Overview
ETE MOCANGUE is a wastewater treatment plant in Niterói, Rio de Janeiro, Brazil, serving approximately 6,484 people. It is located near Guanabara Bay, an ecologically significant coastal water body.
ETE MOCANGUE is a wastewater treatment plant located in Niterói, within the metropolitan region of Rio de Janeiro, Brazil. The plant serves a population of around 6,484 residents, placing it in the small agglomeration category under Brazilian regulatory frameworks. 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 suspended solids before discharge. The plant's designed capacity is 1.00 (likely in cubic meters per second or similar unit), indicating a modest infrastructure footprint. The plant discharges into the Guanabara Bay watershed, a highly urbanized and ecologically sensitive estuary. Guanabara Bay supports diverse aquatic life and is a critical habitat for fish and crustaceans. The bay ultimately connects to the South Atlantic Ocean, making proper treatment essential to protect coastal water quality and marine ecosystems.
Environmental context
The plant discharges into the Guanabara Bay watershed, a large estuarine system that drains into the South Atlantic Ocean. Guanabara Bay is ecologically sensitive, supporting mangroves, fish nurseries, and migratory bird populations. Urban runoff and industrial discharges have historically stressed the bay, making effective wastewater treatment crucial for maintaining water quality and biodiversity.
Frequently asked questions
ETE MOCANGUE is located in Niterói, in the state of Rio de Janeiro, Brazil. Its address is near the Rio-Niterói Bridge on Ilha da Conceição, in the northern region of the city.
ETE MOCANGUE serves approximately 6,484 people, classifying it as a small-scale wastewater treatment plant within the metropolitan region of Rio de Janeiro.
The plant discharges treated wastewater into the Guanabara Bay watershed. Guanabara Bay is a large estuary that flows into the South Atlantic Ocean, so proper treatment is essential to protect coastal water quality.
The plant operates under Brazilian environmental regulations, including CONAMA resolutions and state-level permits from Rio de Janeiro's environmental agency. These standards typically require secondary treatment for plants of this scale.
For small agglomerations in Brazil, secondary treatment is commonly required to reduce biochemical oxygen demand (BOD) and suspended solids. This may involve activated sludge, stabilization ponds, or compact treatment systems, depending on local conditions.
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