Emiliano Zapata Wastewater Treatment Plant, Pabellón de Arteaga, Aguascalientes

The Emiliano Zapata wastewater treatment plant serves the community of Pabellón de Arteaga in the state of Aguascalientes, Mexico. With a population equivalent of 7,055, it is classified as a small-scale municipal facility. The plant operates under Mexico's national water regulations, which require secondary treatment for urban wastewater before discharge. The plant employs secondary treatment processes, which typically involve biological degradation of organic matter. Its designed capacity is 691.20 thousand cubic meters per year, and it treats an annual volume of 667.87 thousand cubic meters, indicating high utilization. As a secondary treatment plant, it meets the standard requirements for reducing biochemical oxygen demand and suspended solids. The treated effluent is discharged into local water bodies that ultimately drain into the Rio Grande de Santiago basin, which flows westward to the Pacific Ocean. The plant plays a key role in protecting downstream aquatic ecosystems and supporting water quality in the region's agricultural and urban areas.

The plant discharges into the Rio Grande de Santiago basin, which flows through Aguascalientes and Jalisco before reaching the Pacific Ocean. This watershed supports diverse aquatic life and is important for regional agriculture. The secondary treatment helps reduce nutrient and organic pollution, mitigating eutrophication risks in downstream reservoirs and coastal areas.