This paper focuses on key technologies

innovative approaches

and practical applications in the field of groundwater pollution remediation. It begins by examining the current state of groundwater contamination

identifying various pollution sources and their significant impacts on the environment and society. The discussion then categorizes physical

chemical

and biological remediation methods

with particular emphasis on innovative directions such as the use of advanced materials

integrated multi-technology strategies

and techno-economic assessments. Finally

case studies are presented to illustrate the effectiveness of multi-technology approaches in addressing complex polluted sites.