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Fe3+ reduction-coupled anaerobic ammonia oxidation (Feammox) bacteria are a type of autotrophic nitrogen-removing bacteria discovered in recent years. In this study, Fe2O3 was added to the anammox system as a kind of fast starter for the Feammox, and the incubation process, nitrogen removal performance, and kinetic simulation process of Feammox were investigated. The data showed that the NH4+-N removal could reach up to 96% during the steady state period. The modified Boltzmann model fitted in the kinetic analysis of Feammox (R2 = 0.99632), which could explain the NH4+-N removal and NO3−-N generation. In summary, exploring the cultivation process and results of Feammox is crucial for NH4+-N removal performance and provides data support for constructing the Feammox process as the mainstream wastewater treatment process.

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Fe2O3: A Kind of Starter for Autotrophic Nitrogen Removal Systems

  • 会议论文

  • 发表日期：

    2025年

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  • Qi Wang,
  • Linjie Wang,
  • Yongzhi Chen

摘要

Fe3+ reduction-coupled anaerobic ammonia oxidation (Feammox) bacteria are a type of autotrophic nitrogen-removing bacteria discovered in recent years. In this study, Fe2O3 was added to the anammox system as a kind of fast starter for the Feammox, and the incubation process, nitrogen removal performance, and kinetic simulation process of Feammox were investigated. The data showed that the NH4+-N removal could reach up to 96% during the steady state period. The modified Boltzmann model fitted in the kinetic analysis of Feammox (R2 = 0.99632), which could explain the NH4+-N removal and NO3−-N generation. In summary, exploring the cultivation process and results of Feammox is crucial for NH4+-N removal performance and provides data support for constructing the Feammox process as the mainstream wastewater treatment process.