基于文献计量学的剩余污泥高值化利用研究趋势分析

Future research trends of high-value utilization of excess sludge based on bibliometrics

剩余污泥高值化利用作为污泥减量化和资源化的有效技术手段,是实现废弃物无害处理、高能回收目标的重要举措。通过文献计量学方法,对Web of Science核心数据库中2002—2021年收录的剩余污泥高值化利用相关文献进行研究现状及热点分析。结果表明,剩余污泥高值化利用领域的论文发表量总体递增,中国的年发表量和被引次数均占据主导地位,美国和澳大利亚次之。全球研究机构中,中国科学院发表量最多(424篇),同济大学的文章总被引次数最高(16049次)。Bioresource Technology和Water Research期刊发表的相关研究性论文分别达到1075篇和538篇,Journal of Hazardous Materials期刊的篇均被引次数最多,达到65.18次。剩余污泥厌氧消化回收甲烷是主要研究热点,而针对污泥复杂的理化性质以及能源回收方式与应用前景等方面,采用更加先进创新的手段探索新型高能值产物的研究,将引起越来越多的关注。

The high-value utilization of excess sludge,as an effective technical manner for sludge reduction and recycling,is an important measure to achieve the goal of harmless waste disposal and high-energy recycling.Using the method of bibliometrics,the research status and hotspots of the published literatures related to the high-value utilization of excess sludge in the core database of Web of Science from 2002 to 2021 were analyzed.Genernally,the number of papers published in this area showed an increasing trend.The country with the largest total number of publications and citations was China,followed by the United States and Australia.Among the global research institutions,the Chinese Academy of Sciences published the largest number of papers(424),and Tongji University had the highest total citations(16049 times).The relevant research papers published in“Bioresource Technology”and“Water Research”reached 1075 and 538 respectively,and“Journal of Hazardous Materials”had the most citations per paper,reaching 65.18 times.Anaerobic digestion of excess sludge to recover methane was the main research hotspot in the current research.In view of the complex physical and chemical properties of sludge,as well as energy recovery methods and application prospects,more advanced and innovative methods would be used to explore new high-energy value products and should attract increasing attention.