Abstract
In order to understand the research hotspots and development status of sludge disposal field at home and abroad, the Web of ScienceTM core collection was used as the data source to retrieve the articles on sludge disposal published in the 15 years from 2006 to 20 20. Using visual metrological analysis software CiteSpace and bibliometrics to draw the knowledge map of sludge disposal field, and analyze the research country, institution, discipline layout and keyword emergence, etc. The results show that in the past 15 years, the international sludge disposal field has shown an overall growth trend. The research hotspots in sludge disposal field can be divided into two stag es. The research focus of sludge disposal can be divided into two stages: land utilization and energy utilization from 2006 to 2010; Adsorption studies were added from 2010 to 2020. The impact of land use and sludge on the environment, the characteristics analysis of personal care products and heavy metals in sludge, and the environmental impact assessment of sludge disposal may become the main research trends in the future.
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