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Faisal, AAH, Rashid, IT, Hassan, WH, Al-Ansari, N, Al-Hashimi, O and Ghfar, AA (2023) Remediation of Silty Clay Soil Contaminated with Metal Ions by Electric Field Technology with the Support of Acidic Injection Wells. Water, Air, & Soil Pollution, 234 (6). ISSN 0049-6979
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Remediation of Silty Clay Soil Contaminated with Metal Ions by Electric Field Technology with the Support of Acidic Injection Wells.pdf - Accepted Version Download (627kB) | Preview |
Abstract
This work aims to propose a new approach for enhancement the reclamation of soil spiked with metal ions, specifically lead and chromium by applying electro-kinetic method. Different tests were carried out on Iraqi silty clay soil that had been polluted with either lead or chromium in concentration of 1500 mg/kg (single system) and in the form of binary system consisted of lead and chromium at concentrations of 750 mg/kg for each metal. The tests have been conducted with 7 days processing time and 1-V/cm voltage gradient. In order to improve the electro-kinetic remediation ability to remove the aforementioned metal ions from Iraqi soil, acetic acid enhanced by two injection wells were applied. Experimental outcomes proved that the lead and chromium can be removed with efficiencies of 18.5 and 12.5%, respectively for tests performed using the distilled water. Utilizing 1-M acetic acid led to an increase in the removal efficiencies to 37 and 21.5%, respectively. However, addition of two injection wells in combination of an acetic acid result in significant increasing in the removal to be ≤ 59%. Finally, the removals of lead and chromium have values of 42 and 28% respectively in the binary system for acetic acid and two injection wells. These values are lower than the efficiencies for same metals in the single system operating in the same conditions, which may be due to metals competing for desorption from the soil.
| Item Type: | Article |
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| Additional Information: | This version of the article has been accepted for publication, after peer review (when applicable) and is subject to Springer Nature’s AM terms of use, but is not the Version of Record and does not reflect post-acceptance improvements, or any corrections. The Version of Record is available online at: http://doi.org/10.1007/s11270-023-06354-0 |
| Uncontrolled Keywords: | Environmental Sciences |
| Subjects: | G Geography. Anthropology. Recreation > GE Environmental Sciences T Technology > TD Environmental technology. Sanitary engineering |
| Divisions: | Civil Engineering & Built Environment |
| Publisher: | Springer |
| SWORD Depositor: | A Symplectic |
| Date Deposited: | 20 Nov 2023 11:22 |
| Last Modified: | 30 May 2024 00:50 |
| DOI or ID number: | 10.1007/s11270-023-06354-0 |
| URI: | https://researchonline.ljmu.ac.uk/id/eprint/21891 |
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