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Investigation of potentially toxic heavy metals in different organic wastes used to fertilize market garden crops

Tella Marie, Doelsch Emmanuel, Letourmy Philippe, Chataing Sophie, Cuoq F., Bravin Matthieu, Saint Macary Hervé. 2013. Investigation of potentially toxic heavy metals in different organic wastes used to fertilize market garden crops. Waste Management, 33 (1) : pp. 184-192.

Journal article ; Article de revue à facteur d'impact
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Quartile : Q1, Sujet : ENVIRONMENTAL SCIENCES / Quartile : Q1, Sujet : ENGINEERING, ENVIRONMENTAL

Abstract : The benefits of using organic waste as fertilizer and soil amendment should be assessed together with the environmental impacts due to the possible presence of heavy metals (HMs). This study involved analysing major element and HM contents in raw and size-fractionated organic wastes (17 sewage sludges and composts) from developed and developing countries. The overall HM concentration pattern showed an asymmetric distribution due to the presence of some wastes with extremely high concentrations. HM concentrations were correlated with the size of cities or farms where the wastes had been produced, and HM were differentiated with respect to their origins (geogenic: Cr-Ni; anthropogenic agricultural and urban: Cu-Zn; anthropogenic urban: Cd-Pb). Size fractionation highlighted Cd, Cu, Zn and Pb accumulation in fine size fractions, while Cr and Ni were accumulated in the coarsest. HM associations with major elements revealed inorganic (Al, Fe, etc.) bearing phases for Cr and Ni, and sulfur or phosphorus species for Cd, Cu Pb and Zn. (Résumé d'auteur)

Mots-clés Agrovoc : Élément métallique, Métal lourd, Boue résiduaire, Compost, Amendement organique, Engrais, Recyclage des déchets, Déchet organique, Composition chimique, Fractionnement, Propriété physicochimique du sol, Évaluation de l'impact, Impact sur l'environnement, Zone tropicale, Zone tempérée

Mots-clés géographiques Agrovoc : Madagascar, France, Réunion, Sénégal

Classification Agris : F04 - Fertilizing
P33 - Soil chemistry and physics
P35 - Soil fertility
Q70 - Processing of agricultural wastes
T01 - Pollution

Champ stratégique Cirad : Axe 1 (2005-2013) - Intensification écologique

Auteurs et affiliations

Source : Cirad - Agritrop (https://agritrop.cirad.fr/567093/)

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