硝酸盐依赖性亚铁氧化脱氮技术研究进展  

Research progress of nitrate-dependent ferrous oxidation denitrification technology

作　　者：薛佳慧 李彦宇 邱旭 肖举强[1] 李杰[1] 宋广清 XUE Jia-hui;LI Yan-yu;QIU Xu;XIAO Ju-qiang;LI Jie;SONG Guang-qing(School of Environmental and Municipal Engineering,Lanzhou Jiaotong University,Lanzhou 730070,China;Technical Centre for Soil,Agriculture and Rural Ecology and Environment,Ministry of Ecology and Environment,Beijing 100012,China;School of Architecture and Civil Engineering,Xihua University,Chengdu 610097,China)

机构地区：[1]兰州交通大学环境与市政工程学院,甘肃兰州730070 [2]生态环境部土壤与农业农村生态环境监管技术中心,北京100012 [3]西华大学建筑与土木工程学院,四川成都610097

出　　处：《中国环境科学》2024年第12期6668-6680,共13页China Environmental Science

基　　金：国家自然科学基金资助项目(51768032)。

摘　　要：硝酸盐依赖性亚铁氧化(NDFO)作为一种新型自养反硝化技术,因独特的经济优势和友好的环境效益可以有效解决异养反硝化遇到的瓶颈问题,并为低碳氮比(C/N)废水的处理提供了新的思路.本文概述了NDFO技术的应用进展,总结了不同NDFO功能微生物的特性,同时,从化学和生物作用两个角度揭示了NDFO的内在反应机理.此外,还分析了温度、pH值、Fe/N、有机碳源和阴阳离子等外部因素影响NDFO性能的潜在机制,并讨论了Fe(Ⅲ)矿物对NDFO过程的影响以及抑制细胞结壳的策略.最后,提出了NDFO技术存在的缺陷和面临的挑战,展望了未来的研究方向.Nitrate-dependent ferrous oxidation(NDFO)has emerged as a promising autotrophic denitrification technology,effectively addressing key limitations in wastewater treatment,particularly in systems with a low carbon-to-nitrogen(C/N)ratio.NDFO presents substantial economic and environmental advantages,making it an attractive solution for low C/N wastewater treatment.This review critically examines recent advancements in NDFO technology,emphasizing the functional characteristics of various NDFO microorganisms and elucidating the internal reaction mechanisms from both chemical and biological perspectives.We comprehensively analyze the influence of external factors,including temperature,pH,Fe/N ratio,organic carbon sources,and the presence of cations/anions,on the performance of NDFO.Additionally,we explore the role of Fe(Ⅲ)minerals in the NDFO process and discuss strategies to mitigate cell crust formation.Finally,this paper identifies the existing challenges and limitations of NDFO technology and offers strategic directions for future research.

关 键 词：生物脱氮 自养反硝化 细胞结壳 反应机理 功能微生物 

分 类 号：X703.5[环境科学与工程—环境工程]