Xia Qing, Qiu Qingzhen, Cheng Jun, Huang Wenli, Yi Xuesong, Yang Fei, Huang Weiwei
Key Laboratory of Agro-Forestry Environmental Processes and Ecological Regulation of Hainan Province, School of Environmental Science and Engineering, Hainan University, 58 Renmin Avenue, Meilan District, Haikou 570228, China.
MOE Key Laboratory of Pollution Process and Environmental Criteria, College of Environmental Science and Engineering, Nankai University, 94 Weijin Road, Nankai District, Tianjin 300071, China.
Bioresour Technol. 2025 Mar;419:132041. doi: 10.1016/j.biortech.2025.132041. Epub 2025 Jan 5.
Iron is the most abundant redox-active metal on Earth. The microbially mediated iron redox processes, including dissimilatory iron reduction (DIR), ammonium oxidation coupled with Fe(III) reduction (Feammox), Fe(III) dependent anaerobic oxidation of methane (Fe(III)-AOM), nitrate-reducing Fe(II) oxidation (NDFO), and Fe(II) dependent dissimilatory nitrate reduction to ammonium (Fe(II)-DNRA), play important parts in carbon and nitrogen biogeochemical cycling globally. In this review, the reaction mechanisms, electron transfer pathways, functional microorganisms, and characteristics of these processes are summarized; the prospective applications for carbon and nitrogen removal from wastewater are reviewed and discussed; and the research gaps and future directions of these processes for the treatment of wastewater are also underlined. This review is expected to give new insights into the development of economic and environmentally friendly iron-based wastewater treatment procedures.
铁是地球上含量最丰富的具有氧化还原活性的金属。微生物介导的铁氧化还原过程，包括异化铁还原（DIR）、与Fe(III)还原耦合的铵氧化（Feammox）、依赖Fe(III)的甲烷厌氧氧化（Fe(III)-AOM）、硝酸盐还原Fe(II)氧化（NDFO）以及依赖Fe(II)的异化硝酸盐还原为铵（Fe(II)-DNRA），在全球碳和氮生物地球化学循环中发挥着重要作用。在本综述中，总结了这些过程的反应机制、电子转移途径、功能微生物及其特征；综述并讨论了其在废水碳氮去除方面的潜在应用；同时也强调了这些废水处理过程的研究差距和未来方向。本综述有望为经济环保的铁基废水处理工艺的发展提供新的见解。
