Overview
Atotonilco wastewater treatment plant in San Miguel (Atotonilco), Zacatecas, Mexico, serves 4,564 people with secondary treatment and a designed capacity of 449.28 m³/day.
The Atotonilco wastewater treatment plant is located in San Miguel (Atotonilco), a locality in the municipality of Apozol, Zacatecas, Mexico. It serves a population of approximately 4,564 people, making it a small-scale municipal facility. The plant is situated in an inland region, away from coastal areas, and its operations are part of the local water management infrastructure. The plant provides secondary treatment, which is the standard biological treatment process for removing organic matter and suspended solids. With a designed capacity of 449.28 m³/day and a reported discharge volume of 432.00 m³/day, the facility operates at a high utilization rate. In Mexico, wastewater treatment plants are regulated under the National Water Law (Ley de Aguas Nacionales) and NOM-001-SEMARNAT-1996, which sets discharge limits for pollutants. The treated effluent is discharged into a local water body, contributing to the protection of the surrounding environment. The plant plays a key role in reducing pollution in the region, supporting downstream water quality and ecosystem health. Its location in Zacatecas places it within the Lerma-Santiago-Pacifico hydrological region, which ultimately drains into the Pacific Ocean.
Environmental context
The Atotonilco plant discharges treated wastewater into a local watercourse within the Lerma-Santiago-Pacifico hydrological region. This basin drains into the Rio Grande de Santiago, which flows westward to the Pacific Ocean. The region supports diverse aquatic life and is important for agricultural irrigation downstream. Proper treatment helps prevent eutrophication and protects water quality in this semi-arid area.
Frequently asked questions
The Atotonilco plant is located in San Miguel (Atotonilco), a locality in the municipality of Apozol, Zacatecas, Mexico. Its address is Calle Argentina, San Miguel (Atotonilco), Apozol, Zacatecas, 99780.
The plant serves a population of approximately 4,564 people, making it a small-scale municipal wastewater treatment facility.
The plant provides secondary treatment, which involves biological processes to remove organic matter and suspended solids from wastewater before discharge.
In Mexico, wastewater treatment plants must comply with NOM-001-SEMARNAT-1996, which sets maximum permissible limits for pollutants in treated discharges. The Atotonilco plant's secondary treatment helps meet these standards.
The plant has a designed capacity of 449.28 m³/day and a reported discharge volume of 432.00 m³/day, indicating high utilization of its treatment capacity.
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