城市污泥处置研究热点及其图谱可视化分析研究

Research Hotspot of Municipal Sludge Disposal and Its Map Visualization Analysis

摘要: 随着城市的高速发展，城市污泥处置成为不可忽视的重要内容。为了分析当今城市污泥处置领域的发展趋势及目前研究现状，以“城市污泥处置”为主题词，通过CiteSpaceV文献分析软件对1995~2022年中国知网的搜集到的579条文献数据进行可视化分析。结合CiteSpace软件的知识图谱，研究结果表明：1) 国内城市污泥处置领域的研究主要历经了缓慢增长阶段、稳定增长阶段和瓶颈衰减期三个阶段，该研究领域研究起步比较晚，但随着生态环境越来越受重视，目前该领域的研究处于高速发展状态。2) 部分核心人员发文数量较多，如刘佳昊、周桂清、侯永侠、宋雪英等学者是该领域的核心研究人员，其发文量分别占总量的16.9%。但是其他大部分作者发文量普遍较少。沈阳大学环境学院重点实验室形成一家独大的局面，发文频次是其他机构的五倍左右，各机构的合作关系在未来应该有待加强。3) “城市污泥”、“污泥处置”、“资源化”、“重金属”等为近几年的研究热点词，“沼气利用”和“环境风险”在发展期为突现时间最长的关键词，“处置”是突现强度最强的关键词。相关学者在该领域已经形成各个合作较为紧密的关系网。本文研究结果可以为读者清晰梳理研究近年来的研究成果及研究热点，使读者进一步理解城市污泥处置的发展脉络，从而为相关学者追踪该领域近期热点以及发掘新的研究问题提供参考。

Abstract: With the rapid development of the city, urban sludge disposal has become an important content that can not be ignored. In order to analyze the development trend and current research situation in the field of urban sludge disposal, 579 literature data collected by China Knowledge Network from 1995 to 2022 were visually analyzed by CiteSpaceV literature analysis software with “urban sludge disposal” as the key word. Combined with the knowledge map of CiteSpace software, the research results show that: 1) The domestic research in the field of municipal sludge disposal has mainly gone through three stages: Slow growth stage, steady growth stage and bottleneck attenua-tion stage. The research in this field started relatively late, but with more and more attention paid to the ecological environment, the research in this field is developing at a high speed at present. 2) Some core personnel have published a large number of articles. For example, scholars such as Liu Jiahao, Zhou Guiqing, Hou Yongxia and Song Xueying are core researchers in this field, and their articles respectively account for 16.9% of the total amount. However, most other authors generally publish few articles. The key laboratory of Shenyang University School of Environment has formed a dominant situation, and the frequency of publication is about five times that of other institutions. The cooperation among institutions should be strengthened in the future. 3) “Urban sludge”, “sludge disposal”, “resource utilization” and “heavy metals” are the hot research words in recent years, and “biogas utilization” and “environmental risk” are the key words that have emerged for the longest time in the development period, and “disposal” is the key word with the strongest intensity. Relevant scholars have formed a network of close cooperation in this field. The research results of this paper can clearly sort out the research achievements and research hotspots in recent years for readers, so that readers can further understand the development of urban sludge disposal, thus providing reference for relevant scholars to track the recent hotspots in this field and explore new research issues.