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) : 184-192.

Quartile : Q1, Sujet : ENVIRONMENTAL SCIENCES / Quartile : Q1, Sujet : ENGINEERING, ENVIRONMENTAL

Résumé : 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.

Mots-clés Agrovoc : élément métallique, métal lourd, boue d'épuration, 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, La Réunion, Sénégal

Classification Agris : F04 - Fertilisation
P33 - Chimie et physique du sol
P35 - Fertilité du sol
Q70 - Traitement des déchets agricoles
P02 - Pollution

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

Auteurs et affiliations

• Tella Marie
• Doelsch Emmanuel, CIRAD-PERSYST-UPR Recyclage et risque (FRA) ORCID: 0000-0002-7478-4296
• Letourmy Philippe, CIRAD-PERSYST-UPR SCA (FRA) ORCID: 0000-0003-1040-0860
• Chataing Sophie
• Cuoq F., Université d'Aix-Marseille (FRA)
• Bravin Matthieu, CIRAD-PERSYST-UPR Recyclage et risque (REU) ORCID: 0000-0002-1436-7837
• Saint Macary Hervé, CIRAD-PERSYST-UPR Recyclage et risque (FRA)

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

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