Mohsen Saeedi and Behnoosh Khataei
Electrokinetic, Chromium, Phenol, EDTA
Multiple contaminant remediation of soils specially clayey soils is a challenging problem in soil remediation. In this paper, effect of applying ethylenediamine tetraacetic acid (EDTA) as an electrolyte solution instead of water in order to enhance simultaneous remediation of chromium and phenol in kaolin is investigated. Three experiments were carried out under the voltage gradient of 1, 1.5, and 2 v/cm, to determine the effect of the voltage gradient on remediation efficiency. Results showed that remediation efficiency is influenced by this parameter. Application of EDTA in both anode and cathode when the voltage gradient is 2 v/cm, leads to 83.45 and 99.21 % chromium removal and reduction efficiency, repectively. Under above mentioned circumstances phenol removal efficiency reached to approximately 50%.
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