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Impact sur les sols des dioxines de MIOM utilisés en technique routière

Abstract : Municipal Solid Waste Incineration Bottom Ash (MSWIBA) has been used, in France, in road construction for more than ten years. This practice regulated by the French authority induces episodically various discussion concerning particularly the content of PolyChlorinated Dibenzo-p-Dioxins and PolyChlorinated DibenzoFurans PCDD/F (commonly named dioxins) in this materials and their release through the environment. In order to study the potential transfer of dioxins towards the underlying soil, the collection of the MSWIBA samples used in different roadways manufactured in different periods has been performed. At the same time, percolated water and underlying soils have been investigated. Investigations have shown that the relationship is established between the age of the road conception and the dioxins content in the MSWIBA used. The grain size distribution by laser diffraction, the fixation of the dioxins by the geotextile underlying the MSWIBA layer and the filtration of the percolation water of the MSWIBA showed that dioxins transfer is performed through the particles forms having a minimum size of 0,45µm. In addition, the nature of the underlying soil seems to take an important part in the transfer or immobilization of dioxins.
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Submitted on : Thursday, May 6, 2021 - 10:16:49 PM
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Rabia Badreddine, Bernard Bartet, Guillaume Pepin, D. Francois. Impact sur les sols des dioxines de MIOM utilisés en technique routière. Environnement, Ingénierie & Développement, 2003, N°29 - 1er Trimestre 2003, pp.16-21. ⟨10.4267/dechets-sciences-techniques.2222⟩. ⟨ineris-00961874v2⟩



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