Research progress of emergency technology for sudden environmental pollution based on CiteSpace analysis

It is of great significance for the technical innovation and scientific management to sort out the research progress in the field of emergency treatment technologies for environmental pollution in China. To analyze the research progress of emergency treatment technologies for environmental emergencies, the relevant literature collected in CNKI database from 1995 to 2020 was used as the data source and CiteSpace software was applied to visualize the literature characteristics, hot topics and research trends based on the bibliometric analysis method. The results showed that the field of environmental pollution emergency treatment technologies in China started late, the number of literature was small, the research foundation was relatively weak and there was still a lack of strong leaders and core research teams. The emergency treatment technologies were mainly concentrated in the field of water environment. The keyword cluster analysis found that the emergency treatment technology researches mainly focused on emergency monitoring, technology screening, activated carbon adsorption, coagulation precipitation and other aspects. The keyword clustering timeline showed that the future development directions should be mainly technology screening, activated carbon adsorption, emergency monitoring and so on.