Overview
ETE LAGOA AREA 13 is a wastewater treatment plant serving approximately 11,374 people in Manaus, Amazonas, Brazil. It operates under Brazil's national water quality regulations.
ETE LAGOA AREA 13 is a wastewater treatment plant located in Manaus, the capital of Amazonas state in northern Brazil. Situated in the heart of the Amazon rainforest, the plant serves a population of about 11,374 residents, contributing to the city's sanitation infrastructure. As a medium-sized agglomeration, the plant is expected to meet secondary treatment standards under Brazil's CONAMA Resolution 430/2011 and the National Water Resources Policy. These regulations mandate effluent quality standards for organic matter and suspended solids, with more stringent requirements for water bodies classified as sensitive. The plant's treated effluent likely discharges into a tributary of the Rio Negro, which flows into the Amazon River and ultimately the Atlantic Ocean. The Amazon basin is one of the most biodiverse ecosystems on Earth, and proper wastewater treatment is critical to protecting aquatic life and water quality in this globally significant watershed.
Environmental context
The plant is located in the Amazon River basin, the largest river system in the world by discharge volume. Treated effluent from the plant likely enters a local stream or tributary that feeds into the Rio Negro, a major blackwater river known for its high acidity and low nutrient levels. The Rio Negro joins the Amazon River near Manaus, and the combined flow travels eastward through the Amazon rainforest to the Atlantic Ocean. The surrounding ecosystem supports an extraordinary diversity of fish, amphibians, and aquatic plants, making effective wastewater treatment essential to prevent eutrophication and protect sensitive habitats.
Frequently asked questions
ETE LAGOA AREA 13 is located in Manaus, the capital city of Amazonas state in northern Brazil. It serves a population of approximately 11,374 residents in the Lagoa Area 13 neighborhood.
The plant serves about 11,374 people, classifying it as a medium-sized agglomeration under Brazilian wastewater regulations.
The treated effluent is discharged into a local water body that flows into the Rio Negro, a major tributary of the Amazon River. The plant's location in the Amazon basin means effluent ultimately reaches the Atlantic Ocean.
The plant operates under Brazil's CONAMA Resolution 430/2011, which sets effluent quality standards for wastewater treatment plants. For medium-sized agglomerations like this, secondary treatment is typically required to reduce organic matter and suspended solids.
In Brazil, plants serving 10,000 to 50,000 people generally employ secondary treatment processes such as activated sludge, anaerobic lagoons, or upflow anaerobic sludge blanket (UASB) reactors. These systems achieve significant removal of biochemical oxygen demand (BOD) and total suspended solids (TSS) before discharge.
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