006b NCWRM 2011 Morell_Spain

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Regional Conference on Advancing Non Conventional Water Resources Management in the Mediterranean, 14-15 September 2011, Athens, Greece

Regional Conference on Advancing Non Conventional Water Resources Management in the Mediterranean, 14-15 September 2011, Athens, Greece

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  • 1. Session 6. Learning from Experiences: Best Practices and Case StudiesIgnacio MORELLUniversitat Jaume IResearch Institute for Water and PesticidesCastellón, SPAIN September 15th, 2011 Athens, Greece
  • 2. As a consequence of the report Methodological basis for Water Neutrality Projects (2009)We proposed eight offset mechanisms to compensate the water use ina Coca-Cola plant (Valencia, Spain) One of these mechanisms was To mitigate seawater intrusion and to partially recover the water quality in some coastal aquifer
  • 3. Program Start date September 1st 2011 Phase I Program End Date September 1st 2012 Budget $143.000 (98.000 euros) Granted by Coca- Cola Foundation (Atlanta, USA) PartnersUniversity Jaume I, Castellón, Valencia Community, Spain (Coordinator)Spanish Geological SurveyJúcar Basin Organism (Ministry of Environment, Central Government)Department of Environment and Water (Ministry of Environment, Regional Government)Coca-Cola Spain
  • 4. The main objective is to establish a methodology to conducta pilot project for artificial recharge with regenerated waterin order:• to combat seawater intrusion• to collaborate for the remediation of the aquifer
  • 5. Spain Madrid Valencia Valencia Spain Granada Community Map of Europe Map of SpainValencia is an autonomous community of Spain, located in the east of theIberian Peninsula, along the Mediterranean Sea, which comprises theprovinces of Alicante, Castellón and Valencia.It has a total area of around 24,000 km2 and more than 5,100,000 inhabitantsIn the coastal strip has an intense agricultural activity, especially thecultivation of citrus, and also settles the majority of the population andindustrial and touristical activity
  • 6. Galicia Norte II Norte III C.I. Hydrological Basin of Costa Pais Norte I Vasco C.I. River Júcar Cataluña Duero Ebro Barcelona Madrid Tajo Valencia Hydrological basin of the river Júcar Guadiana Júcar Seven exploitation systems Tinto, Guadalquivir Segura Odiel y Granada Piedras Cenia - Maestrazgo Mijares – Turia Plana de Castellón Castellón de la Plana Palencia –The majority of the territory of Los Vallesthe Valencia Community belong Júcarto the hydrological basin of the Valenciariver Júcar Júcar Serpis Marina Alta Marina Vinalopó - Baja Alacantí Alicante
  • 7. About half of the water demand is satisfied bygroundwater that is extracted from coastal aquifers,which has suffered in recent decades, serious problemsof overexplotation and the increasing salinization ofgroundwater as a result of seawater intrusion and othermechanisms
  • 8. The reuse of urban waste water is, from a few years ago, acommon practice to alleviate the shortage of irrigation water.The current degree of reuse is:• 53% in Alicante• 32% in Valencia• 5% in CastellónThe remaining wastewater is discharged into streams and, mostly,to the sea through submarine outfalls.
  • 9. Overexploitation Agua dulce Freshwater Upconing Seawater Agua salada INTERFASESeawater intrusion is the movement of salinewater into freshwater aquifers. Most often, it iscaused by groundwater pumping from coastalwells
  • 10. Cenia - Maestrazgo Mijares – Turia Oropesa - Plana de Castellón Vinaroz Castellón de la Plana Palencia – Los Valles CastellonJúcar Valencia Valencia - Work Sagunto Júcar areas Gandía - Denia Serpis Marina Alta Marina Vinalopó - Baja Alacantí Alicante Alicante
  • 11. Artificial recharge is the planned, human activity ofaugmenting the amount of groundwater available throughworks designed to increase the natural replenishment ofthe aquifers, resulting in a corresponding increase in theamount of groundwater available for abstraction Pumping well Freshwater Saline water Sea Pumping well Recharge well Freshwater Saline Sea water
  • 12. Regenerated water isformer wastewater that has been treated toremove solids and certain impuritiesand then used in sustainable landscapingirrigation or to recharge groundwater aquifers
  • 13. Primary or Tertiary or advanced secondary tertiary treatment treatment Treated or Regenerated Wastewater depurated water water To be returned to To be reused inRaw water, to environment or to artificial recharge orbe depurated be used for to be use in irrigation irrigation if high vulnerability exists
  • 14. • Is one of the overarching ideas of the regional government for water management• It is a relevant issue in the Hydrologic Plan of Spanish government• It is a suggestive scientific and technological challenge• From the ‘Neutrality Water’ point of view, is a fair offset mechanism
  • 15. There are significant health restrictionsUrban wastewater, generally have• high salinity• high concentrations of some harmful ions (sodium, ammonium, chloride,phosphate, boron ..)• organic matter• microorganisms• and so-called Emerging Chemicals Contaminants, which are hundreds ofcompounds in good part related to pharmaceuticals and personal care(Protective, Care and Pharmaceutical Products), pesticides, drugs, foodadditives and chemicals used in many different types of industry.
  • 16. Some advanced tertiary treatment could be needed •Nitrification – denitrification •Desalinization (ultrafiltration, reverse osmosis) •Desinfection •Removing some PPCP,sThe extension of the treatment depends on the groundwater quality in thearea where the recharge will be done
  • 17. There are two extreme posibilities If the objective is only stablish a hydraulic Hydrodynamic barrier where very saline water exists, then, approach conventional tertiary treatment and water- soil-aquifer interaction is needed If the recharge also pursue increasing theHydrogeochemical approach water resources, then, exhaustive (and expensive) treatments are required
  • 18. Our idea is work in the hydrodynamic approach, but also apply efforts to investigate the fate of PPCP,s. If more intensive treatment is required, the economical factor could be critical
  • 19. The Water Recovery Project is structured in three phases well defined Phase III Operating phase Phase II 2 years Pilot experiencePhase I Theoretical approach 1 year
  • 20. • State of the art• Identify targets along the Valencia coastal areas• Selection of pilot area• Detailed geological and hydrogeological studies, including geophysical prospection and piezometers building• Design of recharge systems• Monitoring plan• Administrative licenses
  • 21. • Recharge systems building• Hydrodynamic control• Hydrogeochemical monitoring• Mathematical simulation model• Operation and maintenance guide
  • 22. • Management• Maintenance• Monitoring
  • 23. I hope to show you next year the results of the achievements obtained Thank you for your attention morell@camn.uji.es