Libertad Wastewater Treatment Plant, Tabasco, Mexico

Libertad is a municipal wastewater treatment plant located in the town of Libertad, within the municipality of Tacotalpa, Tabasco, Mexico. The facility serves a population of 2,327, classifying it as a small-scale treatment plant under Mexican wastewater regulations. The plant employs secondary treatment, which is the standard level required by Mexican law (NOM-001-SEMARNAT-1996) for municipal wastewater before discharge into water bodies. With a design capacity of 259.20 cubic meters per day and an average daily discharge of 220.32 m³, the plant operates at approximately 85% capacity, indicating consistent utilization. The treated effluent is discharged into local waterways that ultimately drain into the Grijalva River basin, one of Mexico's largest hydrological systems. The Grijalva River flows northward through Tabasco into the Gulf of Mexico, supporting diverse aquatic ecosystems and providing water for agriculture and communities downstream.

The plant's discharge enters the Grijalva River basin, which drains into the Gulf of Mexico. This watershed supports rich biodiversity, including mangrove forests and wetlands in the coastal zone. The secondary treatment helps reduce organic pollutants and suspended solids, protecting downstream aquatic life and water quality for human use.