Device and method for repairing uranium-contaminated soil through electric leaching

The invention provides a device and a method for repairing uranium-contaminated soil through electric leaching. The device comprises a reaction tank, a plurality of permeable reactive barriers are arranged in the reaction tank; the permeable reactive barrier comprises an active material, and the active material is a mixture of activated carbon and hydroxyapatite or an activated carbon-loaded hydroxyapatite material. The main components of the permeable reactive barrier are hydroxyapatite and activated carbon, uranium ions pass through the permeable reactive barrier in the process of migrating to the anode and the cathode, adsorption capture and even stable calcium uranium mica crystals can be formed, and liquid can penetrate through the permeable reactive barrier. The uranium element in the soil can be removed and recycled by removing the permeable reactive barrier. According to the method, uranium in the uranium-containing polluted soil can be fully removed and recycled, the uranium removal rate and the uran