ETE 2 AREIA - Secondary Wastewater Treatment Plant in Areia, Paraíba, Brazil

ETE 2 AREIA is a wastewater treatment plant located in Areia, within the state of Paraíba, Brazil. Serving a population of approximately 3,916 residents, it is a secondary-level treatment facility that plays a key role in managing municipal wastewater for this inland community in the Nordeste region. As a secondary treatment plant, ETE 2 AREIA provides biological treatment to reduce organic matter and suspended solids, meeting the standards expected for communities of this size under Brazilian environmental regulations. The plant operates under the national framework of CONAMA resolutions and state-level environmental agencies, which set discharge limits for treated effluent. The treated wastewater from ETE 2 AREIA is discharged into local water bodies that ultimately drain into the Atlantic Ocean via the Paraíba do Norte River basin. This inland location helps protect downstream aquatic ecosystems by reducing pollutant loads before they reach larger rivers and coastal areas.

The plant discharges into the Paraíba do Norte River basin, which flows eastward to the Atlantic Ocean near João Pessoa. This watershed supports diverse aquatic life and provides water for agriculture and communities downstream. Proper treatment at ETE 2 AREIA helps maintain water quality in this semi-arid region where water resources are critical.