Canal de Isabel II set to allocate €24 million to wastewater treatment in Guadarrama basin

Canal de Isabel II is to invest €23.9 million in the operation and maintenance of the 16 wastewater treatment plants (WWTP) in the Guadarrama basin, situated in the west of the Autonomous Community of Madrid

The governing Board was informed today of the proposal to tender out this contract, which has an initial duration of 4 years, with an option for a three-month extension. This proposal must now be approved by the Board of Directors of the publicly owned company. The contract will facilitate the management of the 16 WWTPs that treat the water of municipalities such as Majadahonda, Boadilla del Monte, Batres, Colmenarejo, Villanueva de la Cañada, Móstoles, Las Rozas, Navalcarnero, Serranillos del Valle, Sevilla La Nueva, Villaviciosa de Odón, Villanueva del Pardillo, Brunete and Villafranca del Castillo.

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Some of these facilities are equipped with cutting edge technologies, including the Arroyo Valenoso WWTP in Boadilla del Monte, which treats wastewater by means of a bioreactor with ultrafiltration membranes.

All 16 facilities have a treatment capacity to serve the needs of a population equivalent of almost 1 million and a number of them include tertiary treatment to enable the reclamation of treated water. In fact, the reclaimed water produced at these plants enabled 1.65 million cubic metres of drinking water to be saved last year.

The main producer of reclaimed water, which can be used for the irrigation of parks and gardens or for street cleansing, was the Boadilla WWTP, where 919,862 cubic metres of water was reclaimed, equivalent to the volume of three Torre Picasso skyscrapers. Canal also plans to implement biogas-fired micro-CHP generation at the Boadilla WWTP, which will indirectly help to reduce emissions and combat climate change. This is in line with the company’s commitment to energy efficiency and the development of initiatives for the production of clean energy by availing of processes which have synergies with global urban water cycle management.   

Energy efficiency

All of these initiatives form part of Line 4 of the Canal de Isabel II Strategic Plan 2018-2030, which seeks to foster environmental quality and energy efficiency. Within this strategic line, Canal has set itself the 2030 objective of being the first European water sector company to produce a quantity of energy equal to or greater than the energy it consumes. Moreover, it seeks to do so from renewable sources, such as hydropower, solar power and biogas.  

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