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http://dx.doi.org/10.7857/JSGE.2013.18.1.006

Evaluation of Electrolyte and Electrode Spacing for Application of Electrokinetic Remediation  

Park, Geun-Yong (Department of Environmental Engineering, Kumoh National Institute of Technology)
Kim, Woo-Seung (Department of Environmental Engineering, Kumoh National Institute of Technology)
Kim, Do-Hyung (Department of Environmental Engineering, Kumoh National Institute of Technology)
Yang, Jung-Seok (KIST-Gangneung Institute)
Baek, Kitae (Department of Environmental Engineering, Chonbuk National University)
Publication Information
Journal of Soil and Groundwater Environment / v.18, no.1, 2013 , pp. 6-15 More about this Journal
Abstract
The influence of processing fluids and electrode spacing on the electrokinetic process was evaluated to remediate As-, Cu-, Pb-contaminated soil. Single and mixture of sodium citrate, EDTA and NaOH was used to investigate the metal extraction. EDTA for washing reagent showed the highest removal efficiency. Based on the extraction result, the electrode spacing (20, 40, 60 cm) on the electrokinetic process was investigated to remove the multi-metals from soil. The highest removal was observed at the experiment with 60 cm of electrode spacing, however, the correlation between electrode spacing and removal of metals was not clear. The electrode spacing influenced the amount of accumulated electro-osmotic flow. BCR sequential extraction showed that electrokinetic process removed the fractionation of metals bound to Fe-Mn oxyhydroxide.
Keywords
electrokinetic; electrode spacing; chelating agents; fractionation;
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Times Cited By KSCI : 2  (Citation Analysis)
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