Inauguration of the Segovia WWTP extension, providing service to nearly 148,000 citizens

The Ministry of Agriculture, Food and the Environment (MAGRAMA, by its Spanish acronym), through the state-owned company Aguas de las Cuencas de España (known by its Spanish acronym, Acuaes) has commissioned a new Waste Water Treatment Plant (WWTP) in Segovia, executed as a Joint Venture by OHL and GS Inima Environment. The WWTP extension and improvement works will treat the wastewater generated by the town of Segovia, the nearby villages of La Lastrilla and San Cristóbal de Segovia, and the El Cerro and Hontoria industrial estates, enabling the effluents to meet European Union quality standards. 

The WWTP extension and remodeling works have entailed an investment of 21.6 million euros, financed by MAGRAMA, through the European Union Cohesion Fund and the Town Council of Segovia. 

The new wastewater treatment plant has been designed to treat an average flow of 41,280 m³/day, able to reach up to 4,400 m³/hour and will provide service to an equivalent population of 147,920.   

Activities carried out

The Segovia WWTP extension and remodeling works have included the following, amongst others: comprehensive remodeling of the pre-treatment area, replacement and improvement of electromechanical equipment and the installation of a deodorization system, in addition to the installation of new primary decantation and new rainwater decantation, able to operate, during the dry season, as an effluent treatment system, remodeling, increase in size and improvement of the biological reactor process, constructing a new secondary decantation, with extended and improved performance. Furthermore, it has covered the installation of a new line for sludge treatment, storage and evacuation, replacing the existing one, and construction of new associated process buildings and reurbanization of the entire plant. Furthermore, of interest is the fact that during execution of the works the plant has not stopped operating, meeting the spillage parameters in the Eresma River required by Confederación Hidrográfica del Duero. 

The WWTP inauguration event was attended, amongst other authorities, by the Deputy Representative of the Government in Segovia, Pilar Sanz; the General Manager of the State-owned company Acuaes, Aránzazu Vallejo; the Mayoress of Segovia, Clara Luquero; the Mayor of San Cristóbal de Segovia, Óscar Benito. OHL was represented, amongst others, by Rafael Martín de Nicolás, general manager of OHL Construcción, Spain area. 

Picture of the Waste Water Treatment Plant (WWTP) in Segovia.