The Geochemistry of Pore Waters in Riverbed Sediments in a Mining-Impacted Landscape: Sources of Potentially Toxic Elements. - Université de Montpellier Accéder directement au contenu
Communication Dans Un Congrès Année : 2017

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

Martina Perotti
  • Fonction : Auteur
Lisa Ghezzi
  • Fonction : Auteur
d'Orazio, Massimo
  • Fonction : Auteur
Roberto Giannecchini
  • Fonction : Auteur
Riccardo Petrini
  • Fonction : Auteur

Résumé

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.

Domaines

Hydrologie
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Dates et versions

hal-02106905 , version 1 (23-04-2019)

Identifiants

  • HAL Id : hal-02106905 , version 1

Citer

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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