ETE Suzano Wastewater Treatment Plant, Suzano, São Paulo, Brazil

ETE Suzano is a municipal wastewater treatment plant located in Suzano, within the São Paulo metropolitan region of Brazil. The facility serves a population of approximately 162,000, classifying it as a large agglomeration under Brazilian regulatory standards. Its designed capacity is 1.00 cubic meter per second, indicating a substantial infrastructure investment for the region. As a plant in Brazil, ETE Suzano is subject to CONAMA Resolution 430/2011 and state-level environmental legislation, which set effluent discharge standards and treatment requirements. For a plant of this scale, secondary treatment is typically expected to reduce organic load and suspended solids before discharge. Its capacity suggests it plays a key role in local sanitation. The treated effluent from ETE Suzano likely discharges into a tributary of the Tietê River basin, which flows through the São Paulo metropolitan area and ultimately reaches the Paraná River system. This watershed is ecologically significant, supporting diverse aquatic life and providing water for millions of people. Proper treatment at this plant helps protect downstream water quality and public health.

The plant discharges into the Tietê River basin, a major waterway in southeastern Brazil that flows through São Paulo state and joins the Paraná River. The Tietê River is ecologically sensitive, supporting diverse fish species and providing water for agriculture and urban use. Downstream, the Paraná River forms the La Plata Basin, one of the largest watersheds in South America. Effective wastewater treatment at ETE Suzano is critical to reducing nutrient and organic pollution in this densely populated and industrialized region.