AHP-GIS
Indice degli argomenti
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The objective of the Best Practice is to identify potential sites to reuse treated wastewater (TWW) for irrigation in the El Fahs region (Tunisia) after using an innovative water treatment technology.
AHP-GIS has been developed by the Centre de Recherches et des Technologies des eaux (CERTE) in the framework of the International project "Nature Based Solutions for Domestic Water Reuse in Mediterranean Countries" (NAWAMED).
An analytic hierarchy process (AHP) coupled with a geographic information system (GIS) is used as a decision support tool. 12 constraints and 5 factors were determined for the selection of sites. The combination of all constraints by the intersection operator resulted in a Boolean map in which the areas were coded. Finally, a sensitivity analysis is applied to check the reliability of the results, based on several potential scenarios, using a weighted linear combination (WLC). The results show that the total suitable area covers 4808.44 ha, which corresponds to 53% of the total study area.
PGIS, AHP, TWW, modeling, irrigation
Fields of application
1- Irrigation Field
2- Support to decision
Target
1- Addressing Water Scarcity by identifying new water resources and methods of utilization,
2- Unconventional Water Resource Mobilization: to explore the potential of unconventional water resources, such as treated wastewater, to address the growing water demand.
3- Innovative approach to evaluate to identify potential sites to reuse treated wastewater.
Preliminary knowledge required (if any)
-Access to the requested information
References/Online resources
Contacts
Hamadi Kallali
📧 Hamadi.Kallali@certe.rnrt.tn