铁对废水微生物脱氮的影响研究进展  

Research progress on the effects of iron on microbiological nitrogen removal in wastewater

作　　者：吕冉 李彬 肖盈 张靖雯 麦裕良 LV Ran;LI Bin;XIAO Ying;ZHANG Jingwen;MAI Yuliang(Guangdong Provincial Key Laboratory of Industrial Surfactant,Guangdong Research Institute of Petrochemical and Fine Chemical Engineering,Guangzhou 510665,Guangdong,China)

机构地区：[1]广东省石油与精细化工研究院广东省工业表面活性剂重点实验室

出　　处：《化工进展》2020年第2期709-719,共11页Chemical Industry and Engineering Progress

基　　金：广东省科学院建设国内一流研究机构行动专项（2019GDASYL-0301002）;广东省科学院实施创新驱动发展能力建设专项（2017GDASCX-0856,2017GDASCX-0116）;广东省自然科学基金（2017A030310387）

摘　　要：微生物脱氮是一种经济有效的治理水体氮污染的手段。目前微生物脱氮过程主要有厌氧氨氧化、硝化、反硝化及同时硝化反硝化等。铁是环境中普遍存在的金属元素,也是微生物所需的重要微量元素之一。在微生物脱氮系统中,铁盐或者含铁固体化合物等的投加会对微生物及脱氮工艺过程等产生一定的影响,且对于不同种类的微生物与不同的脱氮工艺,铁所产生的影响也将不同。本文全面综述了近些年的研究报道中铁对厌氧氨氧化、硝化、反硝化及同时硝化反硝化等不同脱氮过程中含氮污染物去除效果的影响,铁与脱氮微生物的酶活性、电子传递、增殖富集及脱氮反应器中生物膜、污泥絮体及颗粒形成等之间的作用关系,旨在全面理解铁对微生物脱氮系统的作用与内在机制,为实现利用铁强化微生物脱氮过程、提高微生物脱氮效率提供借鉴。Microbiological nitrogen removal is an economical and effective method for nitrogen pollution control in water.Microbial nitrogen removal processes,at present,mainly contain anammox,nitrification,denitrification,simultaneous nitrification and denitrification and so on.Iron is a ubiquitous metallic element in environment and also one of the important trace elements for microorganisms.In microbiological nitrogen removal systems,the addition of iron salts or iron-containing solid compounds will have certain impacts on microorganisms and the nitrogen removal processes,and such impacts of iron differ for different microorganisms and nitrogen removal processes.Here,the effects of iron on the removal of nitrogen-containing pollutants by different nitrogen removal processes including anammox,nitrification,denitrification and simultaneous nitrification and denitrification,as well as the relationship between iron and enzyme activity,electron transfer,proliferation and enrichment of nitrogen removal microorganisms,and formation of biofilm,floc and granule in biological reactor for nitrogen removal,are comprehensively reviewed.This will help to comprehensively understand about the role of iron in microbial nitrogen removal systems and the mechanism involved,and provide a reference for the enhancement of microbial denitrification processes and improvement of microbial denitrification efficiency by the addition of iron.

关 键 词：铁 微生物脱氮 过程强化 作用机制 

分 类 号：X52[环境科学与工程—环境工程]