ETE COAHB VI - Wastewater Treatment Plant in Petrolina, Pernambuco, Brazil

ETE COAHB VI is a wastewater treatment plant located in the Cohab São Francisco neighborhood of Petrolina, Pernambuco, Brazil. The plant serves a population of about 5,682 residents, classifying it as a small-scale municipal facility within the urban infrastructure of the Petrolina region. As a Brazilian wastewater treatment plant, ETE COAHB VI is subject to the country's environmental regulations, including CONAMA Resolution 430/2011, which sets effluent discharge standards. For plants of this size, secondary treatment is typically required to meet water quality objectives. The plant's designed capacity is 1.00 volume unit, indicating its intended scale. The treated effluent from ETE COAHB VI likely discharges into a local watercourse that drains into the São Francisco River, a major river in northeastern Brazil. The São Francisco River flows eastward to the Atlantic Ocean, supporting diverse aquatic ecosystems and providing water for agriculture, industry, and communities along its course.

The plant's receiving water body is part of the São Francisco River basin, one of Brazil's most important river systems. The São Francisco River flows through the semi-arid Caatinga biome and supports a variety of fish species and migratory birds. Downstream, the river reaches the Atlantic Ocean near the border of Alagoas and Sergipe states, where it forms an ecologically sensitive estuary that provides nursery habitat for marine life.