The invention discloses a repairing method of heavy
metal contaminated soil. The repairing method includes the steps of (1), breaking heavy
metal contaminated soil to obtain fine soil; (2), spreadingmixed repairing additives to the fine soil, spraying
phosphoric acid solution to the fine soil to keep soil
moisture at 45%, covering the fine soil with thin film, and repairing for 25 days; (3), adding excrement to repaired soil, adding in earthworms, inoculating
magnetotactic bacteria to the fine soil, and culturing for 30 days; (4), keeping the soil submerged, placing magnets on the surface ofsoil, removing earthworms
crawling out the soil, and cleaning the surface soil after 12 days; (5), planting grass in the soil. The repairing method can effectively solve the problems that fixing efficiency is low, heavy
metal is easy to release again, repairing cycle is long, and repairing cost is high of the conventional repairing method.