Method for removing cadmium in contaminated soil through watermelon peel leaching

The invention discloses a method for removing cadmium in contaminated soil through watermelon peel leaching, relating to the technical field of remediation of heavy metal contaminated soil in environments. The method comprises the following steps: digesting watermelon peel powder through a KCl solution to obtain watermelon peel leacheate; leaching the cadmium contaminated soil of a farmland through the leacheate. According to the method, watermelon peels are used as a leaching material, the cost is low, an instant effect is produced, secondary contamination is avoided, environment-friendly effect is achieved, the efficiency is high, the generalization performance is good; waste resources can be recycled, and the cadmium contaminated soil can be restored.