典型重金属离子对厌氧氨氧化脱氮体系的影响研究进展  

RESEARCH PROGRESS ON EFFECTS OF TYPICAL HEAVY METAL IONS ON ANAMMOX DENITRIFICATION SYSTEM

作　　者：王安琪[1,2] 蔡祥 夏四清 WANG An-qi;CAI Xiang;XIA Si-qing(State Key Laboratory of Pollution Control and Resource Reuse,School of Environmental Science and Engineering,Tongji University,Shanghai 200092,China;Shanghai Institute of Pollution Control and Ecological Security,Shanghai 200092,China)

机构地区：[1]同济大学环境科学与工程学院污染控制与资源化国家重点实验室,上海200092 [2]上海污染控制与生态安全研究院,上海200092

出　　处：《环境工程》2021年第2期53-60,81,共9页Environmental Engineering

基　　金：国家重点研发计划项目(课题)(2017YFC0403403)。

摘　　要：厌氧氨氧化工艺具有无须外加碳源、产泥量少和能耗低等优势,应用前景较为广阔。但厌氧氨氧化菌对环境条件敏感,阻碍了该工艺的推广应用。重金属离子是影响厌氧氨氧化工艺的重要环境影响因子,且不同种类、价态和浓度的重金属离子造成的影响存在较大差异。选取含氮废水中的4种典型重金属离子(Cu^(2+)、Zn^(2+)、Fe^(2+)和Fe^(3+)),综述了其对厌氧氨氧化工艺脱氮效能的长短期影响,并从抗性基因和功能基因响应、胞外聚合物生成与微生物群落动态3个方面系统分析了重金属离子作用于厌氧氨氧化微生物菌群的内在机制。旨在全面分析重金属离子对厌氧氨氧化工艺及微生物菌群的影响,为提升厌氧氨氧化生物脱氮效能提供参考依据。Anammox(anaerobic ammonium oxidation)is regarded as the most promising biological denitrification technique,due to its advantages such as no necessity for additional carbon,low sludge yield and low energy consumption.However,anammox bacteria are highly sensitive to external environmental factors,which hinders its large-scale application.Heavy metal ions in industrial sewage are important environmental factors affecting the biological denitrification efficiency of anammox system.Moreover,the effect of heavy metal ions with different types,concentrations and valence state varies significantly.In this paper,the recent research results on the long and short term impact of typical heavy metal ions(Cu^(2+)、Zn^(2+)、Fe^(2+)and Fe^(3+))on anammox denitrification system were comprehensively summarized,and the internal mechanism of heavy metal ions acting on anammox microbial community was also systematically analyzed,to provide reference for improving denitrification efficiency.

关 键 词：重金属离子 厌氧氨氧化工艺 抗性基因 胞外聚合物 微生物群落 

分 类 号：X703[环境科学与工程—环境工程]