Electrokinetic Removal of Chlorinated Organic Compounds

A Novel Combination of Surfactant Addition and Persulfate-assisted Electrokinetic Oxidation for Remediation of Pyrene-Contaminated Soil

“…At the beginning of the reaction, due to the movement of the electro-osmotic flow from the anode towards the cathode, ionic migration of the contaminants exhibited an increasing trend 41,42 . In fact, due to the stronger electric field and the resulting higher current density through the electrodes, most of the processes associated with the removal of contaminants, such as electro-osmosis and electrical migration, occur more efficiently and thus more contaminants are eliminated 43 .…”

Enhanced Electrokinetic Remediation of Hydrophobic Organics Contaminated Soils by the Combination of Non-Ionic and Ionic Surfactants

“…Due to the low water solubility of the most common organic contaminants and the neutrality of their molecules, it is not possible to transport the hydrophobic organics out of the soil by electromigration and/or electro-osmosis [17]. In order to overcome such limitation, the solubility of organics can be enhanced with the use of surfactant as flushing solution in anode and/or cathode [18].…”

Removal of 2,4,6-Trichlorophenol from Spiked Clay Soils by Electrokinetic Soil Flushing Assisted with Granular Activated Carbon Permeable Reactive Barrier

“…12 EK remediation has been reported to be successful and cost-effective for treating both organic and inorganic contaminants, including chlorophenols, from lowpermeability soils. 1 However, EK remediation can include some limitations related to the mobility and solubility of contaminants, control of pH, removal of the accumulated contaminants in the electrode wells, etc. In many cases, using EK remediation alone would not reach the required remediation level.…”

“…6 The toxic effect of CPs depends on the degree of chlorination and the position of the chlorine atoms, and their persistence in soils depends on their adsorption and desorption characteristics. 1 Different technologies for polluted soil remediation are available and are based on thermal, chemical, physicochemical, or biological fundamentals. To the author's knowledge, there is not enough research experience in treatment of CPs polluted soils, but there are several works about treatment of CPs polluted groundwater.…”