[ Effet des eaux usées de la ville de Settat sur la charge métallique des sols agricoles ]
Volume 17, Issue 2, August 2015, Pages 251–263
Doha BARRANI1 and Abdelhamid BOUZIDI2
1 Laboratoire de Sciences de l'Environnement et du Développement (SED), Faculté des Sciences et Techniques, Université Hassan 1er, BP 577 – Settat, Maroc
2 Laboratoire Sciences de l'Environnement et du Developpement, Faculté des Sciences et Technique, Université Hassan I, Settat, Maroc
Original language: French
Copyright © 2015 ISSR Journals. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
The present work contribute to the study of the impact of the use of wastewater in irrigation of agricultural soils. The main objective is to diagnose the state of metal pollution of soils. The obtained results from the physic-chemical analysis on samples selected along the wadi Boumoussa (natural drain wastewater from the city of Settat) emphasize that these soils are sandy loam with a slightly basic pH, the electrical conductivity parameter expressing the ionic charge, varies between 1100μS/cm 1500μS/cm which refer these soils in class 0 (unsalted ground) and the organics values are between 2% and 3.5%. These values classify our soil as organic matter moyennent provided. While their cation exchange capacity (CEC) is very high. The studied soils are rich in phosphorus (P2O5> 5) and nitrate (NO3-> 30ppm). Assessed values of exchangeable cations is; calcium (CaO <2991.1 ppm), magnesium (MgO <2995.1 ppm), and potassium (K2O> 500 ppm). The analysis of heavy metals showed remarkable concentrations of Pb (26.37 ppm) and Zn (22.37 ppm) with a high pollution index (PLI> 2).
Author Keywords: Morocco, Chaouia Ourdigha, Settat, sewage sludge, soil, heavy metals.
Volume 17, Issue 2, August 2015, Pages 251–263
Doha BARRANI1 and Abdelhamid BOUZIDI2
1 Laboratoire de Sciences de l'Environnement et du Développement (SED), Faculté des Sciences et Techniques, Université Hassan 1er, BP 577 – Settat, Maroc
2 Laboratoire Sciences de l'Environnement et du Developpement, Faculté des Sciences et Technique, Université Hassan I, Settat, Maroc
Original language: French
Copyright © 2015 ISSR Journals. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract
The present work contribute to the study of the impact of the use of wastewater in irrigation of agricultural soils. The main objective is to diagnose the state of metal pollution of soils. The obtained results from the physic-chemical analysis on samples selected along the wadi Boumoussa (natural drain wastewater from the city of Settat) emphasize that these soils are sandy loam with a slightly basic pH, the electrical conductivity parameter expressing the ionic charge, varies between 1100μS/cm 1500μS/cm which refer these soils in class 0 (unsalted ground) and the organics values are between 2% and 3.5%. These values classify our soil as organic matter moyennent provided. While their cation exchange capacity (CEC) is very high. The studied soils are rich in phosphorus (P2O5> 5) and nitrate (NO3-> 30ppm). Assessed values of exchangeable cations is; calcium (CaO <2991.1 ppm), magnesium (MgO <2995.1 ppm), and potassium (K2O> 500 ppm). The analysis of heavy metals showed remarkable concentrations of Pb (26.37 ppm) and Zn (22.37 ppm) with a high pollution index (PLI> 2).
Author Keywords: Morocco, Chaouia Ourdigha, Settat, sewage sludge, soil, heavy metals.
Abstract: (french)
Ce travail porte sur une étude de l'impact de l'utilisation des eaux usées dans l'irrigation des sols agricoles. L'objectif principal est de diagnostiquer l'état de pollution métallique de ces sols. Les résultats obtenus sur les échantillons sélectionnés le long de l'oued Boumoussa, (drain naturel des eaux usées de la ville de Settat) se rapportant aux éléments physico-chimiques suivis font ressortir que ces sols sont sablo limoneux avec un pH légèrement basique. La conductivité électrique, paramètre exprimant la charge ionique, varie entre 1100µS/cm à 1500µS/cm ce qui classe ces sols dans la classe 0 (sol non salé). Les valeurs des matières organiques se situent entre 2% et 3,5%. Ces valeurs classent nos sols dans comme étant moyennent pourvus en matière organique. Tandis que leur capacité d'échange cationique (CEC) est très élevée. Les sols étudiés sont riches en phosphore (P2O5> 5) et en nitrates (NO3- > 30ppm). Les valeurs évaluées des cations échangeables est ; le calcium (CaO< 2991,1 ppm), le magnésium (MgO<2995,1 ppm), et le potassium (K2O> 500 ppm). L'analyse des métaux lourds a révélé des concentrations remarquables en Pb (26,37ppm) et en Zn (22,37ppm) avec un indice de pollution élevée (PLI> 2).
Author Keywords: Maroc, Chaouia Ouardigha, eaux usées, Settat, sols agricoles, éléments traces métalliques.
How to Cite this Article
Doha BARRANI and Abdelhamid BOUZIDI, “Settat Sewage Sludge Effects on Metal Load In Agriculture Soils,” International Journal of Innovation and Scientific Research, vol. 17, no. 2, pp. 251–263, August 2015.
