Abstract
AbstractThe groundwater in the Timahdite–Almis Guigou area flows through fluvio-lacustrine and volcanic formations of Plio-Quaternary age and Liassic limestone. The groundwater resources in this area are used for drinking water and irrigation of agricultural plots. 18 groundwater samples were collected for this study. The physico-chemical and bacteriological parameters analysed, such as temperature, electrical conductivity, pH, dissolved oxygen, Na+, K+, Ca2+, Mg2+, Cl−, HCO3−, SO42−, NO2−, NO3−, faecal Coliforms, total Coliforms and faecal Streptococci, are used to characterise the quality of the groundwater and its suitability for drinking and for irrigation. The Piper and Gibbs diagrams and the saturation index were used to study the hydrogeochemical characteristics of groundwater. The quality of these was assessed on the basis of bacteriological quantification and water quality index (WQI) for drinking, and calculation of sodium percentage (Na%), sodium adsorption ratio (SAR) and permeability index (PI) for irrigation. The mineral saturation index in groundwater indicates that only carbonate minerals tend to precipitate, especially in the form of dolomite. On the other hand, the evaporative minerals are still undersaturated. The bacteriological quality and the water quality index (WQI) of this area are considered to be generally good to poor quality, with the exception of a few points, near the public dump of Almis Guigou, plateau of Lamrijate (Timahdite), Aït Hamza and Aït Ghanem, that show significant bacterial contamination and high concentrations of sodium, chlorides and nitrates. According to the calculation of the (Na%), the (SAR) and (PI), the groundwater samples are suitable for irrigation.
Publisher
Springer Science and Business Media LLC
Subject
Water Science and Technology
Reference63 articles.
1. Aghazadeh N, Mogaddam AA (2010) Assessment of groundwater quality and its suitability for dinking and agriculture uses in the Oshnavieh area, northwest of Iran. J Environ Prot 1:30–40. https://doi.org/10.4236/jep.2010.11005
2. Aït Slimane A (1989) Evolution structuro-sédimentaire paléogène de la partie Sud-Ouest du Moyen Atlas (Baqrit-Timahdite-Guigou, Bou Anguer, Ain Nokra, Oudiksou). Thèse 3° cycle, Fac. Sc. Marrakech, p 179
3. Akasbi A, Sadki S, Akhessas A, Fedan B (2001) Le ‹‹ niveau brun›› du Toarcien inférieur dans le Moyen Atlas septentrional: caractérisation, processus de mise en place et cadre géodynamique régional. Comun. Inst. Geol. e Mineiro, vol 88, pp 265–276
4. Amrani S, Hinaje S (2014a) Utilisation des analyses hydro-géochimiques et des analyses en composantes principales (A.C.P) dans l’explication du chimisme des eaux souterraines de la nappe plio-quaternaire entre Timahdite et Almis Guigou (Moyen Atlas, Maroc). ScienceLib Edit Mersenne 6:14
5. Amrani S, Hinaje S (2014b) Hydrodynamisme et minéralisation des eaux souterraines de la nappe phréatique plio-quaternaire du plateau Timahdite—Almis Guigou (Moyen Atlas, Maroc). Eur Sci J 10:174–189