ETE MOLHES Wastewater Treatment Plant - Rio Grande, Brazil

ETE MOLHES is a wastewater treatment plant located in Rio Grande, a coastal city in the state of Rio Grande do Sul, Brazil. The plant serves a small population of 1,769 residents and operates with secondary treatment, which is the standard biological treatment required for municipal wastewater in Brazil under national regulations. As a secondary treatment facility, ETE MOLHES uses biological processes to remove organic matter and suspended solids from wastewater. The plant discharges approximately 527.04 cubic meters of treated effluent per day. The plant's scale aligns with small agglomerations typical of this region. The plant is situated within 10 kilometers of the Atlantic coast, making its discharge location environmentally sensitive. Treated effluent likely enters the Patos Lagoon estuary, which connects to the Atlantic Ocean. This estuarine ecosystem supports diverse aquatic life and is an important area for fisheries and migratory birds.

ETE MOLHES discharges treated wastewater into the Patos Lagoon system, a large coastal lagoon in southern Brazil that connects to the Atlantic Ocean. This estuarine environment is ecologically sensitive, supporting diverse fish, crustaceans, and bird species. The lagoon serves as a nursery for many marine species and is a critical habitat for migratory waterfowl. Proper treatment is essential to protect water quality and aquatic life in this dynamic coastal ecosystem.