Electrokinetics: Electric Current Technologies
Overview
Electrokinetics relies upon application of a low-intensity direct current through the soil between ceramic electrodes that are divided into a cathode array and an anode array. This mobilizes charged species, causing ions and water to move toward the electrodes. Metal ions, ammonium ions, and positively charged organic compounds move toward the cathode. Anions such as chloride, cyanide, fluoride, nitrate, and negatively charged organic compounds move toward the anode. Removal of contaminants at the electrode may be accomplished by several means, among which are: electroplating at the electrode; precipitation or co-precipitation at the electrode; pumping of water near the electrode; or complexing with ion exchange resins.
4.5 Electrokinetic Separation (In Situ Soil Remediation Technology)
In Remediation Technologies Screening Matrix and Reference Guide, Version 4.0. Federal Remediation Technologies Roundtable.
Electrokinetics
The Center for Public Environmental Oversight (CPEO), Washington, DC.
Technology Overview Report: Electrokinetics
1997
This report prepared by the Ground Water Remediation Technologies Analysis Center (GWRTAC) provides an introduction to the general principles of the electrokinetic technology, its criteria for application, performance, advantages and limitations to use, selected commercial applications, and references.
