ETE Búzios Wastewater Treatment Plant, Armação dos Búzios, Rio de Janeiro

ETE Búzios is a wastewater treatment plant located in Armação dos Búzios, a coastal city in the state of Rio de Janeiro, Brazil. The plant serves a population of approximately 20,946 residents, classifying it as a medium-sized facility within the region's sanitation infrastructure. As a Brazilian treatment plant, ETE Búzios is subject to federal regulations under CONAMA resolutions and state-level environmental licensing by INEA (Instituto Estadual do Ambiente). For agglomerations of this scale, secondary treatment is typically required to meet discharge standards, especially in sensitive coastal areas. The plant's treated effluent likely discharges into the Atlantic Ocean via local watercourses, given its proximity to the coast (within 50 km). The surrounding region includes the Cabo Frio coastal zone, which supports diverse marine ecosystems and is important for tourism and fisheries.

The plant is located in the coastal watershed of Armação dos Búzios, with treated effluent potentially reaching the Atlantic Ocean through local drainage. The region's coastal waters support coral reefs, mangroves, and marine biodiversity, making proper treatment essential to prevent nutrient pollution and protect recreational beaches.