REMEDIATION SYSTEM FOR MULTI-CONTAMINATED SOILS COMBINING CHEMICAL OXIDATION AND SOIL FLUSHING AND ELECTROKINETIC SEPARATION AND REMEDIATION METHOD USING THE SAME

摘要

An aspect of the present invention provides a remediation system for complexly contaminated soil using a combined chemical oxidation and soil flushing method by electrokinetic remediation that increases the remediation efficiency of complexly contaminated soil as a treatment region is formed by hydrogen peroxide inserted into one side of a soil cell from an anode cell to induce the oxidation and decomposition of oil contaminants and the oil contaminants are oxidized and decomposed by being flushed and adsorbed by an anionic surface active agent inserted into the other side of the soil cell from a cathode cell to be moved into the treatment region. The remediation system for complexly contaminated soil using a combined chemical oxidation and soil flushing method by electrokinetic remediation according to an embodiment of the present invention comprises: a soil cell complexly contaminated by oil contaminants and heavy metal contaminants; an anode cell having an anode inserted into one side of the soil cell; a cathode cell having a cathode inserted into the other side of the soil cell to be separated from the anode by a certain distance; a hydrogen peroxide supply cell connected to the anode cell to supply hydrogen peroxide to one side of the soil cell; a first anionic surface active agent supply cell connected to the cathode cell to supply a first anionic surface active agent to the other side of the soil cell; and a power supply device for flushing and adsorbing oil contaminants via electric ion movement using the first anionic surface active agent to be moved from the cathode to the treatment region while simultaneously forming the treatment region, which is defined by the flowing distance of hydrogen peroxide, so that oil contaminants can be oxidized and decomposed as hydrogen peroxide is moved from the anode to the cathode via electroosmosis by supplying power to the anode and the cathode.