7 research outputs found
Characterization of the Youssoufia-Morocco-MineFluoride-Contaminated Water and Their Detrimental Effects on Human Health
In Youssoufia, the second phosphate mining center of our country (Morocco), the drinking water needs of the rural population are of underground origins. Indeed, most of Youssoufia’s rural areas feed on traditional wells. The main purpose of this chapter is to evaluate the degree of contamination of mine water along the pumping canal by fluoride. Wells located near this channel were also analyzed to see the influence of the existence of black phosphate in this region on these wells. At the end of this analytical part, it is obvious to conclude that the dewatering waters of the black phosphate mines of Youssoufia, known as dewatering water along the canal, contain significant fluoride concentrations in the order of 3–4 mg/l on average and the waters of the wells located near this canal have fluoride concentrations higher than the standard recommended by the National Office of Drinking Water in Morocco and the World Health Organization which is 1.5 mg/l. Indeed, a number of residents residing in Youssoufia suffer from fluorosis
Intégration des TICE dans l’enseignement des Sciences de l’Ingénieur dans la filière Sciences Technologies Mécaniques aux lycées du Maroc : Réalité et Obstacles
Information and communication technology (ICT) in education has currently become an unavoidable pedagogical tool in any educational system of high standards. Its integration signifies a change in the learning processes and knowledge transmission and acquisition. In this article, we present the results of an exploratory research that we led with engineering science teachers of the Mechanical Science and Technology stream in high schools belonging to two regional Moroccan academies (Grand Casablanca, Settat and the Oriental). Our study focuses on the identification of the unknown current state of affairs and related to the integration of ICT in this subject of secondary education of the Mechanical Science and Technology stream in Moroccan high schools. The results have shown that 95% of the interrogated teachers displayed a big interest towards the usage of ICT in their teaching practices whilst only 22.5% of them already integrate it regularly in the classroom. This paradox is chiefly due to a shortage of equipment within the institution, the lack of software and applications suitable for E.S as well as teachers’ qualification and training. We also estimate that this research’s results could prove useful to other streams while the integration of ICT in the training of future teachers and in the practices of the classroom still remains problematic
Les Activités Expérimentales Dans L’enseignement Des Sciences Physiques: Cas Des Collèges Marocains
We focused in this article on two essential points: infrastructure dedicated to experimental activities in physics education in Moroccan colleges and experimental practice of teachers and the opinion of students on these activities. The results showed that school laboratories do not facilitate the learning and development of knowledge and know-how of the learners. The experiences of the course, according to teachers and students, are made as of experiences integrated into the course (performed by the teacher himself), the teachers refer to the lack of material, dangerous nature of certain experiences, inadequate premises suitable for practical work, poor management of laboratories that influence the rate of planned experiments and the experimental practices of teachers. The Information and Communication Technologies (ICT) would be a good way to supplement the experiences and not replace them. Teachers argue that the constraints and difficulties related to the integration of ICT are mainly due to an infrastructure deficit and support (training)
Color and organic matter removal from textile effluents by synthetic layered double hydroxides and natural clays
This study focused on the removal of dyes and the reduction of COD of textile effluents by natural clay and a synthesized layered double hydroxide (HDL). The raw clay used in this work was collected from the region of Safi in Morocco. Mg/Fe-LDH adsorbent was synthesized using co-precipitation method at room temperature. Samples were characterized by XRD, SEM. The different physical and chemical parameters of the textile discharges (Electrical conductivity, TSS, COD, BOD5, NO2 and Total phosphorus) were evaluated. Experimental results showed that the maximum color and COD removal depends on the adsorbent dose and solution pH