Aldama Wastewater Treatment Plant, Chiapas, Mexico

The Aldama wastewater treatment plant is located in the municipality of Aldama, in the state of Chiapas, Mexico. It serves a small population of 2,756 residents, reflecting its role in a rural or semi-urban setting. The plant operates with secondary treatment, which is a standard biological process that removes organic matter and suspended solids. Under Mexican regulations (NOM-001-SEMARNAT-1996 and subsequent updates), secondary treatment is typically required for discharges into water bodies. The plant has a designed capacity of 432 cubic meters per day and currently treats an average of 260.93 cubic meters daily, indicating it is operating below its full capacity. This suggests room for future population growth or increased connection rates. The treated effluent is discharged into local watercourses that eventually drain into the Grijalva River basin, one of Mexico's major hydrological systems. The Grijalva River flows northward through Chiapas and Tabasco before emptying into the Gulf of Mexico. The plant's operation helps protect downstream aquatic ecosystems and water quality in the region.

The Aldama plant discharges into the Grijalva River basin, which flows through Chiapas and Tabasco to the Gulf of Mexico. This watershed supports diverse aquatic life and provides water for agriculture and communities downstream. Secondary treatment reduces organic pollutants, helping maintain ecological balance in the river system.