摘要
燃煤发电、金属冶炼、水泥制造、垃圾焚烧等过程中排放的烟气含有大量的氮氧化物(NO_(x)),对生态和人体健康造成严重威胁,需要采用一定的技术手段将烟气中的NO_(x)去除(脱硝)。通过聚焦异养反硝化脱硝技术,探讨其原理及研究进展。异养反硝化脱硝技术依赖异养反硝化微生物的异养反硝化作用,将NO_(x)转化为无害的N2去除。研究分析了反应器类型、填料种类及氧气胁迫对脱硝效率的影响,并总结了好氧异养反硝化技术的最新进展,以期为异养反硝化脱硝技术的进一步应用提供理论支持和实践指导。
Flue gases generated from coal-fired power generation,metal smelting,cement manufacturing,and waste incineration contain large amounts of nitrogen oxides(NO_(x)),which pose serious threats to ecosystems and human health.It is therefore important to adopt effective technological measures to remove NO_(x) from flue gases.This paper focuses on heterotrophic denitrification technology,discussing its principles and research progress.The technology relies on the heterotrophic denitrification activity of microorganisms to convert NO_(x) into harmless nitrogen gas(N_(2)).This paper analyzes the effects of reactor types,packing materials,and oxygen stress on denitrification efficiency,and summarizes recent advancements in aerobic denitrification technology.The aim is to provide theoretical support and practical guidance for the further application of heterotrophic NO_(x) removal technology.
作者
金小军
宋颖
叶剑
李敦柱
邱松凯
邹雨群
Jin Xiaojun;Song Ying;Ye Jian;Li Dunzhu;Qiu Songkai;Zou Yuqun(Tongchuang Engineering Design Co.,Ltd.,Zhejiang,312000;Quzhou Zhejiang University of Technology Ecological Industry Innovation Research Institute,Zhejiang,324400;Zhejiang Quzhou Ecological and Environmental Monitoring Center,Zhejiang,324400;Zhejiang Jinlong Recycled Resources Technology Co.,Ltd.,Zhejiang,324400;Zhejiang A&F University,Zhejiang,311300;Zhejiang University of Technology,Zhejiang,310000)
出处
《当代化工研究》
2025年第10期27-29,共3页
Modern Chemical Research
基金
2023年衢州市科技计划项目碳达峰碳中和专项(项目编号:2023K052)。
关键词
异养反硝化
脱硝
生物反应器
填料
氧气胁迫
heterotrophic denitrification
NOx removal
bioreactors
packing materials
oxygen stress
