Simultaneous Application of Electrokinetic and Washing Solvents for the Decontamination of Zn and Pb from tailings of Angouran lead and Zinc Mine | ||
| Journal of Mining and Environment | ||
| مقاله 18، دوره 16، شماره 4، مهر و آبان 2025، صفحه 1471-1485 اصل مقاله (9.49 M) | ||
| نوع مقاله: Original Research Paper | ||
| شناسه دیجیتال (DOI): 10.22044/jme.2024.14913.2836 | ||
| نویسندگان | ||
| Amirhossein Karimi* 1؛ Amin Falamaki2؛ Farid Soltani3؛ Mehdi Homaee4، 5؛ Nader Shariatmadari3 | ||
| 1Faculty of Civil Engineering., Shahrood University of Technology, Shahrood, Iran | ||
| 2Department of Civil Engineering, Payame Noor University, P.O. Box 19395-3697, Tehran, Iran | ||
| 3Department of Civil Engineering, Iran Univ. of Science and Technology, Narmak, Tehran 16844, Iran | ||
| 4Department of Soil Science, Tarbiat Modares University, Tehran14115-336, Iran | ||
| 5Agrohydrology Research Group (Grant No. IG-39713), Tarbiat Modares University, Tehran 14115, Iran | ||
| چکیده | ||
| Mining activities have led to the accumulation of large quantities of mineral tailings containing potentially hazardous metals, contaminating the surrounding soil. This study investigated the effectiveness of electrokinetic remediation combined with washing solvents for the decontamination of zinc and lead from mine tailings. Samples were collected from various locations within the Angouran mine in Zanjan, Iran, and analyzed for total metal concentration using the standard ICP method. Electrokinetic tests were conducted using different washing solutions—hydrochloric acid, nitric acid, acetic acid, and sulfuric acid—each at a concentration of 0.1 M and mixed with soil in a 1:2 solution-to-solid ratio. A voltage of 1.5 V/cm was applied throughout the experiments. To mitigate heavy metal precipitation near the cathode, the same chemical solutions were used in the cathode chamber. The results demonstrated that distilled water resulted in the lowest removal efficiency for zinc (16%) and lead (11.5%), while hydrochloric acid showed the highest removal efficiencies of 64% for zinc and 45% for lead. These findings indicated that electrokinetic remediation, particularly when using hydrochloric acid as a complexing agent, was an effective method for removing significant quantities of zinc and lead from contaminated soil. | ||
| کلیدواژهها | ||
| Angouran Mine Tailings؛ Electrokinetic Remediation؛ Zinc؛ Lead؛ Electroosmosis | ||
| مراجع | ||
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