• Proceedings of the Korean Society of Soil and Groundwater Environment Conference
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• 1999.10a
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• pp.23-27
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• 1999

After kaolin clay was compulsorily contaminated by Sr$^{2+}$ solution, the remediation characteristics by electrokinetic method were analyzed. Meanwhile, the numerical code for analysis of electrokinetic migration was developed for modelling of the soil remediation. Experimental results are as follows After 3 day remidiation under 40 voltage, the front part of experimental cell was almost decontaminated, but the behind part didn't almost be decontaminated. Accordingly, the total remediation ratio of Sr$^{2+}$ from cell soil was about 42.6 %. Also, the total Sr$^{2+}$ remediation ratio from cell soil was about 84.8 % after 6 days, and about 97.1 % after 7 days. Meanwhile, the values calculated by the developed code almost agreed with experimental values.ues.

• KSCE Journal of Civil and Environmental Engineering Research
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• v.26 no.1C
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• pp.1-8
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• 2006

The purpose of this study is to experimentally analysis the eletrokinetic phenomena and remediation characteristics developed during the application of electrokinetic remediation technique to unsaturated soils contaminated by heavy metals. In the laboratory a series of column tests are performed on degree of saturation for shooting range soil. The test results indicated that Pb is mainly removed under unsaturated conditions by electromigration within diffuse double layer, and if the initial containment concentration is below cation exchange capacity and equals to adsorption per unit soil solid weight, the remedial efficiency decreases with the decreasing of transport efficiency due to the changes in the degree of saturation in the electric gradient of 1V/cm.

• Journal of Korea Soil Environment Society
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• v.5 no.1
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• pp.25-32
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• 2000

The electrokinetic apparatus for remediation of the soil contaminated with $Sr^{2+}$ was designed. After kaolin clay compulsorily contaminated by $Sr^{2+}$ solution, the remediation characteristics by electrokinetic method were analyzed. Meanwhile. the numerical code for analysis of electrokinetic migration was developed for modelling of the soil remediation. And the input parameters needed for modelling were measured by laboratory experiment or taken from literature. Experimental results are as follows: After 3 day remidiation under 40 voltage, the front part of experimental cell was almost decontaminated, but the behind part didnt almost be decontaminated. Consequently. the total remediation ratio of $Sr^{2+}$ from cell soil was about 42.6%. Also, the total $Sr^{2+}$remediation ratio from cell soil was about 84.8% after 6 days. The values calculated by the developed code almost agreed with experimental values When voltages of electrode were increased by 10, 30, 40V, the total $Sr^{2+}$ remediation ratlos were about 21.9%. 43.3%, 84.8%, respectively, after 6 days.