| Title | An evaluation of the feasibility of electrostatic separation for physical soil washing |
|---|---|
| ID_Doc | 25897 |
| Authors | Corres, X; Baragaño, D; Menéndez-Aguado, JM; Gallego, JR; Sierra, C |
| Title | An evaluation of the feasibility of electrostatic separation for physical soil washing |
| Year | 2023 |
| Published | |
| Abstract | 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.& COPY; 2023 The Author(s). Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). |
| https://doi.org/10.1016/j.eti.2023.103237 |
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