Lassaad Ghrieb

Université 8 mai 1945 - Guelma · Department of Biology

The North-Western Sahara Aquifer System (NWSAS) is a complex multi-layered aquifer system with extraordinary continental groundwater reserves. This largest aquifer in the world straddles three countries: Algeria, Libya, and Tunisia. It contains more than 50,000 billion cubic meters of water; of which, 70% is in Algerian territory in the southeast o...

The semi-arid plain of Tebessa is located in the far northeastern Algeria. Its geology is characterized by Maestrichtian, Turonian and Eocene limestones which border the plain of North as the South. The alluvial formations composed of plio-quaternary sediments respond to all of the plains. The water quality in this region is impacted by the heterog...

In order to characterize the physicochemical quality of groundwater, and to examine the behavior of factors influencing water chemism in the Tebessa Plain, which is part of a semi-arid region located in the northeast of Algeria, physicochemical analyses were carried out on 32 water samples from the Mio-Plio quaternary water table. In the east of th...

The Guelma sub-basin, an integral part of the Middle Seybouse basin, covers a surface area of 818 km2, subject to subhumid climate. The main surface water reservoir is the Bouhamdane dam with a regulated volume of 55 hm3. The main underground reservoirs are found in the aquifer systems of the Guelma plain, the Bouchegouf plain, the H’lia water tabl...

The mine is situated in the East Algerian near the frontiers of Tunisia. The exploitation of iron is stopped until 1967.The water samples were collected from groundwater and surface water. Physicochemical parameters were measured during fieldwork. Water samples were analyzed for major ions and metallic trace element. We noted two aquifers, the firs...

The treatment plant wastewater from the city of Guelma is made by the medium load activated sludge. Physico-chemical analyzes of treated wastewater were performed on the following parameters: temperature (T ° C), potential hydrogen (pH), redox potential (RP), conductivity (EC), total suspended solids (TSS), biochemical oxygen demand (BOD5), chemica...

The studied area contains several superficial or deep water tables, which constitute the main sources of groundwater. The complexity of the exchange between groundwater and superficial water, as well as the casting of urban and industrial wastes remain unclear and require the application of isotopic techniques. Hence, a campaign involving 48 sample...

Annaba is famous as an agricultural region. The main crops are water melon and tomatoes. These crops grow in the summer, thus need intensive irrigation that requires an overexploitation of water, which leads to an imbalance of freshwater–saltwater interface. To explain the marine intrusion and its extension, we examined the information given by geo...

Les travaux portant sur la connaissance et le fonctionnement des aquifères karstiques sont limités et les dernières recherches effectuées sur la grotte de Bouakkous sont très anciennes. Cette situation empêche de pousser l'étude plus loin. Pour réaliser notre travail, nous nous sommes intéressés à la morphologie externe de la grotte. Le constat réa...

The mine is situating in the East Algerian near the frontiers with the Tunisian country. The exploitation of iron is stopped until 1967, now we interesting to the impact of the mine on the groundwater. This study evaluates potential groundwater contamination with toxic metals in around an abandoned iron mine in Algeria. We noted two aquifers, the...