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H. Ech-chafay ¹, M. Najy ¹, I. Kherrati ¹, N. Bentoutou ¹, T. Hachi ¹, O. El Akkaoui ¹, K. El Kharrim ¹, D. Belghyti ¹

Affiliations
1 Laboratory of Biotechnology, Environment and Quality, IBN TOFAIL University, Faculty of Sciences, BP: 133, 14000 Kenitra, MA

Abstract

Objectives: To evaluate the physical and chemical quality of groundwater in the medium Moulouya, to identify the sources of pollution of the OuedMoulouya waters and to detect the corrélation between the physico-chemical contents. Methods/Analysis: Some physicochemical parameters change during transport and storage of samples of the sampling site (Ground) to the laboratory; therefore it is always better to make on-site measurements. The measurements of all physical and chemical parameters are performed within 48 hours after the sampling, with the standard methods usually adopted by this type of analysis. In this work, we applied the statistical methods and in particular, the Principal Component Analysis (PCA) on the XLSTAT software. Findings: The analysis of results show that the water of stations are BICARBONATED with CALCICUM and magnesium and they also show that in the stations, where the wastewater are discharged from the cities of Missour and OUTAT EL HAJ, there is an increase in the levels of Biochemical Oxygen Demand (BOD5), Orthophosphate, chlorides, Total Suspended Solids (TSS), Chemical Oxygen Demand (COD), Organic Matter (MO), and a decrease in the dissolved oxygen levels. Analyses of nitrates and orthophosphates of the water give very low values. These waters are fairly loaded with organic matter, especially near the urban discharges from the cities of Missour and OUTAT EL HAJ (BOD5 = 27.2 mg/1, OM = 47.09 mg/l, O2 = 4.8 mg O2/l) in dissolved salts (chloride, sulphate). The temperature (T = 20.9 °C) is related to the arid local climate. The values of certain parameters such as temperature, the potential of hydrogen, conductivity, alkalis, sulphates and chlorides generally testify that the waters of the OUED are of good quality according to Moroccan standards. Furthermore, the pollution degree differs from one site to another depending on the distance and the remoteness of the source of pollution. Application: The protection of the receiving environment, installation and dimensioning of a STEP at the level of the Missouri city and upgrading and renewal of the STEP of OUTAT EL HAJ.

Keywords

Morocco, Physical Chemistry, Pollution, Outat El Haj, Oued Moulouya, Water Quality

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N. Bentoutou ¹, K. Momayiz ², M. Najy ¹, D. Belghyti ¹, A. El Yahyaoui ³, G. Acil ³, H. Ech-Chafay ¹, A. Chaouch ¹

Affiliations
1 Department of Chemistry, Faculty of Science, Laboratory of Agrophysiology, Biotechnology, Environment and Quality, University Ibn Tofail P.B : 133, 14000 Kenitra-Morocco
2 Hassan Premier University, FST Settat, Morocco
3 National Center of Energy, Science and Nuclear Techniques, B.P.1382 R. P. 10001- Rabat, Morocco

Abstract

Objectives: To evaluate the physic-chemical quality status of the groundwater of SIDI TAIBI in Morocco and to identify the sources of the pollution. Methods/Analysis: The study covered 21 observation sites while the quality parameters selected and analyzed are physic-chemical parameters such as temperature, electrical conductivity and hydrogen potential. These were measured in situ using portable probes. The analysis of the major elements (cations and anions) was carried out by ion chromatography and bicarbonates by titration in the laboratories of the National Energy Center for Nuclear Science and Technology in Rabat-Morocco. Findings: The results obtained show that most of the physicochemical parameters involved in determining the quality of these waters comply with the standards of Morocco and those of the World Health Organization. However, we obtained non-conformance values for ammonium analysis, nitrates and the hydrotimetictitle. These parameters can be considered as indicators of the degree of pollution of this groundwater originating from the domestic and agricultural activities of the population of the region. Novelty/ Improvement: In the light of these results, as well as those described above, we advocate continuous monitoring of the parameters studied for wells with abnormal values, until the competent authorities connect the villages Region of SIDI TAIBI to the drinking water network and the sewerage network. Also, a campaign to sensitize the population on the basic means and techniques of treatment of water intended for human consumption for the protection the health human.

Keywords

Groundwater, Hydrochemistry, Irrigation, Quality, SIDI TAIBI

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