摘要
铁(Fe)是地壳中含量第四丰富的元素,其与碳、氮、氧、磷、硫等元素的耦合反应是地球生物化学循环重要的驱动力.近年来,微生物厌氧还原Fe(Ⅲ)耦合氧化铵(NH~+)反应,即厌氧铁氨氧化(Feammox),正逐渐成为生态环境研究中的热点之一.本文重点介绍了Feammox过程中的四种胞外电子传递机制,详细归纳了Feammox在土壤生态系统、水生态系统及污废水处理方面的最新研究进展,分析了影响Feammox的主要因素,并对Feammox未来的研究方向进行了展望.
Iron(Fe) is the fourth abundant element in the earth’s crust. The coupling reaction of Fe with other elements(i.e., carbon, nitrogen, oxygen, phosphorus and sulfur, etc) is an important driving force to the global geobiochemical cycle. In recent years, microbial anaerobic reduction of Fe(Ⅲ) coupled with the oxidation of ammonium(Feammox) has been becoming a hotspot in the research field of ecology. For Feammox, four kinds of extracellular electron transferring mechanisms are highlighted in this paper. Otherwise, the latest research progress in Feammox on its ecological significance is summarized after reviewing the published works in soil & water ecosystems and sludge and wastewater treatments. Moreover, the influencing factors of Feammox are discussed and its future research directions are provided.
作者
田莹莹
师东阳
王强
TIAN Yingying;SHI Dongyang;WANG Qiang(Department of Material Science and Engineering,Henan Institute of Technology,Xinxiang,Henan 453003,China;State Key Laboratory of Crop Stress Adaptation and Improvement,Henan University,Kaifeng,Henan 475004,China)
出处
《昆明理工大学学报（自然科学版）》
北大核心
2022年第4期118-126,共9页
Journal of Kunming University of Science and Technology(Natural Science)
基金
河南省科技攻关项目(202102210253,212102310079)
河南省高等学校重点科研项目(21A610003)
河南工学院博士基金项目(9001/KQ1811)。
关键词
厌氧铁氨氧化
电子传递
农田土壤
水环境
废水和污泥
Feammox
electron transportation
agricultural soil
aquatic ecosystem
wastewater and sludge
