Research Progress on Chemical Remediation and Strengthening Methods of Heavy Metal Contaminated Soil in Mining Areas

With the intensification of mining activities, the problem of soil pollution in mining area becomes more and more serious. Nowadays, the main methods include physical remediation, chemical remediation, bio-remediation and so on. Among them, chemical remediation method is efficient, fast, easy to combine with other methods to strengthen remediation, and has a good application prospect in synergistic effect. Based on the research status and existing problems of chemical remediation, this paper summarizes the research hotspots of chemical remediation combined with other methods, and concludes that current chemical remediation should be combined with other methods to strengthen remediation, so as to ensure that the remediation process can reduce the secondary pollution of soil caused by chemical substances.