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Agriculture 7

Stakeholders workshop was organised at the CNT, the 3rd of May 2006 with the IRMCo collaboration 18 26 institutions were present 29 stakeholders+11 from CNT 40 participants. DGRE. DGBGTH. DGACTA. DGGREE. ONAS. CITET. ANPE. ENIT. FST. BIRH. CRDA Ben Arous. UTAP. INRGREF.

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Agriculture 7

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  1. Stakeholders workshop was organised at the CNT, the 3rd of May 2006 with the IRMCo collaboration • 18 \ 26 institutions were present • 29 stakeholders+11 from CNT • 40 participants

  2. DGRE DGBGTH DGACTA DGGREE ONAS CITET ANPE ENIT FST BIRH CRDA Ben Arous UTAP INRGREF INAT StakeholdersInstitutions Agriculture 7 Environment 4 APAL CRDA Zaghouan Associations & Expert 2 Research 5 INRST Expert

  3. Presentations ONAS OPTIMA project IRMCo objectives in the workshop Melian case study: RRM and WRM models Round tables 03 round tables

  4. Discuss the issues questionnaires • RESULTS: Problem statement for melian Basin • - Water management in the basin is very complex because of the multitude of stakeholders involved in water issues • - The rainfall in the Melian basin is low (450mm) • - Water supply is very dependent on the external importations of water • Discharge of Untreated wastewater (from sabkhat Sijoumi) into the Melian basin is causing pollution into marine environment • Groundwater is overexploited (150%), this situation lead to deterioration of the groundwater quality (salinity)

  5. - Present the topological model of the melian basin - Make a critical review of the current model outputs Results 1.- Water Demand

  6. Demand EndNœud de sortie Start Treatement Reservoir 2. Topological Model Melian Bassin El Hma Basin 2 2.- Topological Model Basin 1 ? ? Canal Medjerda El Hma dam Irrigation ? Grounwater ? Tourisme Domestic Industrie STEP Sea

  7. 3 Demand node 1 End node 9 start node 1 Treatment node 2 reservoir node M’chergua reservoir Melian basin Medjerda canal Melah basin Rmel basin Hma reservoir El Gola-SONED GW-SONED Irrigation Hma basin Domestic GW Industry Lacs STEP Sea The new topological Model

  8. Compare the performance of baseline scenario • Results • 1.- water scenarios • - Reduce the water exploitation of the groundwater • Create of a new treatment plant in the area, to exploit • the treated water for irrigation • - Management of sabkhat sijoumi by ONAS • The groundwater quantity by artificial recharge coming • from surface water (15Mm3) that is not exploited now

  9. 2.- Values assigned to a set of performances indicators

  10. We constitute a steering committee with 7 stakeholders • INRGREF, CRDA, DGRE, UTAP, DG ACTA, ANPE • - Meeting every 3 months • - Give us the data missed and issues questionnaires • Work on economic evaluation, optimisation, water technology, water quality)

  11. THANK YOU FOR YOUR ATTENTION

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