Overview
18 de Marzo is a secondary wastewater treatment plant in Medellín, Veracruz, Mexico, serving about 1,825 people. It discharges 172.80 cubic meters of treated wastewater daily.
18 de Marzo is a municipal wastewater treatment plant located in Medellín, Veracruz, Mexico. The facility serves a population of approximately 1,825 residents, classifying it as a small-scale treatment operation within the state's wastewater infrastructure. The plant provides secondary treatment, which is the standard biological process required under Mexican regulations (NOM-001-SEMARNAT) for municipal wastewater. With a designed capacity of 362.88 cubic meters per day and a current discharge volume of 172.80 cubic meters per day, the plant operates below its full capacity. The treated effluent is discharged into local water bodies that ultimately drain into the Gulf of Mexico. The plant's coastal location within 10 km of the coast means its discharge can influence nearshore water quality and marine ecosystems in the region.
Environmental context
The plant discharges into the Papaloapan River basin, which flows into the Gulf of Mexico near the Alvarado Lagoon system. This coastal wetland area supports diverse aquatic life, including mangroves and fish species, and serves as an important migratory corridor for birds. The secondary treatment helps reduce organic pollutants before discharge, protecting downstream estuarine habitats.
Frequently asked questions
The plant is located at Calle José Mirón y Mosqueira in Medellín, Veracruz, Mexico, within 10 km of the Gulf of Mexico coast.
The plant serves approximately 1,825 residents in the Medellín area.
The plant provides secondary treatment and discharges treated effluent into the Papaloapan River basin, which flows into the Gulf of Mexico near the Alvarado Lagoon system.
The plant operates under Mexican standard NOM-001-SEMARNAT, which sets discharge limits for municipal wastewater. For small plants like this, secondary treatment is typically required to meet water quality standards.
For small agglomerations under 10,000 people, Mexican regulations generally require secondary treatment to reduce organic matter and suspended solids before discharge into receiving waters.
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