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Transcript of 1 New data to update the models: After the stakeholders workshop Third Management Board Meeting...
![Page 1: 1 New data to update the models: After the stakeholders workshop Third Management Board Meeting Gumpoldskirchen 18-19 May 2006.](https://reader038.fdocuments.net/reader038/viewer/2022102818/56649cfe5503460f949cf7e3/html5/thumbnails/1.jpg)
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New data to update the models:
After the stakeholders workshop
Third Management Board Meeting
Gumpoldskirchen18-19 May 2006
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INTRODUCTION
- 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
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Agriculture 7Environment 4
Research 5
ONAS CITET ANPE
FSTENIT INRST
Associations & Expert 2
DGRE DGBGTH
CRDA Ben Arous
UTAP
DGACTA
BIRH
DGGREE
INATINRGREF
Stakeholders Institutions
CRDA Zaghouan
APAL
Expert
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Programme
Presentations
ONASOPTIMA projectIRMCo objectives in the workshopMelian case study: RRM and WRM models
Round tables
03 round tables
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Round table 1 :State of the Water Ressources in Basin
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)
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Round table 2 :Diagnostics of the water ressources
- Present the topological model of the melian basin - Make a critical review of the current model outputs
Results
Demand (Mm3)MODEL REEL
Municipality 4.86 3 - 4Tourism 4.29 0Agriculture 15.26 35-40Industry 1.70 1 - 2TOTAL 26.12 45
1.- Water Demand
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2.- Topological Model
2. Topological Model Melian
Basin 1
Basin 2Bassin El Hma
El Hma dam
STEP
Tourisme
Domestic
Industrie
Canal Medjerda
Irrigation
Grounwater
Sea
Demand
Start
EndNœud de sortie
TreatementReservoir
? ?
??
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The new topological Model
M’chergua reservoir
Sea
Melian basin
Melah basin
Rmel basin
Hma basin
Hma reservoir
Irrigation
STEP
Domestic
Industry
Medjerda canal
GW
Lacs
GW-SONED El Gola-SONED
3 Demand node
9 start node 1 End node
1 Treatment node 2 reservoir node
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Round table 3: Alternative water management scenarios
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
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2.- Values assigned to a set of performances indicators
Indicators Model
Output Reality
Overall Supply/Demand Ratio = 98.4 % 110-130 % Reliability of Supply = 73.7 % 100 % Days with flooding 0 days 0 days Cost/Benefit ratio not defined
Round table 3: Alternative water management scenarios
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CONCLUSION
-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)
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THANK YOU FOR YOUR ATTENTION