PL EN
Modeling and Studying the Effect of Using Multi-Anode Electrodes on the Physical and Chemical Properties After Electro-Kinetic Remediation of the Contaminated Soil
 
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University of Babylon, Engineering College, Department of Environmental Engineering, Babylon, Iraq
 
These authors had equal contribution to this work
 
 
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Israa Talib Abbas   

University of Babylon, Engineering College, Department of Environmental Engineering, Babylon, Iraq
 
 
Adv. Sci. Technol. Res. J. 2024; 18(8):113-124
 
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ABSTRACT
In this study, three laboratory experiments electro-kinetic experiments were implemented to investigate the effect of arranging three anode electrodes around the cathode electrode which is positioned in the center of the cell, on soil's physical and chemical properties. These experiments were conducted under unenhanced conditions for the contaminated soil without acidifying and with acidifying also enhanced conditions for the contaminated soil without acidifying: enhancement conditions used 1 M acetic acid in the cathode chamber as a catholyte solution with pH controlled (3-4) and distilled water as an anolyte solution. While unenhancement conditions used distilled water in the cathode chamber as a cathoylte solution without pH controlled and distilled water as an anolyte solution and acidified the contaminated soil 600 ml of 3 M acetic acid per 1 kg of dry Cd-contaminated soil. This study's results parameters determined after the end of each experiment at each point of samples were soil pH, Cl-1, EC, CaCO3, and water content. Also, a two-dimensional numerical model has been used to simulate the electrokinetic remediation of soils contaminated with heavy metals. The results indicate that the parameters measured in this work differ according to the conditions used, as the pH and calcium carbonate values were lower in acidic conditions, especially at the anode region, where they reached 5.3 and 2.69%, respectively and Chloride ions accumulated and concentrated near the anode region in three experiments, while electrical conductivity was higher at the anode and cathode regions from in the central regions. The model results also showed agree with the laboratory results.
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