Overview
ETE MANIBRA is a secondary wastewater treatment plant in Barra do Piraí, Rio de Janeiro, Brazil, serving approximately 7,816 people with a discharge volume of 906.70 units.
ETE MANIBRA is a municipal wastewater treatment plant located in Barra do Piraí, within the state of Rio de Janeiro, Brazil. The facility serves a population of around 7,816 residents, placing it in the small-to-medium agglomeration category for Brazilian wastewater infrastructure. The plant provides secondary treatment, which is the standard level required under Brazilian regulations for communities of this size. Secondary treatment typically involves biological processes to reduce organic matter and suspended solids, ensuring effluent meets basic environmental standards before discharge. The treated effluent is discharged into local water bodies that ultimately drain into the Paraíba do Sul River basin, a major river system in southeastern Brazil. This river supplies water to millions of people and supports diverse aquatic ecosystems, making proper treatment essential for protecting downstream water quality and public health.
Environmental context
The plant discharges into the Paraíba do Sul River basin, which flows through the states of São Paulo, Rio de Janeiro, and Minas Gerais before reaching the Atlantic Ocean near Campos dos Goytacazes. This river is a critical water source for the region and supports a variety of fish species and riparian habitats. Effective secondary treatment helps mitigate nutrient loading and organic pollution, preserving the ecological health of the river and its downstream estuary.
Frequently asked questions
ETE MANIBRA is located in Barra do Piraí, in the state of Rio de Janeiro, Brazil, along Rodovia Lúcio Meira.
The plant serves approximately 7,816 people, making it a small-to-medium sized treatment facility.
The plant uses secondary treatment, which typically involves biological processes to reduce organic matter and suspended solids before discharge.
The plant discharges into the Paraíba do Sul River basin, a major waterway that supplies drinking water and supports ecosystems in southeastern Brazil.
Brazilian regulations require secondary treatment for communities of this size. The plant operates under federal and state environmental standards to ensure effluent quality protects receiving waters.
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