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Electrokinetics remediation, also termed electrokinetics, is a technique of using direct electric current to remove organic, inorganic and heavy metal particles from the soil by electric potential. The use of this technique provides an approach with minimum disturbance to the surface while treating subsurface contaminants.
Electrokinetic remediation device and continuous removal system for the removal and recovery of chromium-contaminated soils
ActiveCN120001788BContaminated soil reclamationProcess efficiency improvementElectrokinetic remediationEnvironmental engineering
The application discloses a kind of electric remediation device and continuous removal system for removing and recovering chromium-contaminated soil, and relates to the technical field of soil electrokinetic remediation, comprising: tank, tank is divided into soil chamber, permeable reaction wall, anode chamber and first cathode chamber by first hollow partition arranged inside tank;First electrode rod is inserted in anode chamber and first cathode chamber;First anion exchange membrane is clamped in the first hollow partition between soil chamber and permeable reaction wall, to prevent trivalent chromium ions from entering soil chamber in reverse;Cation exchange membrane is clamped in the first hollow partition between permeable reaction wall and anode chamber, to make trivalent chromium ions directional migration to first cathode chamber under electric field driving, first anion exchange membrane effectively prevents trivalent chromium ions generated in reduction process from migrating into soil due to electromigration, and further causing secondary pollution;Cation exchange membrane ensures that trivalent chromium ions directional migrate to first cathode chamber under the action of electric field.
Owner:NANJING INST OF ENVIRONMENTAL SCI MINIST OF ECOLOGY & ENVIRONMENT OF THE PEOPLES REPUBLIC OF CHINA