同步硝化反硝化脱氮技术

:2003-03-27.:(:2001E0020M).:(1979.5~),,2002.:.E-mail:[e-mail]吕其军,施永生(,650093):,,.,.,,.:;;;:X172:A:1007-855X(2003)06-0091-05SimultaneousNitrificationandDenitrificationTechnologyLUQi2jun,SHIYong2sheng(FacultyofEnvironmentalScienceandEngineering,KunmingUniversityofScienceandTechnology,Kunming650093,China)Abstract:SimultaneousNitrificationandDenitrification(SND)biodenitrificationtechnologyhasalotofadvan2tagescomparedwiththetraditionaloneinsuchaspectsassavingcarbonsources,decreasingupperaeratingandrealizingsinglestagebioden/trification,thereforetherehasbeenagreatconcernovertheSNDtechnologyintherecentyears.AsurveyismadeonthecurrentresearchstatusofSNDinwastewatertreatmentbothhomeandabroad,andtheprinciples,characteristics,realizationconditionsandinfluencingfactorsofSNDtechnologyareillustrated.AfteranalyzingthelatestapplicationsofSNDtechnology,someunsolvedproblemsanditsprospectsarealsoclarified.Keywords:biologicalnitrogenremoval;SimultaneousNitrificationandDenitrification;ammonia;nitrite0..,40%~60%,50%~60%,0~5%.,,,,.(),,,40%,,.(GB89778-88)15mg/L.0.2mg/L,.,.,,,.,,(SND),,SBR,[1~3].,.,,,.286200312()JournalofKunmingUniversityofScienceandTechnology(ScienceandTechnology)Vol.28No16Dec.20031()().[4]:,DO,,;,,,.,,1.,,.,,,.,,[5].,,,..,,PseudomonasSpp,Alcaligenesfaecalis,ThiosphaeraPantotropho,[6,7].,[7].,,N2O[8].ThomasJ,Gereau:NO-2,N2O,N2ONO-20.3%10%.N2O[9].K.OKADA,.,N2O.,NO-3N2O.N2ON2.,N2.22.1:(1)SND,NO-2NO-3,,,,;(2),75%[10],,;(3)SND(),;(4),.,;(5)SND,OH-H+,pH,,;(6),,,.,,.2.2[11],:(1);(2).[12],,SBR,NO-3-N,NO-2-N1mg/L,,.92()283,,,..,,.:NH+4+32O2NO-2+2H++H2O+$F($F=278.42kJ)NO-2+12NO-3-$F($F=72.27kJ):NH+4+2O2NO-3+H2+2H+-$F($F=351kJ):6NO-3+5CH3OH3N2+CO2-3+4HCO-3+8H2O-$F($F=103kJ),,1g4.57g(3.43g,1.14g),7.07g(CaCO3).0.146g0.019g.1gNO-32.6g,2.47g(3.7gCOD),3.57g(CaCO3)0.45g.3.1(DO)DO,,,DO,,SND.DO,,,.DO,,,,.,DO,,COD,,.[13]DOSND,DO1.0~3.0mg/L,,,DO2mg/L.[14](MBR),DO1mg/L,MLSS8000~9000mg/L,24e,pH7.2,COD,NH3-N523~700~mg/L17.24~24mg/L,COD,NH3-N,TN96%,95%,92%.BruceE.Rittmann,,DO:0.3~0.8mg/L,1.0mg/L,1~2mg/L,0.3~1.5mg/L[15].3.210~20e[16];20~25e,,,25e.25e,[17].3.3,pH;,,pH.,pH.,,pH,,[18].3.4,,.,.936,:,,[19].,;,.[20]:35mg/L,400~1000mg/L,99.5%,(1mg/L).,C/N.3.5pH[21]pH.pH8.0~8.4,pH6.5~8.0,,pH8.0.3.6(),,,.,.[21],,.,3~5d,10~15d.,...4,.[22,23]90%,.Hyungseok[23]).72min,48min,24min,90%.:DO()2.0~2.5mg/L,.HongW[22],10%~50%,ORP,SND.,SND,.[24](2),..,DO0.5~1.0mg/L,COD,,.COD95%,TN80%,TP90%,10%.5pH,.,,.,,,.,:(1),,,,,DO,NH3-N,NO-x-N,,;(2),94()28.:.,[24](500Lm)[11]SND.,,,;(3),,,.,,,.:[1]MasudaS,WatanableY,IshiguroM.BiofilmPropertiesandSimultaneousNitrificationandDenitrificationinAerobicRotatingBiologicalContactors[J].Wat.Sci.Tech.,1991,23(12):1355~1363.[2]MunchEV,LantP,KellerJ.SimultaneousNitrificationandDenitrificationinBench-scaleSequencingBatchReactors[J].Wat.Res.,1996,30(2):277~284.[3]DaiggerGT,LittletonHX.Orbal/[J].,1999,15(3):1~7.[4],,.[J].,2001,14(1):33~35.[5],.[M].:,1998.[6]RobertsonLA,VanNeilEWJ,eaal.SimultaneousNitrificationandDenitrificationinAerobicChemostatCulturesofThiosphaeraPantotropha[J].AppliedEnvironmentalMicrobiology,1988,54(1):2812~2818.[7]VanNeilEWJ.NitrificationbyHeterotrophicDenitrifiersandItsRelationshiptoAutotrophicNitrification.PhDThesis,DelftUniversityofTechnology,Delft,1991.78~80.[8]ThomasJ,Gorear.ProductionofNO-2andN2ObyNitrifyingBacteriaatReducedConcentrationofOxygen[J].Appl.Environ.Microbio,1980,(9):1324~1332.[9]OKADAK.AMechanismforBiologicalDenitrificationinAeratedLagoonSystem[J].WaterPollutionControlinDevelopingCountries,1978,(2):175~181.[10]AbelingU,SeyfriedCF.Anaerobic-aerobicTreatmentofHigh-strengthAmmoniaWastewater-nitrogenRemovalViaNi2trite[J].Wat.Sci.Tech.,1992,26(5~6):1007~1015.[11].[J].,2002,(2):26~28.[12],,.[J].,2003,(2):40~42.[13],,.DO[J].,2003,(2):8~10.[14],,.MBRDO[J].,2001,(6):10~14.[15]RittmannBruceE,LangelandWayneE.SimultaneousDenitrificationwithNitrificationinSingle-channelOxidationDitches[J].JournalWPCF,1985,57(4).[16]BelmelleB,etal.StudyofFactorsControllingNitriteBuild-upinBiologicalProcessesforWaterNitrification[J].Wat.Sci.Tech.,1992,26(5~6):1017~1025.[17]YangL,AllemanJE.InvestigationofBatchwiseNitriteBuild-upbyanEnrichedNitrificationCulture[J].Wat.Sci.Tech.,1992,26(5~6):997~1005.[18]MogensHenze,.[M]..:,2000.49~62.[19]KellerPoclansK.StudyofFactorsAffectingSimultaneousNitrificationandDenitrification(SND)[J].Wat.Sci.Tech.,1999,36(6):61~68.[20],,./(SND)[J].,2001,(4):17~20.[21],.[M].:,2000.214~222.[22]ZhaoHongW,MavinicDonaldS,WilliamKOldham(1999).ControllingFactorsforSimultaneousNitrificationandDenitrifi2cationinaTwo-stageIntermittentAerationProcessTreatingDomesticSewage[J].Wat.Res.,1999,33(4):971~978.[23]HyungseokYoo,Kyu-HongAhn.NitrogenRemovalfromSyntheticWastewaterbySimultaneousNitrificationandDenitrifica2tion(SND)ViaNitriteinanIntermittently-aeratedReactor[J].Wat.Res.,1999,33(1):145~154.[24],,.[Z].),1997.1~6.956,: