工业水处理 ›› 2025, Vol. 45 ›› Issue (5): 1-11. doi: 10.19965/j.cnki.iwt.2024-0526

• 专论与综述 •    

铁氨氧化工艺的脱氮驱动机制及影响因素研究进展

张馨蕾1(), 刘文如1,2,3()   

  1. 1. 苏州科技大学环境科学与工程学院,江苏 苏州 215009
    2. 城市生活污水资源化利用技术国家地方 联合工程实验室,江苏 苏州 215009
    3. 江苏省水处理技术与材料协同创新中心,江苏 苏州 215000
  • 收稿日期:2024-09-19 出版日期:2025-05-20 发布日期:2025-05-22
  • 通讯作者: 刘文如
  • 作者简介:

    张馨蕾(2003— ),本科,E-mail:

  • 基金资助:
    国家自然科学基金项目(52470090); 城市生活污水资源化利用技术国家地方联合工程实验室开放课题项目(2018KF05); 江苏省研究生科研创新计划项目(KYCX20_2778)

Progress on nitrogen removal driving mechanism and influencing factors of Feammox

Xinlei ZHANG1(), Wenru LIU1,2,3()   

  1. 1. School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China
    2. National and Local Joint Engineering Laboratory of Urban Domestic Sewage Resource Utilization Technology, Suzhou 215009, China
    3. Jiangsu Collaborative Innovation Center of Water Treatment Technology and Materials, Suzhou 215000, China
  • Received:2024-09-19 Online:2025-05-20 Published:2025-05-22
  • Contact: Wenru LIU

摘要:

铁氨氧化(Feammox)作为一种新型废水处理工艺,因厌氧耗能低、无需添加有机碳源及污泥产量较低等优势引发广泛关注。在简要概述Feammox发现过程、反应机理和功能菌群的基础上,重点对微生物接触、电子穿梭体以及纳米铁等直接驱动方式以及生物炭介导和微生物利用氧气介导等间接驱动方式的Feammox驱动过程及内在机制进行解析;随后概括了pH、氧化还原电位(ORP)、温度、溶解氧、铁源、氨氮浓度、铁浓度、有机物含量和C/N等因素对Feammox反应的影响特性;最后,总结分析了Feammox脱氮技术在实际工艺应用中存在的障碍,并对该工艺未来发展趋势进行了展望。

关键词: 铁氨氧化(Feammox), 铁氨氧化菌, 脱氮工艺, 驱动机制

Abstract:

As a new type of wastewater treatment process, iron ammonia oxidation(Feammox) has attracted wide attention due to its advantages of low anaerobic energy consumption, no need to add organic carbon source and low sludge yield in the reaction process. Based on a brief overview of the discovery process, reaction mechanism, and functional microbiota of Feammox, this paper focused on the analysis of Feammox driving process and underlying mechanisms through direct driving methods such as microbial contact, electron shuttle, and nano iron direct driving, as well as indirect driving methods such as biochar mediated and microbial oxygen utilization mediated. Subsequently, the influence characteristics of pH, oxidation-reduction potential(ORP), temperature, dissolved oxygen, iron source, ammonia nitrogen concentration, iron concentration, organic content, and C/N on Feammox reaction were summarized. Finally, the obstacles in the practical application of Feammox denitrification technology were summarized and analyzed, and the future development trends of this process were discussed.

Key words: iron ammonia oxidation(Feammox), Feammox bacteria, denitrification process, driving mechanism

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