RT info:eu-repo/semantics/article
T1 An evaluation of the feasibility of electrostatic separation for physical soil washing
A1 Corres, X.
A1 Baragaño, D.
A1 Menéndez-Aguado, J.M.
A1 Gallego, J.R.
A1 Sierra Fernández, Carlos
A2 Explotacion de Minas
K1 Ingeniería de minas
K1 Potentially toxic elements (PTEs)
K1 Sandy soil
K1 Mineral processing
K1 Lead
K1 Circular economy
AB [EN] We present the first application of electrostatic separation for soil washing. Soil samples were collected from the PTE-containing area of La Cruz in Linares, southern Spain. Using a single-phase high-tension roll separator with voltages ranging from 20 kV to 41.5 kV, we achieved yield values between 0.69% and 9%, with high recovery rates for certain elements such as Zn, Cu, and Mo. SEM-EDX analysis revealed three particle types, including a non-conductive fraction composed of feldspar, a middling fraction composed of mica, and a conductive fraction consisting of PTE-bearing slag grains. Attributive analysis showed that 41.5 kV was the optimal voltage for maximizing PTE concentration. Overall, electrostatic separation is a promising approach for treating soils contaminated with PTEs, particularly in dry climate areas impacted by mining activities.
PB Elsevier
SN 2352-1864
LK http://hdl.handle.net/10612/16796
UL http://hdl.handle.net/10612/16796
NO Corres, X., Baragaño, D., Menéndez-Aguado, J. M., Gallego, J. R., y Sierra, C. (2023). An evaluation of the feasibility of electrostatic separation for physical soil washing. Environmental Technology & Innovation, 103237, 103237. https://doi.org/10.1016/j.eti.2023.103237
DS BULERIA. Repositorio Institucional de la Universidad de León
RD 21-may-2024