Overview
ETE GRANDE RIO I is a secondary treatment plant serving Itaboraí, Rio de Janeiro, Brazil. It treats wastewater for approximately 4,823 people, discharging 694.07 m³/day into the local watershed.
ETE GRANDE RIO I is a municipal wastewater treatment plant located in Itaboraí, within the metropolitan region of Rio de Janeiro, Brazil. The plant serves a population of about 4,823 residents, reflecting its role in managing domestic wastewater for a small community in the state of Rio de Janeiro. The plant employs secondary treatment, which is the standard biological process required under Brazilian regulations (CONAMA resolutions) for most urban wastewater. Secondary treatment typically involves biological degradation of organic matter, reducing biochemical oxygen demand (BOD) and suspended solids before discharge. The plant's discharge volume is reported at 694.07 cubic meters per day, indicating its operational scale. Treated effluent from ETE GRANDE RIO I is discharged into the local drainage network, which ultimately flows into Guanabara Bay, a large estuarine system on the Atlantic coast. Guanabara Bay is ecologically significant, supporting diverse aquatic life and serving as a critical habitat for fish and migratory birds. The plant's operation helps reduce pollution loads entering this sensitive coastal ecosystem.
Environmental context
The plant discharges into the watershed that drains to Guanabara Bay, a major estuarine system in southeastern Brazil. Guanabara Bay is a semi-enclosed coastal body connected to the Atlantic Ocean, supporting mangroves, wetlands, and diverse marine species. The bay faces pressures from urbanization and industrial activities, making effective wastewater treatment crucial for maintaining water quality and ecosystem health. The plant's secondary treatment helps mitigate nutrient and organic pollution entering this ecologically important water body.
Frequently asked questions
ETE GRANDE RIO I is located in Itaboraí, a city in the state of Rio de Janeiro, Brazil. It lies within the metropolitan region of Rio de Janeiro, approximately 30 km east of the city center.
The plant serves approximately 4,823 people, making it a small-scale municipal wastewater treatment facility for the local community.
The plant discharges treated effluent into the local drainage network, which eventually flows into Guanabara Bay, a coastal estuary on the Atlantic Ocean.
The plant provides secondary treatment, which involves biological processes to remove organic matter and suspended solids, meeting Brazilian regulatory standards for wastewater discharge.
The plant operates under Brazil's CONAMA resolutions, which set discharge standards for organic matter, nutrients, and pathogens. Secondary treatment is typical for plants of this scale, ensuring compliance with environmental protection goals for water bodies like Guanabara Bay.
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