ETE SAO LUIS Wastewater Treatment Plant, Campinas, São Paulo, Brazil

ETE SAO LUIS is a wastewater treatment plant located in Campinas, within the state of São Paulo, Brazil. It serves a small community of 1,421 people, reflecting its role in managing local domestic wastewater in the Campo Grande neighborhood. The plant operates under Brazil's national environmental regulations, which set standards for effluent quality and water resource protection. The plant provides secondary treatment, a standard level that removes organic matter and suspended solids through biological processes. Secondary treatment is typical for small-scale facilities in Brazil, ensuring compliance with CONAMA Resolution 430/2011 for effluent discharge. The plant's discharge volume is recorded at 196.13, indicating its operational scale. The treated effluent is discharged into local water bodies that drain into the Piracicaba River basin, part of the broader Paraná River system. This region is ecologically significant, supporting diverse aquatic life and providing water for agriculture and urban use. The plant's operation helps protect downstream water quality in this densely populated and industrialized area of southeastern Brazil.

The plant discharges into local streams that flow into the Piracicaba River, a key tributary of the Tietê River, which ultimately reaches the Paraná River basin. This watershed supports diverse aquatic ecosystems and is vital for water supply in the Campinas region. The area faces pressures from urbanization and agriculture, making effective wastewater treatment crucial for maintaining water quality and ecological balance.