ETE CURRAL Wastewater Treatment Plant, Volta Redonda, Rio de Janeiro

ETE CURRAL is a wastewater treatment plant located in the Jardim Belvedere neighborhood of Volta Redonda, in the state of Rio de Janeiro, Brazil. The plant serves a population of about 12,113 residents, classifying it as a medium-sized facility within the region's sanitation infrastructure. As a Brazilian wastewater treatment plant, ETE CURRAL is subject to CONAMA Resolution 430/2011 and other federal regulations that set effluent discharge standards. For agglomerations of this scale, secondary treatment is typically required to reduce organic load and suspended solids before discharge into receiving waters. The plant's treated effluent is discharged into local water bodies that are part of the Paraíba do Sul River basin, a major river system in southeastern Brazil. This river flows through the states of São Paulo, Rio de Janeiro, and Minas Gerais, ultimately reaching the Atlantic Ocean near Campos dos Goytacazes. The basin supports diverse aquatic life and provides water for millions of people.

The plant discharges into the Paraíba do Sul River basin, which drains into the Atlantic Ocean. This watershed is ecologically important, supporting fish populations and providing water for agriculture and urban use. The river's health is critical for downstream communities and the coastal ecosystem near its mouth.