The Geochemistry of Pore Waters in Riverbed Sediments in a Mining-Impacted Landscape: Sources of Potentially Toxic Elements.

Abstract : Geochemical surveys were carried out over three years in the mining area of Alta Versilia. The physico-chemical parameters and the concentrations of potentially toxic elements (PTE) were determined both in mine drainages and in waters of the Baccatoio Stream receiving AMD. AMD have an average pH of 2.2 and contain high concentrations of Al, Fe, Mn, Cu, Zn, As, Ni, Co, Se, Cd, Sb, Pb and Tl. The discharge of AMD into the stream results in a severe contamination. Downstream of the mines, the pH increases and most PTE are readily scavenged from the stream waters by precipitation and adsorption. On the contrary, Tl behaves almost conservatively, undergoing only dilution.
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https://hal.umontpellier.fr/hal-02106905
Contributeur : Pascale Roussel <>
Soumis le : mardi 23 avril 2019 - 13:57:21
Dernière modification le : mardi 28 mai 2019 - 13:48:10

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  • HAL Id : hal-02106905, version 1

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Martina Perotti, Lisa Ghezzi, Corinne Casiot, d'Orazio, Massimo, Roberto Giannecchini, et al.. The Geochemistry of Pore Waters in Riverbed Sediments in a Mining-Impacted Landscape: Sources of Potentially Toxic Elements.. IMWA 2017 – Mine Water & Circular Economy, Jun 2017, Rauha – Lappeenranta, Finland. ⟨hal-02106905⟩

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