A Review on Remediation Technology and the Remediation Evaluation of Heavy Metal-Contaminated Soils

Heavy metals from industrial activities, mining, and vehicle emissions contaminate agricultural soils and pose health risks to humans through the food chain. This review summarizes different methods to clean contaminated soils, ranging from physical removal to using plants and microorganisms to absorb metals. The most promising approaches combine multiple techniques and use biological methods like planting metal-accumulating plants, which are cheaper and less damaging to soil ecology than traditional chemical or thermal treatments.