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23320106POLLUTIONCONTROLTECHNOLOGYVol.23,No.3Jun.,2010NOx, (青岛理工大学环境与市政工程学院,山东青岛 266033) :,,NOx。:;;:X131.1;X511 :ATheMechanismofAerobicDenitrificationandtheOutlookofDealingwithNOxWasteGasPANGDe-hong, LIUZhi-fei(SchoolofEnvironmentalandMunicipalEngineering,QingdaoTechnologicalUniversity,Qingdao,Shandong266033,China)Abstract:Thestudystatusofaerobicdenitrificationathomeandabroadinrecentyearsissummedupandthemechanismofaerobicdenitrificationisintroducedindetailsfromtwoaspectsofmicro-environmentandbiology.Finally,theprospectsandtheexistingshortagesofdealingwithNOxwastegasbyaerobicdenitrificationarepointed.Keywords:NOxwastegas;aerobicdenitrification;mechanism:2009-10-22:(1987—),,,,,。 NO-3、NO-2、NON2,ATP,。,,,NOx[1-3]。,,[4-6]。,,NOx,NOx。1 2080。RobertsonKuenen[4],Thiospkaerapantotropha(Paracoccusdenitrifications[7])、(Pseudomonasspp.)(Alcaligenesfaeca-lis),[4]。,O2NO-3,。,Robertson,:Frette(1997)[8]/l6,,。Pai(1999)[9]3,T6,,NH+4-N、NO-2-N。Bell[10],O2,。Meiberg[11]HyphomicrobiumX。[12-14],O2(20106.NOx·75 ·)[15]。,2004,(Rhodococcus)[8]。※※(TN)※()。,TN70%6。X31,DO、pH[16-19]。[20][21],、。2 ,,。,,。2.1 微环境理论[22,23],。,,。,[24]。,,。DO,、;,,、,,,。,、、,,。2.2 生物学理论2.2.1 ,。Thiosphaerapantotropha,,。Robertson,Thiosphaerapantotropha,,NO-3O2[25,26]。Robertson,“”,,“”,,。,,。Caa3,,。,Wilson[27](1)。,,O2,NO-3,。1:NO3、O2,O2,NO-3。1 2.2.2 ,Thiosphaerapantotropha。、、[28-31]。(1)(nitratereductase,NAR) ,Thiosphaerapantotropha:。,。·76 ·.NOx233。Thiosphaerapantotropha,BellThiosphaerapantotropha,[32]。:①,,;②,,;③,,。,NAR,,,NAR。Stouthamer,NAR(FNR),,,FNR,。,,。(2)(nitritereductase,NIR) 。,cdl。cdlnirs,cd,[33],1,NO,O24,。c,dO2。cdNON2O。nirk,Cu,,NO。StouthamerThiosphoerapantotropha,cdl,[34]。Robertson[35]。,。Moir,Thiosphoerapantotropha,,cdl[36]。,。(3)(nitricoxidereductase,NOR) bc,,NORBb,NORCc。、,。NO,NO。,。,。(4)(nitrousoxidereduc-tase,NOS) ,。,Ⅰ(purple)Ⅱ(pink),Ⅱ[37]。6Cu,2,CuA,CuZ[38]。Bell,,,NO、N2O。Berks[39],。3 NOx,、,:、、。、、,,。,NOx、,NOx,3%～8%。,,,。,NOx,。,20106.NOx·77 ·,,[40],。、,,,。,、,。,,,、、。,,NOx。4 ,,:(1),;(2),;(3),,;(4),,。:;;;;NOx。[][1] SamdamG.MicrobesNoshonNOxinFlueGas[J].ChemicalEngineering,1993,100(10):25-26.[2] JoniMB,WilliamAA,KarenBB.RemovalofNitrogenOxidesfromGasStreamsUsingBiofihration[J].JournalofHazmdousMaterials,1995,41:315-326.[3] BradyDL,WilliamAS.OxygenEffectonThermophilicMicro-bialPopulationsinBiofihersTreatingNitricOxideContainingOff-gasStreams[J].EnvironmentalProgress,2001,20(3):157-165.[4] RobertsonLA,VANNielEDWJ,TorremansROBAM,etal.SimultaneousNitrificationandDenitrificati0ninAerobicChem-ostatCulturesofThiosphaeraPantotropha[J].AppliedandEn-vironmentalMicrobiology,1988,54(11):2812-2818.[5] SchohenE,LukowT,AulingG,etal.ThaureaMechernichensissp.nov.anAerobicDenitrifierfromaLeachateTreatmentPlant[J].IntJSysBacteriol,1999,49:1045-1051.[6] PatureauD,GodonJJ,DabertP,etal.MicrovirgulaAerodenitri-ficansgen.nov.,sp.nov.,aNewGram-negativeBacteriumExhibitingCorespirationofOxygenandNitrogenOxidesUptoOxygen-saturatedConditions[J].IntJSysBacteriol,1998,48:775-782.[7] LukowT,Diekmann.HAerobicDenitrificafionbyaNewlyIsola-tedHeterotrophicBacteriumStramTL1[J].Biotechnologlet-ters,1997,11(19):1157-1159.[8] FretteL,GejlsbjergB,WestermannP.AerobicDenitrifiersIsola-tedfromanAlternatingActivatedSludgeSystem[J].FEMSMi-crobiologyCology,1997,24:363-370.[9] PaiSL,ChongNM,ChenCH.PotentialApplicationsofAero-bicDenitrifiyingBacteriaasBioagentsinWastewaterTreatment[J].BioresourceTechnology,1999,68:179-186.[10] BellLC.FergusonSJ.NitricandNitrousOxideReductasesareActiveUnderAerobicConditionsinCellsofThiosphaeraPanto-tropha[J].EuropeanJournalofBiochemistry,1991,273:423-427.[11] FergusonSJ.DenitrificationanditsContro1[J].AntonievanLeeuwenhoek,1994,66:89-110.[12] ChenF,XiaQ,JuLK.AerobicDenitrificationofPseudomonasAeruginosaMonitoredbyOnlineNAD(P)HFluorescence[J].AppliedandEnvironmentalMicrobiology,2003,69(11):6715-6722.[13] HuL-L(),WangJ-L(),WenX-H(),etal.ImprovementsonBiologicalni.TrogenRemovalUn-derLowDissolvedOxygenConcentration[J].ChineseJournalofAppliedandEnvironmentalBiology(),2003,9(4):444-447(inChinese).[14] TakayaN,CatalanSM,SakaguchiY,etal.AerobicDenitrifica-tionBacteriathatProducedLowLevelsofNitrousOxide[J].AppliedandEnvironmentalMicrobiology,2003,69(6):3152-3157.[15] SuJJ.LiuBY.LiuCY.ComparisonofAerobicDenitrificationUnderHighOxygenAtmospherebyThiosphaeraPantotrophaATCC35512andPseudomonasStutzeriSU2NewlyIsolatedfromtheActiveSludgeofaPiggeryWastewaterTreatmentSys-tem[J].JournalofAppliedMicrobiology,2001,90:457-462.[16] , ,,.[J].,2004,44(6):837-83.[17] ,,.[J].(),2005,20(2):80-83.[18] ,,,.X31[J].,2005,33(7):42-46.[19] ,,,.[J].,2006,38(4):575-577.(下转第84页)·84 ·.233,,,。3 《》:“、,。、,;,、。,。”《》:“、、,,,……,。”“”。,,WECPNL70dB。[][1] HJ/T87—2002,———[S].(上接第77页)[20] , ,,.[J].,2007,1:11-13.[21] ZhouLi-xiang,HuangFeng-yuan,WangShi-mei.IsolationofAerobicDenitrifiersandTheirRolesinSoilNitrogenTrans-formation[J].ActaPathologicalSinica,2006,43(3):430-435.[22] ,,.[J].,1998,24(12):6-9.[23] ,.[J].,2000,6(1):13-15.[24] KlangduenPochana,JurgKeller.StudyofFactorsAffectingSim-ultaneousNitrificationandDenitrification(S