QUALITY OF RAPESEED OIL AFTER DIFFERENT APPLICATIONS (AMENDMENTS) OF SEWAGE SLUDGE IN SOILS

Autor: Najla Lassoued, Essaïd Bilal
Přispěvatelé: Institut National Agronomique de Tunisie (INAT), Institut National de Recherche en Génie Rural Eaux et Forêts (INRGREF), Ecole Nationale du Génie Rural, des Eaux et des Forêts (ENGREF)-Institution de la Recherche et de l'Enseignement Supérieur Agricoles [Tunis] (IRESA), Département Procédés pour l'Environnement et Géoressources (PEG-ENSMSE), Centre Sciences des Processus Industriels et Naturels (SPIN-ENSMSE), École des Mines de Saint-Étienne (Mines Saint-Étienne MSE), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT)-École des Mines de Saint-Étienne (Mines Saint-Étienne MSE), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT), Environnement, Ville, Société (EVS), École normale supérieure de Lyon (ENS de Lyon)-École des Mines de Saint-Étienne (Mines Saint-Étienne MSE), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT)-Université Lumière - Lyon 2 (UL2)-Université Jean Moulin - Lyon 3 (UJML), Université de Lyon-Université de Lyon-Institut National des Sciences Appliquées de Lyon (INSA Lyon), Université de Lyon-Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Université Jean Monnet - Saint-Étienne (UJM)-École Nationale des Travaux Publics de l'État (ENTPE)-École nationale supérieure d'architecture de Lyon (ENSAL)-Centre National de la Recherche Scientifique (CNRS), National Agronomic Institute of Tunisia, National Institute for Rural Engineering’ research, Water and Forestry, Environnement Ville Société (EVS), Institut National des Sciences Appliquées de Lyon (INSA Lyon), Institut National des Sciences Appliquées (INSA)-Université de Lyon-Institut National des Sciences Appliquées (INSA)-Université de Lyon-Centre National de la Recherche Scientifique (CNRS)-École nationale supérieure d'architecture de Lyon (ENSAL)-École des Mines de Saint-Étienne (Mines Saint-Étienne MSE), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT)-École Nationale des Travaux Publics de l'État (ENTPE)-Université Jean Monnet [Saint-Étienne] (UJM)-Université Jean Moulin - Lyon 3 (UJML), Université de Lyon-Université Lumière - Lyon 2 (UL2)-École normale supérieure - Lyon (ENS Lyon)
Rok vydání: 2020
Předmět:
Zdroj: Carpathian Journal of Earth and Environmental Sciences
Carpathian Journal of Earth and Environmental Sciences, 2020, 15 (2), pp.443 à 452. ⟨10.26471/cjees/2020/015/143⟩
Carpathian Journal of Earth and Environmental Sciences, North University Center of Baia Mare, Romania, 2020, 15 (2), pp.443 à 452. ⟨10.26471/cjees/2020/015/143⟩
ISSN: 1844-489X
1842-4090
DOI: 10.26471/cjees/2020/015/143
Popis: International audience; Application of sewage sludge rich in organic matter and nutrients such as nitrogen, phosphorus and potassium tend to improve crop yields. Nevertheless, this use is limited because of their heavy metal content. The objective of this work is to study the effect of sewage sludge on the accumulation of metallic trace elements in seeds and rapeseed oil. For this purpose, two different types of sludge by their metal composition were tested. Compared to the control, the supply of industrial sludge increases the metallic load of seeds and rapeseed oil. This increase is noted with the highest doses 50 and 100 t/ha. The same trend was observed during the two years of application. This effect is due to the richness of these slurries in chrome, cadmium and lead. This modification of the metal composition was accompanied by the decrease in the oil content. Analysis of the fatty acid composition of total lipids shows an increase in the percentage of oleic acid at the expense of linoleic and linolenic acids. On the other hand, the increase of 18: 1 at the expense of linoleic and linolenic acids may be the result of metal-induced alteration. For urban sludge, we noticed a variation in Cr, Co, Cu, Ni and Zn contents in the seeds depending on the doses. However, for Cd and Pb no variation was recorded. An increase in metal trace element levels was well reported at the seed level during the second amendment. We also detected a decrease in oil content with the contribution of industrial sludge. The composition of the total lipids in fatty acids shows an increase in the percentage of oleic acid (C18: 1) at the expense of linoleic (C18: 2) and linolenic (C18: 3) acids under the effect of heavy metals brought by the industrial sludge while no difference is recorded with urban sludge regardless of the dose. No significant differences in heavy metals were observed with the addition of the different doses of urban sludge even after two years of application. Urban sludge has no effect on oil content or fatty acid composition. However, we detected increases in most heavy metals, especially for high doses of industrial sewage sludge.
Databáze: OpenAIRE
Externí odkaz: