Abstract:
Sort out and summarize the remediation technologies for soil heavy metal pollution, providing a reference basis for subsequent soil heavy metal pollution control work. By using the form of literature review, the soil heavy metal remediation technologies are summarized, problems are raised and prospects are made. At present, the main soil heavy metal remediation technologies applied are bioremediation, chemical remediation, physical remediation and combined remediation technologies. These several remediation technologies can all achieve good remediation effects in the remediation of heavy metal pollution in soil, but they all have certain limitations. When carrying out the remediation work of heavy metal pollution in soil, appropriate remediation technologies should be selected according to the specific conditions of different soils. The research conclusions include strengthening the follow-up research on remediation technologies, treating pollution from the root cause, and preventing the occurrence of secondary pollution. Comprehensively consider the soil conditions of the contaminated land and scientifically apply soil heavy metal remediation technologies; Adapt to local conditions and flexibly select suitable combined repair technologies. Through the coordination of different repair technologies, solve other problems arising during the repair process.