HEQiu-lai,LIJin-feng,YANXiao-hui,et al.Advances in Anaerobic/Oxic/Anoxic-Aerobic Granular Sludge (AOA-AGS) for Simultaneous Endogenous Nitrogen and Phosphorus Removal[J].China Water & Wastewater,2025,41(8):14-21.
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Advances in Anaerobic/Oxic/Anoxic-Aerobic Granular Sludge (AOA-AGS) for Simultaneous Endogenous Nitrogen and Phosphorus Removal

China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU] volume: 第41卷 Number: 第8期 Page: 14-21 Column: Date of publication: 2025-04-17
Author(s):
HE　Qiu-lai1; 2; 3;  LI　Jin-feng1; 2; 3;  YAN　Xiao-hui1; 2; 3;  LIU　Liang1; 2; 3;  BI　Peng1; 2; 3;  JI　Ya-ning1; 2; 3;  XU　Peng1; 2; 3;  MA　Jing-wei1; 2; 3
（1. College of Civil Engineering， Hunan University， Changsha 410082， China； 2. Key Laboratory of Building Safety and Energy Efficiency， Ministry of Education， Hunan University， Changsha 410082， China； 3. Hunan Engineering Research Center of Water Security Technology and Application， Hunan University， Changsha 410082， China）
Keywords:
aerobic granular sludge;  anaerobic/oxic/anoxic;  feast-famine;  simultaneous nitrification;  denitrification and phosphorus removal;  functional microorganisms
Abstract:
Activated sludge is the most widely utilized approach for cost-efficient wastewater treatment at present. However, There are some problems in the traditional nitrogen and phosphorus removal process, such as competition for carbon sources, contradictions in sludge retention time, poor settle ability of activated sludge, huge land occupation and low operational efficiency. The anaerobic/oxic/anoxic-aerobic granular sludge (AOA-AGS) is a promising technology for wastewater treatment, effectively utilizing carbon sources within the wastewater for endogenous nitrogen and phosphorus removal. This paper discussed the distinct characteristics of AOA and AGS technologies, exploring their synergistic foundation and advantages through the “feast-famine theory” and anaerobic endogenous carbon sources transformation. It summarized the structures and abundances of functional groups within AOA-AGS, and reviewed the effects of key operational factors, such as oxygen supply, time configuration, and carbon sources on treatment performances. Finally, it proposed the remained concerns and future directions of this promising technology.
Last Update: 2025-04-17