Enhanced electrokinetic remediation techniques

When intelligently used, electrokinetic soil remediation methods can be used for remediation of even highly complicated cases of soil pollution, and this is where research is developing. Yetmg and Gu [25] compiled the research literature related to enhancing electrokinetic remediation. Use of enhancement solutions during electrokinetic remediation in order to solubilize the contaminants and keep them in the mobile state is one major research line, and the other is to combine electrokinetic remediation synergisti-cally with other soil remediation techniques. 

Despite the relatively good results found in literature for soil contaminated with TCE, the removal and elimination of COCs requires enhanced electrokinetic technologies. They comprise the use of solubilizing agents such as cosolvents, surfactants, or cyclodextrins. The other possible alternative for the removal of COCs from soil implies the combination of electrokinetic with other remediation techniques such as chemical and electrochemical oxidation/reduction, permeable reactive barriers, electrolytic barriers, and electric heating. 

Gomes HI, Dias-Ferreira C, Ribeiro AB (2012) Electrokinetic remediation of organochlorines in soil enhancement techniques and integration with other remediation technologies. Chemosphere 87(10) 1077-1090... 

---