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Progress of complete ammonia oxidization throughout the wastewater treatment system
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Zi-xuan HE1, Shi CHEN1, *, Yi-feng XU1, Chuan-zhou LIANG1, Lai PENG1, 2, **
China Environmental Science | 2025, 45(5) : 2546 - 2557
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China Environmental Science | 2025, 45(5): 2546-2557
• Water Pollution Control •
Progress of complete ammonia oxidization throughout the wastewater treatment system
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Zi-xuan HE1, Shi CHEN1, *, Yi-feng XU1, Chuan-zhou LIANG1, Lai PENG1, 2, **
Affiliations
  • 1.Hubei Key Laboratory of Mineral Resources Processing and Environment, Wuhan University of Technology, Wuhan 430070, China
  • 2.Shenzhen Research Institute of Wuhan University of Technology, Shenzhen 518000, China
Published: 2025-05-20
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The discovery of complete ammonia-oxidizing bacteria（comammox）provided a novel direction for improving nitrification efficiency in wastewater treatment systems. The potential of their metabolic pathways and functional genes for efficient nitrogen an d carbon removal from wastewater was demonstrated. However, strategies to achieve robust comammox enrichment remained controversial. Further investigations were required to characterize the specific contributions to ammonia removal and nitrous oxide（N2O）production during the nitrification process. The technical strategies for efficient comammox enrichment and the impacts of key factors including environmental substrate concentration, dissolved oxygen, operational processes, and temperature on the selective enrichment of comammox were summarized. Chlorate was employed as a specific inhibitor targeting comammox in combination with 1-octyne to construct a dual-inhibitor experimental system, which was capable of clarifying the nitrification contribution and N2O emission potential of comammox in wastewater treatment systems.

complete ammonia oxidation bacteria（comammox）  /  nitrification  /  wastewater treatment  /  N2O
Zi-xuan HE, Shi CHEN, Yi-feng XU, Chuan-zhou LIANG, Lai PENG. Progress of complete ammonia oxidization throughout the wastewater treatment system[J]. China Environmental Science, 2025 , 45 (5) : 2546 -2557 .
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Year 2025 volume 45 Issue 5
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  • Receive Date：2024-10-28
  • Online Date：2026-03-18
  • Published：2025-05-20
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  • Received：2024-10-28
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Affiliations
    1.Hubei Key Laboratory of Mineral Resources Processing and Environment, Wuhan University of Technology, Wuhan 430070, China
    2.Shenzhen Research Institute of Wuhan University of Technology, Shenzhen 518000, 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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