Overview
ETE GRANDE RIO II is a secondary wastewater treatment plant serving Itaboraí, Rio de Janeiro, Brazil. It treats municipal wastewater for a population of 4,823 and discharges 694.07 cubic meters per day.
ETE GRANDE RIO II is a wastewater treatment plant located in Itaboraí, within the metropolitan region of Rio de Janeiro, Brazil. The facility serves a population of approximately 4,823, classifying it as a small-scale municipal treatment plant in the state of Rio de Janeiro. The plant provides secondary treatment, which is the standard biological treatment stage required under Brazilian regulations for most urban wastewater. Secondary treatment typically involves biological processes to reduce organic matter and suspended solids. The plant discharges an average of 694.07 cubic meters of treated effluent per day. The treated effluent from ETE GRANDE RIO II is discharged into local water bodies that ultimately drain into Guanabara Bay, a large coastal bay in southeastern Brazil. The bay is an ecologically significant estuary that supports diverse aquatic life and is an important resource for local communities. Proper treatment at plants like ETE GRANDE RIO II helps reduce nutrient and pollutant loads entering this sensitive coastal ecosystem.
Environmental context
The plant's discharge flows into the drainage network of the Guanabara Bay watershed, a large estuarine system on the coast of Rio de Janeiro state. Guanabara Bay receives inflows from numerous rivers and streams and is ecologically important for fish, crustaceans, and migratory birds. The bay faces environmental pressures from urbanization and industrial activities, making effective wastewater treatment critical to maintaining water quality and ecosystem health.
Frequently asked questions
ETE GRANDE RIO II is located in Itaboraí, in the state of Rio de Janeiro, Brazil. It is part of the metropolitan region of Rio de Janeiro.
The plant serves a population of approximately 4,823 people, making it a small-scale municipal wastewater treatment facility.
ETE GRANDE RIO II provides secondary treatment, which typically involves biological processes to reduce organic matter and suspended solids before discharge.
In Brazil, wastewater treatment plants are regulated under federal laws such as the National Environmental Policy and CONAMA resolutions. Secondary treatment is the minimum standard for most urban areas, and plants must comply with discharge standards set by environmental agencies.
The plant discharges into the Guanabara Bay watershed, a large estuarine ecosystem that supports diverse aquatic life and is important for local fisheries and recreation. Proper treatment helps protect water quality in this sensitive coastal environment.
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