ETUDE DES EAUX SOUTERRAINES DE LA PLAINE D’HENAYA (BASSIN DE LA TAFNA - NW ALGERIEN)
Journal Title: Larhyss Journal - Year 2014, Vol 18, Issue 18
Abstract
The plain of Henaya is located to the north of Tlemcen city in Tafna basin. This plain is characterized by a semi-arid climate and intensive farming activities. The high demand in water for agricultural purposes has resulted in an overexploitation of this resource as well as the use of non-conventional waters for irrigation. Thus, in addition to intensive uses of agricultural inputs the groundwater is exposed to risks of pollution. The physico-chemical characterization of waters of various supply points analyzed in the plain has shown two types of facies with high mineralization. A bicarbonated facies which would probably comes from the conglomerates represents 75% of the analyzed samples. The second one is a chlorinated facies which is likely due to the contact with the saline helvétien marls or to the infiltration of nonconventional waters used for the irrigation. The analyses have also revealed levels of nitrates exceeding the water quality standards which make these waters improper to human consummation. The former are recognized to be indicators of diffuse pollutions from an agricultural origin in the area. It was also noticed that the alkalinity of all analyzed water points is greater than 200 mg / l of CaCO3 hence largely exceeding the standards of the irrigation water quality. As a result, water is encrusting causing high risks of clogging. It also appears that the ground waters for irrigation are classified C3 - S1 in the Riverside diagram with a characteristic that make them suitable for crops with a good tolerance to salt.
Authors and Affiliations
BEMMOUSSAT A. | Département d'hydraulique, Faculté de Technologie, Université de Tlemcen, Algérie, Laboratoire 60 : Valorisation des ressources en eau (Université de Tlemcen), ADJIM M. | Département d'hydraulique, Faculté de Technologie, Université de Tlemcen, Algérie, Laboratoire 60 : Valorisation des ressources en eau (Université de Tlemcen), BENSAOULA F. | Département d'hydraulique, Faculté de Technologie, Université de Tlemcen, Algérie, Laboratoire 25: Promotion des Ressources Hydriques, Pédologiques et minière (Université de Tlemcen)
Keywords
Related Articles
- EP ID EP15077
- DOI -
- Views 388
- Downloads 14
CARACTERISATION DE LA POLLUTION DES EAUX RESIDUAIRES DE LA ZONE INDUSTRIELLE D’EL-HADJAR, ANNABA
L’objectif de cette étude est l’évaluation de la charge polluante des eaux résiduaires de la zone industrielle d’El-Hadjar-Annaba. Cette pollution est générée par les effluents domestiques ajoutés à ceux...
PHOTOCHEMICAL TREATMENT OF PHYTOSANITARY EFFLUENTS FROM THE SPRAYERS RINSE: CASE OF SIMAZINE
The degradation of simazine in the process of photolysis has been studied in aqueous solution. The study of the photolysis concerned three aspects namely the direct photolysis, photolysis catalyzed first using TiO2 and...
CARACTERISATIONS PHYSIQUE ET HYDRIQUE DES SUBSTRATS DE CULTURE DES PLANTS FORESTIERS EN CONTENEURS
The high quality of containers production plants will affect the establishment, the physiology and the growth of plants, and will ensure a better success in reforestation sites. The development of good plants is largel...
EFFET DE SELS METALLIQUES SUR LA CHLORATION DE SUBSTANCES HUMIQUES EN EAU DISTILLEE
L'objectif de notre étude est d'apprécier l'influence de la présence de sels de feet de manganèse sur la réaction de chloration de substances humiques en eadistillée. Différents paramètres réactionnels (taux et...
CARACTERISATION PHYSICO-CHIMIQUE DU LIXIVIAT D'UNE DECHARGE DE L'AFRIQUE DE L'OUEST: CAS DE LA DECHARGE D'AKOUEDO (ABIDJAN-CÔTE D'IVOIRE)
Urban solid wastes from the city of Abidjan (Côte d'Ivoire) contain more 60 % of waste household. They have been stockpiled in Akouedo landfill. This landfill devoided of collect and treatment system for leachates. T...