Enhanced Electrokinetic Remediation for the Removal of Heavy Metals from Contaminated Soils

The electrokinetic remediation of an agricultural soil contaminated with heavy metals was studied using organic acids as facilitating agents. unenhanced treatment deionized water processing fluid did not show any significant mobilization and removal due to the low solubilization precipitation at high pH conditions close cathode. EDTA citric acid 0.1 M were used agents favor dissolution transportation metals. added catholyte penetrated into specimen by electromigration. formed negatively charged complexes. Citric neutral metal complexes in (pH = 2–4). much more effective out complexed In order enhance metals, concentration increased up 0.5 M, resulting 78.7% Cd, 78.6% Co, 72.5% Cu, 73.3% Zn, 11.8% Cr 9.8% Pb.