Overview
ETE Sarapui is a secondary wastewater treatment plant in Belford Roxo, Rio de Janeiro, Brazil. It serves approximately 5,610 people and discharges treated effluent near the coast.
ETE Sarapui is a municipal wastewater treatment plant located in Belford Roxo, within the metropolitan region of Rio de Janeiro, Brazil. The plant serves a population of around 5,610 residents, reflecting its role in managing domestic wastewater for a smaller community in the densely populated Baixada Fluminense area. The plant provides secondary treatment, which is the standard biological process required under Brazilian regulations (CONAMA resolutions) for most urban wastewater. The plant's discharge volume of approximately 932 cubic meters per day aligns with the scale expected for a population of this size. Brazilian environmental law mandates that such facilities comply with effluent quality standards to protect receiving waters. Located less than 10 kilometers from the Atlantic coast, ETE Sarapui discharges into the local drainage network that ultimately reaches Guanabara Bay. This bay is a large, ecologically important estuary that supports diverse aquatic life and is a focus of ongoing restoration efforts. The plant's operation contributes to reducing pollution loads in this sensitive coastal environment.
Environmental context
The plant's treated effluent flows into the Sarapui River, a tributary of Guanabara Bay, which is a major estuarine system on the coast of Rio de Janeiro state. Guanabara Bay receives freshwater from several rivers and supports mangroves, fish, and bird populations. The bay's ecological health is influenced by urban runoff and wastewater discharges, making treatment plants like ETE Sarapui critical for controlling nutrient and pathogen inputs. The bay ultimately opens to the South Atlantic Ocean.
Frequently asked questions
ETE Sarapui is located in Belford Roxo, in the state of Rio de Janeiro, Brazil. Its address is Rua da Esperanca, Jardim Gláucia, within the metropolitan region of Rio de Janeiro.
The plant serves approximately 5,610 people, making it a small-scale municipal wastewater treatment facility.
The plant discharges treated effluent into the Sarapui River, which flows into Guanabara Bay and then to the Atlantic Ocean. It is located within 10 km of the coast.
ETE Sarapui provides secondary treatment, which is the standard biological process required by Brazilian regulations for urban wastewater to reduce organic matter and pollutants.
The plant operates under Brazil's CONAMA resolutions and state-level environmental permits, which set effluent quality standards. For small plants like this, secondary treatment is typical, and compliance is monitored by the environmental agency of Rio de Janeiro.
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