Overview
ETE Sarapui is a municipal wastewater treatment plant in Belford Roxo, Rio de Janeiro, Brazil, serving approximately 31,810 people. It operates within the regulatory framework of Brazil's national water policy.
ETE Sarapui is a wastewater treatment plant located in Belford Roxo, within the metropolitan region of Rio de Janeiro, Brazil. The plant serves a population of around 31,810, placing it in the medium agglomeration category for Brazilian sanitation infrastructure. As part of the state's water management system, it contributes to the treatment of domestic sewage from the densely populated Baixada Fluminense region. Brazil's wastewater treatment standards are governed by CONAMA resolutions and state-level environmental agencies. For plants of this scale, secondary treatment is typically required to reduce organic load and pathogens before discharge. The plant's designed capacity is 1.00 (likely in cubic meters per second or another unit), indicating a facility sized for the local population. The regulatory framework ensures compliance with effluent quality standards. The treated effluent from ETE Sarapui is discharged into local water bodies that drain into Guanabara Bay, a large coastal bay in Rio de Janeiro state. Guanabara Bay is an ecologically significant estuary that supports diverse aquatic life and is a critical resource for fisheries and recreation. The bay ultimately connects to the Atlantic Ocean. Protecting this watershed is essential for maintaining water quality and ecosystem health in one of Brazil's most urbanized regions.
Environmental context
ETE Sarapui discharges into the Sarapui River, a tributary of Guanabara Bay, which flows into the Atlantic Ocean. Guanabara Bay is a semi-enclosed estuary with high ecological importance, supporting mangroves, fish, and bird species. The bay faces pressures from urban runoff and industrial pollution, making effective wastewater treatment crucial for preserving water quality and biodiversity in this coastal ecosystem.
Frequently asked questions
ETE Sarapui is located in Belford Roxo, in the state of Rio de Janeiro, Brazil, within the metropolitan region of Rio de Janeiro.
The plant serves approximately 31,810 people, classifying it as a medium-sized agglomeration in Brazil's sanitation system.
The treated effluent is discharged into the Sarapui River, which flows into Guanabara Bay and then into the Atlantic Ocean.
The plant operates under Brazil's national water policy, regulated by CONAMA resolutions and the Rio de Janeiro state environmental agency, which set effluent quality standards for wastewater treatment plants.
For medium-sized agglomerations in Brazil, secondary treatment is typically required to reduce organic matter and pathogens, often using activated sludge or similar biological processes.
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