Papers by Fayçal KHELFAOUI
Synthese, 2016
The region of Oued Righ is considered as a poor region in terms of precipitation, which it receiv... more The region of Oued Righ is considered as a poor region in terms of precipitation, which it receives less than 150 mm / year. The intensive use of groundwater has led to many problems of wastewater discharges and an excess of irrigation water, which makes an adverse impact on the environment and the rise of the water table. Applying the WEAP software "water assessment and planning", this paper aims to develop a decision support system (DSS) to model the water resources and their uses, assessing the balance-equilibrium resources needs and analyze the future situation of the water according to different scenarios. It is observed that water use is excessive which reflected by an unmet demand and significant discharges into the canal. Otherwise, comparison between the scenarios elaborated shows a remarkable reduction in water demand and return flows to the river channel Righ. The application has been developed under Arcgis that provides an easy access to the information and off...
Gerer efficacement et equitablement les ressources en eau est l'un des defis les plus importa... more Gerer efficacement et equitablement les ressources en eau est l'un des defis les plus importants auxquels le bassin du Saf-Saf doit faire face, surtout avec les enjeux lies a la gestion du patrimoine hydrique qui ne cessent de croitre en importance sous le double effet de la croissance demographique et de l'augmentation des besoins par habitant. Ainsi, l'eau est menacee par sa rarete, le gaspillage, la pollution et la grande sollicitation des secteurs agricole et industriel. Occupant la partie centrale (...)
The region of Oued Righ is considered as a poor region in terms of precipitation, which it receiv... more The region of Oued Righ is considered as a poor region in terms of precipitation, which it receives less than 150 mm / year. The intensive use of groundwater has led to many problems of wastewater discharges and an excess of irrigation water, which makes an adverse impact on the environment and the rise of the water table. Applying the WEAP software "water assessment and planning", this paper aims to develop a decision support system (DSS) to model the water resources and their uses, assessing the balance-equilibrium resources needs and analyze the future situation of the water according to different scenarios. It is observed that water use is excessive which reflected by an unmet demand and significant discharges into the canal. Otherwise, comparison between the scenarios elaborated shows a remarkable reduction in water demand and return flows to the river channel Righ. The application has been developed under Arcgis that provides an easy access to the information and of...
Civil and Environmental Engineering Reports
The Oued Souf free aquifer located in the South East of Algeria represents the main water resourc... more The Oued Souf free aquifer located in the South East of Algeria represents the main water resource used mostly for urban and agricultural activities. The intensive use of chemical fertilizers has led to serious environmental problems such as contamination of the free aquifer in the region. Thus, aquifer vulnerability has been assessed using several different methods (DRASTIC, GOD, and the Susceptibility Index ‘SI’) based on a geographic information system (GIS). For each method, two vulnerability maps have been developed in the years 2002 and 2012. These maps show that the study area is more exposed to urban, and especially agricultural, pollution. Two classes of vulnerability (moderate and high) have been identified by both DRASTIC and GOD methods. A combined analysis reveals that the moderate class showing 48% (for the GOD method), and the high class showing 57% (for the DRASTIC method) are the most dominant. However, the Susceptibility Index method (SI) revealed that the vulnerab...
Desalination and Water Treatment, 2014
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Papers by Fayçal KHELFAOUI