We were contracted to carry out the executive project for the new wastewater treatment plant in Fray Marcos, a job that covered the areas of hydraulics, architecture, roads and electricity, and was designed for biological treatment of activated sludge, with an extended aeration system. This process includes nutrient removal and final disinfection of the water by ultraviolet radiation. The treated effluent is discharged to the Santa Lucía River through an outfall. Sludge generated during the process is collected and thickened in a satellite tank before being transferred to drying beds.

The design of the treatment plant considered the treatment of domestic effluents from the city’s sewage system, as well as those from individual systems transported by barometric trucks. The main design parameters were:

• Average daily flow rate: 5 liters per second.
• Maximum instantaneous flow rate: 12 liters per second.
• Equivalent population: 2,000 inhabitants.

To develop the project, we used the BIM (Building Information Modeling) methodology. We modeled all the disciplines involved, such as civil infrastructure, roads, hydraulics, architecture and concrete and metal structures. This technology allowed us to coordinate the project, improve visualization with the client and generate the necessary technical documentation. In addition, we provided the client with an integrated model viewer to facilitate their understanding of the work.

This project allowed us to design an efficient and modern solution for the sanitation of the city, guaranteeing the care of the environment and the well-being of its inhabitants.