Experimental and Numerical studies on remediation of mixed metal-contaminated sediments by electrokinetics focusing on fractionation changes

Ayyanar, Arulpoomalai; Thatikonda, Shashidhar

doi:10.1007/s10661-021-09064-4

Cited by 5 publications

(1 citation statement)

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“…Electrokinetic remediation has proven to require simple equipment; it can be used as both ex situ and in situ techniques [ 1 ] and it is a low‐cost method for the treatment of trace metals contaminated soils and sediments. [ 2 ] However, regardless of the large number of advantages, the major drawback of electrokinetic (EK) remediation is that there is very little data on real application in the environment, that is, even today most research is carried out in laboratories.…”

Section: Introductionmentioning

confidence: 99%

Copper removal from sediment by electrokinetic treatment with electrodes in a hexagonal configuration

Duduković

Beljin

Dubovina

et al. 2023

CLEAN Soil Air Water

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This study was conducted to examine the effectiveness of removing Cu from sediment by electrokinetic (EK) treatment with electrodes in a hexagonal configuration, and whether water leached can be reused. Three experiments were performed (e1: continuous application of electricity, e2: no electricity at night, e3: application of solar panels) to evaluate the impact of the absence of electricity during night and the variations that may occur during the day when solar panels were used on the efficiency of the treatment. At the end of the treatments, 2-13% more Cu was detected in the cathode region (locations 5 and 10) compared to the initial concentration. Furthermore, based on the calculated mass balance, we concluded that Cu was bound to the electrode surface. In the remaining EK cell locations, the Cu content was reduced by 50-60% for e1, e2, and e3. For field application, treatment e3, in which solar panels are applied, is recommended, since there are no significant differences in the achieved efficiencies. A significant advantage of the treatment from an ecological point of view is reflected in the absence of an acidification effect. In this study, we also applied a model which showed satisfactory agreement with the experimental results. Analyses of leached water after electrokinetic treatments, e1, e2, e3, indicate that this water has a potential for irrigation use of agricultural land, aiming to meet the goals of the circular economy.

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Section: Introductionmentioning

confidence: 99%