ETE Caruaru 12 e 3 - Wastewater Treatment Plant in Caruaru, Pernambuco, Brazil

ETE Caruaru 12 e 3 is a wastewater treatment facility located in the Rendeiras neighborhood of Caruaru, a city in the state of Pernambuco, Brazil. The plant serves a population of around 17,362 residents, classifying it as a medium-sized agglomeration under Brazilian standards. Caruaru is situated in the northeastern region of Brazil, an area characterized by a semi-arid climate and seasonal rainfall patterns. As a Brazilian wastewater treatment plant, ETE Caruaru 12 e 3 is subject to national regulations including CONAMA Resolution 430/2011 and state-level environmental standards. For a plant serving approximately 17,000 people, secondary treatment is typically required to reduce organic load and suspended solids before discharge. The plant's operational context aligns with Brazil's efforts to expand sanitation coverage under the National Sanitation Plan (Plansab). The treated effluent from ETE Caruaru 12 e 3 is discharged into local water bodies that ultimately drain into the Atlantic Ocean via the Capibaribe River basin. The receiving waters support diverse aquatic life and are important for regional agriculture and water supply. Protecting these water bodies from untreated sewage is critical for public health and ecosystem integrity in the semi-arid Northeast.

The plant's discharge enters the Capibaribe River basin, which flows eastward through Pernambuco and empties into the Atlantic Ocean near Recife. This watershed supports a variety of freshwater species and provides water for irrigation and domestic use. The semi-arid climate means that maintaining water quality is especially important during dry periods when dilution capacity is limited. Downstream ecosystems include mangroves and estuaries that serve as nursery habitats for fish and crustaceans.