American Journal of Engineering Research (AJER) 2017 American Journal of Engineering Research (AJER) e-ISSN: 2320-0847 p-ISSN : 2320-0936 Volume-6, Issue-3, pp-101-106 www.ajer.org Research Paper Open Access www.ajer.org Page 101 Physicochemical Study of Dayet Er-Romi Lake Water, Khemisset Region I. Bounif 1 ; H. Taouil 1, 2 ; S. Elanza 3 ; A. Amine 4 ; H. Hanafi 5 H. Houmani 1 ; M. Aboulouafa 1 ; S. Ibn Ahmed 1 1 Laboratory of Materials, Electrochemistry and Environment. Faculty of Sciences University Ibn Tofail Kénitra, Morocco. 2 Laboratory of Analytical Chemistry and Physical Chemistry of Materials. Hassan II University of Casablanca. 3 Laboratory of Organic Synthesis and Extraction Processes, Ibn Tofail University. 4 Laboratory of condensed matter and renewable energy. Faculty of Sciencesand Technology. Hassan II University. 5 Laboratory of Physico-Chemistry of Materials and Environment. University Abdelmalek Essaâdi, Faculty of Sciences, Morocco. ABSRACT: This work has for purpose to determine the quality of the raw water of Dayet Erromi Lake in khemisset region by achievement of the physico-chemical analysis of the four samples. We have studied the effect of Some Physico-chemical parameters which are mainly: the temperature, pH, electrical conductivity, turbidity, chlorides, sulphate, calcium, magnesium and nitrates. The analytical results show that pH values are close to neutral, while the values of chlorides greatly exceeding the value guide fixed by European standards and also do not conform to the standards defined by the World Health Organization (WHO). By cons, studied waters of our stations are not subject to a risk of pollution by other physicochemical parameters. Keywords: Lake Dayet Erromi, raw water, physical and chemical quality I. INTRODUCTION Throughout the world, the pressure on water resources and in particular on the groundwater resources is increasing, mainly because of the growing demand and the degradation of the water quality. Thus the demand for drinking water, irrigation, urban expansion and the industrial development are all factors that increase these pressures. The preservation of our hydraulic heritage and its sustainable management must be a major concern of our government. This management necessarily involves the implementation, at the national level, action programs against pollution of our aquatic ecosystems, whether marine or continental. Several previous studies have evaluated the physico-chemical and metallic quality of surface and deep water in the Talsint region of eastern Morocco [1-3]. Thus the lake ecosystem Dayet Er-Roumi is the only continental permanent natural lake at the Khemisset region; it is classified as a site of biological and ecological interest. As well in the previous work the evolution of the physico-chemical quality of the water in this region have been studied [4], in effect M.KHYRI and collaborators are interested in evaluating the physico chemical quality of Dayet Erromi Lake, and these authors have shown that Dayet Erromi lake has a strong mineralization [4]. A complete diagnosis of the current situation and rigorous monitoring of its evolution are needed to judge the physical and chemical quality of the water and its impact on the environment of the area: Dayet Erromi Lake. II. MATERIALS AND METHODS Study Area The site Dayet Er-Roumi is located within the territory of three rural communes: Ait Ouahi; AitIkkou and Ait Ouribel it situated 15 km from Khemisset (33 ° 45'N 06 ° 12 ') characterized by semi-arid climate with rainfall regime is Mediterranean (fig. 1). The lake is fed by groundwater and a stream from the Southeast. The Northeast, a platform corresponding to the outlet of Lake makes the junction between the lake and a permanent stream (Oued Rehhou). At the Lake north-eastern end opens a drainage channel from a marshy depression (daya of frogs) located 1-2 km north-east of the lake. Thus the lake has a climate of semi-arid, the maximum temperature is 38 ° C and the minimum temperature is 7 ° C.