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Emploi d'amendement organique et de champignons endomycorhiziens pour la phytostabilisation de laitiers sidérurgiques

Abstract : Steel slags are major by-products (considered as waste) produced by the steel and iron industry. Particularly rich in metallic trace elements, these materials are massively stored in slagheaps and constitute as many potential nuisances for the environment and public health. Several studies [(Mendez et Maier, 2008), (Vamerali et al., 2010)] have shown the effectiveness of phytostabilization processes for rehabilitating sites contaminated by high levels of metals, both because of their sustainable and ecological aspects but also due to their low implementation costs. The SAFIR Industeel slagheap considered contains approximately 500 000 tons of slags spread over an area of about 4 ha. A previous study (Bourchardon et al., 2014) carried out on the same site has demonstrated that the use of "Composted Sewage Sludge" (CSS) as an organic amendment favors the installation of metallophytes herbaceous species able to naturally grow on this type of substrate. Here, have been evaluated: 1) the combined effects of CSS and inoculation of an AMF on vegetation in terms of biomass production as well as accumulation of metallic compounds in aerial parts and 2) the optimal amount of CSS in order to obtain the best rates of mycorhization (symbiosis between the plants and the AMF).
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  • HAL Id : emse-03149742, version 1


Mathieu Scattolin, Daniel Garcia, Olivier Faure, Fernando Pereira, Frédéric Paran. Emploi d'amendement organique et de champignons endomycorhiziens pour la phytostabilisation de laitiers sidérurgiques. 2èmes Rencontres Scientifiques: Réhabilitation et Valorisation des Sites et Sols pollués - 2nd Scientific Meeting: Rehabilitation of polluted Sites and Soils, RV2S/RSS 2018, Oct 2018, Saint-Etienne, France. pp.84 à 89. ⟨emse-03149742⟩



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