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Modélisation géochimique du comportement à la lixiviation des mâchefers d'incinération de déchets non dangereux

Abstract : Mineral trace elements (MTE) constitute an environmental restriction on the recycling of municipal solid waste incineration-bottom ash (MSWI-BA). The study of the speciation of MTE and the factors that control their release allows to predict their behavior under different environmental conditions and, consequently, suggest different actions to expand the management of MSWI-BA. A geochemical modeling led to a better understanding of the speciation of MTE. In this study, target elements were barium, copper, lead, nickel and zinc and the factors that control their release were identified. The results show that the leaching of metals as a function of pH mainly depends on the mineralogical phases. On the other hand, the organic matter has an influence in the leaching of MTE (for Ni, Cu and Pb notably); organic matter presents adsorbent or complexation properties.
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https://hal.archives-ouvertes.fr/hal-03290823
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Submitted on : Thursday, November 18, 2021 - 4:51:54 PM
Last modification on : Monday, March 28, 2022 - 8:28:04 AM

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Ola Hammoud, Denise Blanc, Maria Lupsea-Toader, Christine de Brauer. Modélisation géochimique du comportement à la lixiviation des mâchefers d'incinération de déchets non dangereux. Environnement, Ingénierie & Développement, Episciences, inPress, 85, pp.40-48. ⟨10.46298/eid.2021.7696⟩. ⟨hal-03290823v3⟩

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