Journal of Guangxi Normal University(Natural Science Edition) ›› 2024, Vol. 42 ›› Issue (2): 16-29.doi: 10.16088/j.issn.1001-6600.2023052702

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Research Progress of Anaerobic Digestion Pretreatment of Excess Activated Sludge Based on Bibliometric Analysis

YANG Yangyang1*, ZHU Zhenting1, YANG Cuiping2, LI Shihao1, ZHANG Shu3, FAN Xiulei1*, WAN Lei1   

  1. 1. School of Environmental Engineering, Xuzhou University of Technology, Xuzhou Jiangsu 221018, China;
    2. Xuzhou Water Conservancy Engineering Construction Management Center, Xuzhou Jiangsu 221000, China;
    3. Xuzhou Water Conservancy Building Design and Research Institute Co., LTD,Xuzhou Jiangsu 221000, China
  • Received:2023-05-27 Revised:2023-06-26 Published:2024-04-22

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Abstract: Anaerobic digestion of excess sludge is one of the most effective technologies for anaerobic digestion treatment, which has the dual function of reducing environmental pollution and providing energy. The study compared and analyzed the current research hotspots in anaerobic digestion of excess sludge based on the relevant articles in the CNKI database and the Web of Science core database from 2003 to 2023 via bibliometric methods and visualization tools. The application of anaerobic digestion of excess sludge to produce methane is an important purpose for excess sludge treatment, and there is an important correlation between pretreatment technology and excess sludge treatment. The application of different pretreatment technologies, such as physical, chemical and biological enzymes, have a significant impact on biogas production, and a more appropriate pretreatment technology for the physical and chemical properties of the sludge can further increase the degree of excess sludge resource utilization while saving costs.

Key words: excess activated sludge, anaerobic digestion, methane, pretreatment, resource utilization

CLC Number:  X703
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