Summary
Technical report
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Extract
Alteration of the aquifer water in hyperarid climate, by wastewater: cases of groundwater from Ouargla (northern Sahara, Algeria).
INTRODUCTION
The pollution affects as well the industrialized countries as those in the process of development. The problem is particularly serious for the countries whose climate is arid. Because of a pronounced hydrous deficit, the concentration of the pollutants in water remains high whereas their capacity of recycling is very low. In the case of the basin of Ouargla, the pollution generated by the discharge of wastewater has reached an alarming level due to the diversity of pollutants and the large quantity of wastewater (40906 [m.sup.3] [day.sup.-1] for the year 2005) (11). The surface aquifer, is exploited by wells for agricultural and domestic purposes, crossed by a collecting in the open air canal, pollution deteriorates quality and limit its uses. Thus we make state of the contamination of the surface aquifer water by the anarchistic urban rejections. The main factor influence this situation is topography: The total height is...See the full content of this document
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