A promising destiny for Feammox: From biogeochemical ammonium oxidation to wastewater treatment,Science of the Total Environment

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A promising destiny for Feammox: From biogeochemical ammonium oxidation to wastewater treatment
Science of the Total Environment ( IF 8.2 ) Pub Date : 2021-05-26 , DOI: 10.1016/j.scitotenv.2021.148038
Jiaxuan Zhu ₁ , Tian Li ₁ , Chengmei Liao ₁ , Nan Li ₂ , Xin Wang ₁

Affiliation

Ammonium is one of the most common forms of nitrogen that exists in wastewater, and it can cause severe pollution when it is discharged without treatment. New technologies must be developed to effectively remove ammonium because conventional nitrification-denitrification methods are limited by the lack of organic carbon. Anaerobic ammonium oxidation coupled to Fe(III) reduction is known as Feammox, and is a recently discovered nitrogen cycling process. Feammox can proceed under autotrophic or anaerobic conditions and effectively transforms ammonium to stable, innocuous dinitrogen gas, using the ferric iron as an electron acceptor. This method is cost-effective, environmentally friendly, and conducive to joint application with other nitrogen removal reactions in low-C/N municipal wastewater treatments. This review provides a comprehensive survey of Feammox mechanistic investigations and presents studies regarding the functional microorganism colonies. The potential for Feammox to be applied for the removal of nitrogen from various polluted water sources and the combination of the Feammox process with other frontier environmental technologies are also discussed. In addition, future perspectives for removing ammonium using Feammox are presented.

中文翻译：

Feammox 的光明命运：从生物地球化学铵态氮氧化到废水处理

铵是废水中存在的最常见的氮形式之一，未经处理排放会造成严重污染。必须开发新技术来有效去除铵，因为传统的硝化-反硝化方法受到缺乏有机碳的限制。厌氧铵态氮氧化与 Fe（III）还原耦合被称为 Feammox，是最近发现的一种氮循环过程。Feammox 可以在自养或厌氧条件下进行，并使用三价铁作为电子受体，有效地将铵转化为稳定、无害的二氮气体。该方法成本效益高、环境友好，有利于在低 C/N 城市污水处理中与其他脱氮反应联合应用。这篇综述对 Feammox 机制研究进行了全面调查，并介绍了有关功能性微生物菌落的研究。还讨论了 Feammox 用于从各种污染水源中去除氮的潜力，以及 Feammox 工艺与其他前沿环境技术的结合。此外，还提出了使用 Feammox 去除铵态氮的未来前景。

更新日期：2021-05-26

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