Research progress and prospect of groundwater pollution prevention and control technology in China
The prevention and control of groundwater pollution is of great significance to the protection of freshwater resources and the mitigation of water pollution.Based on the comparison of the trend of changes in groundwater and surface water quality in China in recent years,the causes of intensified groundwater pollution were analyzed systematically.The methods and technologies used in the whole process of groundwater pollution monitoring and identification,control and remediation were summarized,including monitoring wells,environmental geophysical techniques,tracer methods,ex-situ remediation technologies,in-situ remediation technologies,and monitored natural attenuation techniques,and the characteristics of each technology and relevant action cases were analyzed.It was proposed to make comprehensive use of satellite remote sensing technology and artificial intelligence technology to accurately portray the hydrogeological characteristics of polluted sites,strengthen the use of big data and numerical simulation models of polluted sites to clarify the spatial and temporal evolution patterns of groundwater pollutants,and push forward the research and demonstration of green sustainable remediation technologies,so as to provide scientific basis for the closed-loop management of the entire process of groundwater pollution prevention and control.
groundwater pollutionresearch progresscauses of pollution exacerbationmonitoring and identificationcontrol and remediation technologies