Emiliano Zapata 2 Sur Wastewater Treatment Plant, Tlaxcala, Mexico

Emiliano Zapata 2 Sur is a municipal wastewater treatment plant located in the town of Emiliano Zapata, Tlaxcala, Mexico. The plant serves a population of approximately 1,853 residents, reflecting its role in managing domestic wastewater for this small community. It is situated inland, more than 10 km from the coast, and operates within the regulatory framework of Mexico's national water laws. The plant provides secondary treatment, which is the standard level required for municipal wastewater in Mexico under NOM-001-SEMARNAT-1996. With a designed capacity of 604.80 cubic meters per day and an actual discharge volume of 175.39 cubic meters per day, the plant operates well below its capacity, indicating potential for future growth or seasonal variations. Secondary treatment typically involves biological processes to reduce organic matter and suspended solids. The treated effluent is discharged into local water bodies that eventually drain into the Gulf of Mexico via the Pánuco River basin. The plant's operation helps protect downstream ecosystems and water quality in the region, supporting aquatic life and reducing pollution loads in the watershed.

The plant discharges into local streams that are part of the Pánuco River basin, which flows into the Gulf of Mexico. This watershed supports diverse aquatic habitats and is important for regional biodiversity. The secondary treatment provided helps mitigate nutrient and organic pollution, reducing the risk of eutrophication in downstream water bodies and protecting the ecological health of the Gulf coastal zone.