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Mechanisms of carbon-based materials on extracellular electron transfer of anaerobic ammonium oxidizing bacteria
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Shuang HAN1, Meng-jiao GAO1, Hui-min FU1, 2, You-peng CHEN1, *
China Environmental Science | 2025, 45(7) : 3692 - 3703
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China Environmental Science | 2025, 45(7): 3692-3703
• Water Pollution Control •
Mechanisms of carbon-based materials on extracellular electron transfer of anaerobic ammonium oxidizing bacteria
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Shuang HAN1, Meng-jiao GAO1, Hui-min FU1, 2, You-peng CHEN1, *
Affiliations
  • 1.College of Environment and Ecology, Chongqing University, Chongqing, 400045, China
  • 2.Chongqing Technology and Business University National Intelligent Manufacturing Service International Science and Technology Cooperation Base, Chongqing 400067, China
Published: 2025-07-20
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This review summarizes the extracellular electron transfer mechanisms in anaerobic ammonium oxidation (anammox) systems and strategies for their enhancement, categorizing the influence mechanisms of carbon-based materials on anammox bacteria into three aspects: conductivity of carbon-based materials, functional groups on their surfaces, and interactions between microbial communities and extracellular polymeric substances. Studies have demonstrated that biochar, activated carbon, carbon nanomaterials, and iron-carbon composites can regulate the anammox process by mediating extracellular electron transfer. Carbon-based materials primarily enhance anammox performance through shortening reactor start-up periods, improving nitrogen removal efficiency, and alleviating pollutant inhibition effects. These materials not only effectively enrich microorganisms but also promote the stability enhancement of granular sludge, demonstrating significant application potential in anammox systems. Future research should focus on material modification to further improve the sustainability of carbon-based materials in practical applications.

carbon-based materials  /  anaerobic ammonium oxidation  /  extracellular electron transfer  /  influence mechanism
韩双, 高梦娇, 傅慧敏, 陈猷鹏. 碳基材料对厌氧氨氧化菌胞外电子传递的影响. 中国环境科学, 2025 , 45 (7) : 3692 -3703 .
Shuang HAN, Meng-jiao GAO, Hui-min FU, You-peng CHEN. Mechanisms of carbon-based materials on extracellular electron transfer of anaerobic ammonium oxidizing bacteria[J]. China Environmental Science, 2025 , 45 (7) : 3692 -3703 .
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Year 2025 volume 45 Issue 7
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  • Receive Date：2024-12-18
  • Online Date：2026-10-08
  • Published：2025-07-20
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  • Received：2024-12-18
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Affiliations
    1.College of Environment and Ecology, Chongqing University, Chongqing, 400045, China
    2.Chongqing Technology and Business University National Intelligent Manufacturing Service International Science and Technology Cooperation Base, Chongqing 400067, China
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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