2015 UN-Water Annual International Zaragoza Conference. Water and Sustainable Development: From Vision to Action. 15-17 January 2015

Technical visit: La Cartuja - Zaragoza's main waste water treatment plan

Date: 14 January 2015
Time: 09:00
Meeting Point: Etopía. Avda. Ciudad de Soria, 8. 50010 Zaragoza (opposite the AVE Train Station-Departures Gate/SALIDAS) Zaragoza, Spain

To register for the technical visits please contact Mónica Garcés

Technical visit: La Cartuja - Zaragoza's main waste water treatment plan.

Zaragoza’s main waste water treatment plan is located in La Cartuja. With a Capacity of 1,200,000 inhabitants, this plant has treated 92% of the city’s effluents since 1993.
In 1990, Zaragoza’s City Council selected Veolia by a public tender to design, build, finance and operate the plant (25 years BOT).  The challenges were to minimize the footprint and nuisance of the plant: The water is treated by compact indoor installations to minimise the visual, noise and odour pollutions. The process includes a lamellar primary & secondary sedimentation, and 9 m deep biological reactors.

The conventional sludge line (dewatering with centrifuges) is followed by fluidized bed incineration. The smoke is treated with an electro filter and two washing towers to remove particles and contaminating compounds. Since 2006, a 440 kW steam turbine recovers the heat, generating 3.588.300 kWh last year.

In 2011, the Zaragoza’s City Council extended the BOT to 2024 to also provide treatment for the combined sewer overflows and improve the energy efficiency, using a 220 kW hydraulic turbine and an Actiflo™ to treat the storm water.

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The vision

>> Rio+20
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The action

>> Capacity development
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Action on…

>> Water, Sanitation and Hygiene (WASH)
>> Water Resources Management
>> Water Quality
>> Risk management

14 January: Pre-Conference Side events and Technical Visits

>> Technical visit: La Cartuja
>> Technical visit: The Ebro River Basin Authority and its Automatic System for Hydrologic Information (SAIH)
>> Technical visit: Expo + Water Park
>> New sources: Wastewater reuse
>> Local level actions in decentralized water solidarity towards the achievement of the Sustainable Development Goals
>> Water Footprint Assessment
>> Technological advances and Water Policy
>> Cultivando Agua Boa Programme
>> CODIA and water and energy in LAC
>> The fulfillment of the human right to water and sanitation

15 January: Setting the scene and the context

>> Achieving sustainable water for all in LAC
>> Achieving water security for Asia and the Pacific
>> Ensuring implementation of the water-related SDGs in Europe
>> Setting the scene

16 January: Whose action?

>> Academia
>> Business
>> Civil society
>> Governments and local authorities
>> Media and Communicators

17 January: Integrating knowledge and the way forward

>> Multi-stakeholder dialogue on tools for implementation


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