ETE GRANJA ESPERANCA Wastewater Treatment Plant, Cachoeirinha, Rio Grande do Sul

ETE GRANJA ESPERANCA is a wastewater treatment plant located in Cachoeirinha, within the metropolitan region of Porto Alegre, Rio Grande do Sul, Brazil. The plant serves a population of about 12,219 residents, classifying it as a small to medium-sized facility in the region. Brazil's wastewater treatment standards are governed by CONAMA resolutions and state-level environmental agencies. For plants of this scale, secondary treatment is typically required to meet discharge limits for organic matter and suspended solids. The plant's designed capacity is 1.00 (likely in cubic meters per second or another unit), indicating its intended scale. The treated effluent from ETE GRANJA ESPERANCA is discharged into local water bodies that drain into the Guaíba River basin, which flows into the Lagoa dos Patos lagoon system. This watershed supports diverse aquatic life and is important for regional water supply and recreation. Proper treatment helps protect downstream ecosystems and public health.

The plant discharges into the Guaíba River basin, which flows into the Lagoa dos Patos, a large coastal lagoon in southern Brazil. This lagoon is ecologically sensitive, supporting diverse fish and bird species, and serves as a critical habitat for migratory birds. The watershed also provides drinking water for the Porto Alegre metropolitan area.