Ocean near Campos dos Goytacazes. The Paraíba do Sul basin is ecologically significant, supporting fish populations and providing water for millions of people. The region's tropical climate and steep terrain make it sensitive to nutrient pollution, which can lead to algal blooms and oxygen depletion in downstream waters.
Frequently asked questions
ETE SUB BACIA D is located in Piraí, a municipality in the state of Rio de Janeiro, Brazil. It lies in the Southeast region, near the Paraíba do Sul River basin.
The plant serves approximately 6,168 people, classifying it as a small agglomeration under Brazilian wastewater regulations.
The plant discharges treated effluent into local water bodies that are part of the Paraíba do Sul River basin, which ultimately flows into the Atlantic Ocean.
The plant operates under Brazil's CONAMA Resolution 430/2011, which sets effluent quality standards, and the National Water Resources Policy, which governs water use and protection.
For small agglomerations in Brazil, secondary treatment is typically required to reduce biochemical oxygen demand (BOD) and suspended solids, ensuring compliance with discharge standards.
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