REMEDIATION OF SALT IMPACTED GROUNDWATER WITH ELECTROKINETICS.

enhance the reclamation of salt impacted groundwater. Electrokinetic technology has long been used in applications that require soil dewatering. More recently there has been widespread research and application of this technology to contaminated sites treatment. Electrokinetic remediation is achieved by applying an electric field over the impacted area causing the movement of ions. Pilot studies and research demonstrate that the total voltage will vary from site to site, as it is dependent on the conductivity of the soil and the spacing of the anode and cathode. It is most applicable in low permeability soils, where extraction is difficult, because the soil is typically saturated and is not readily drained. The process has also been used, or is being investigated, for remediation of heavy metals, radionuclides, and organic contaminants. This new innovative research is being conducted at an Alberta Transportation salt storage yard where the impact of salt has caused considerable impact to surrounding vegetation. The pilot study will be in operation for two years to investigate the feasibility of In-situ Electrokinetics combined with vapour extraction and pneumatic fracturing; to enhance the removal of salts from salt impacted soil and groundwater. This paper presents a discussion of the project, including a summary of preliminary results, and economics