Electrokinetic Remediation and Its Combined Technologies for Removal of Organic Pollutants from Contaminated Soils

Abstract

Electrokinetic (EK) remediation and its combined methods are emerging technologies to remove organic pollutants (OPs) from contaminated soils in situ in last decade. This paper reviews six main types of EK and combined remediation technologies for the removal of OPs from contaminated soils: direct EK technique, EK combined with Fenton technique, EK combined with surfactants / co-solvents technique, EK combined with bioremediation method, the method of Lasagna, and EK combined with ultrasonic remediation method. The basic principles, characteristics, application areas and research developments of these six methods are discussed, respectively. The prospects for the future development trends of EK and its combined remediation techniques for the removal of OPs from contaminated soils are also anticipated.