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Technical University of Crete
Technical University of Crete
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| URI | http://purl.tuc.gr/dl/dias/A3734AB2-4C2A-452F-907D-92FA04BAC490 | - |
| Identifier | http://www.sciencedirect.com/science/article/pii/S030147970600394X | - |
| Identifier | https://doi.org/10.1016/j.jenvman.2006.12.003 | - |
| Language | en | - |
| Extent | 10 pages | en |
| Title | Transport of cadmium and assessment of phytotoxicity after electrokinetic remediation | en |
| Creator | Giannis Apostolos | en |
| Creator | Gidarakos Evaggelos | en |
| Creator | Γιδαρακος Ευαγγελος | el |
| Creator | Skouta Antigoni | en |
| Publisher | Elsevier | en |
| Content Summary | The use of ethylene diamine tetraacetic acid (EDTA) on the electrokinetic removal of cadmium-contaminated soil was evaluated. A total of four different tests were conducted using EDTA as a washing solution as well as a purging solution at the electrode compartments. The efficiency of electrokinetic extraction was significantly influenced by the pH of the soil medium. The results show that EDTA was effective in desorbing cadmium at a high pH, with Cd–EDTA− anion complexes migrating toward the anode. At low pH values near the anode area, cadmium existed as Cd2+, migrating toward the cathode. Such contradicting directions of cadmium have resulted in its detrimental removal from the soil cell. However, accumulation of cadmium near the cathode was observed at the end of the tests due to the dominating low pH in the soil cell. The phytotoxicity after the electrokinetic process was investigated using Sorghum saccharatum, Lepidium sativum and Sinapis alba plants. The germination index was a major endpoint estimated by measuring seed germination and shoot elongation. The results obtained show that the phytotoxicity was increased after electrokinetic extraction. Despite, the extensive cadmium removal from two-thirds of the cell, the low pH of the soil was the principal parameter exhibiting the phytotoxicity. | en |
| Type of Item | Peer-Reviewed Journal Publication | en |
| Type of Item | Δημοσίευση σε Περιοδικό με Κριτές | el |
| License | http://creativecommons.org/licenses/by/4.0/ | en |
| Date of Item | 2015-10-31 | - |
| Date of Publication | 2008 | - |
| Subject | Cadmium | en |
| Subject | Diaminoethanetetraacetic acid | en |
| Subject | EDTA (Ethylenediaminetetraacetic acid) | en |
| Subject | Ethylenedinitrilotetraacetic acid | en |
| Subject | ethylenediaminetetraacetic acid | en |
| Subject | diaminoethanetetraacetic acid | en |
| Subject | edta ethylenediaminetetraacetic acid | en |
| Subject | ethylenedinitrilotetraacetic acid | en |
| Subject | Electrokinetic remediation | en |
| Subject | Phytotoxicity | en |
| Subject | Germination index | en |
| Bibliographic Citation | A. Giannis, E. Gidarakos and A. Skouta, "Transport of cadmium and assessment of phytotoxicity after electrokinetic remediation", J. Environment. Manage., vol. 86, no. 3, pp. 535-544, Feb. 2008. doi:10.1016/j.jenvman.2006.12.003 | en |
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