Alcantarilha DWTP (Portugal)

On April 15, 2021, the Portuguese Minister of Environment and Energy Transition, João Pedro Matos Fernandes, inaugurated the extension to the Alcantarilha Drinking Water Treatment Plant (DWTP) in the Algarve region of Portugal. The extension work was carried out by ACCIONA, who built two new flotation lines at the DWTP, each with the capacity to treat 600 l/s. These improvements have brought the total treatment capacity of the plant to 3 m3/s. The project had a budget of €4.6 million and doubles the plant’s capacity to produce water fit for human consumption.

The work carried out has upgraded the facility to increase water supply in the area, thus guaranteeing supply to the entire region in times of greater water scarcity. This increase in supply capacity also responds to the specific properties of the region’s raw water and reinforces the characteristics of the new treatment system that supplies the entire perimeter of the Algarve.

The contract for the construction of the Alcantarilha DWTP was awarded to ACCIONA by Aguas do Algarve in 1999 and represented the company’s first project in Portugal. The plant is located in the town of Silves and has a capacity of 259,200 m3/d to serve a population of 1,050,000.

General background to the project

The Alcantarilha DWTP in Portugal was built in 1999 by a consortium of companies that included Pridesa (later acquired
by ACCIONA). Originally built for extraction at the Funcho reservoir, since 2012 the DWTP has been fed by raw water from the Odelouca reservoir and groundwater.

Published in: #83 FuturENVIRO September – October 2021