常温低氨氮污水生物滤池CANON工艺的实现王俊安

　61　6　　　　　　　　　　　　Vol.61　No.6　20106　　CIESC　Journal　　　June　2010CANON王俊安,李　冬,张　杰,李　占,陶晓晓(,100124):。,(8～25℃)NH+4-N(60～90mg·L-1),,、3,/。,DO,,DO。pH,pH。:;;;;CANON:X703.1　　　　　　:A:0438-1157(2010)06-1528-06RealizationofCANONprocessinbiofilterforwastewaterwithlowammoniaandroomtemperatureWANGJun'an,LIDong,ZHANGJie,LIZhan,TAOXiaoxiao(KeyLaboratoryofBeijingforWaterQualityScienceandWaterEnvironmentRecoveryEngineering,BeijingUniversityofTechnology,Beijing100124,China)Abstract:Biologicalautotrophicdenitrificationbasedonanaerobicammoniumoxidation(ANAMMOX)hasbeenconsideredasthemosteconomicalwayinbiologicalsewagetreatmentprocessesfornitrogenremovalpresently.Usingbio-ceramicfilterwithvolcanicactivity,urbansewagepilotstudywascarriedoutatroomtemperature(8—25℃)undertheconditionoflowNH+4-N(60—90mg·L-1),bychangingtheoperatingconditionssuchasaerationetc.Afterthreestages—nitrificationhangingfilm,preferrednitritebacteriaandculturinganaerobicammonia-oxidizingbacteria,CANON(completelyautotrophicammoniumremovalovernitrite)processisrealizedinbiofilter.TheresultsshowthatDOcontrolcanbethemainfactorforcontrollingreactorstartup.Throughcombinedtreatmentofaerationatthetopofwatercolumninbiofilterandinternalrecyclingoftreatedwaterwithoxygen,thecontrolofDOconcentrationinthebiofilmsystemiseasilyachieved.Furthermore,thereactioncyclecanbejudgedfromthechangeofpHvalueintherunprocessanditssecond-jumpisasignalofendofreactionperiod.Keywords:partial-nitrosification;ANAMMOX;biologicalnitrogenremoval;biofilter;CANONprocess　　2009-12-03,2010-02-03。:(1981—),,。:(50878003);(8092006);(2008ZX07208-003-003,2008ZX07420-004-BJUT001,2008ZX07208-005-003)。　　　Receiveddate:2009-12-03.Correspondingauthor:WANGJun'an,[e-mail]:supportedbytheNationalNaturalScienceFoundationofChina(50878003).　　(anaerobicammoniumoxidation,ANAMMOX)[1-2]/,CO2,。ANAMMOXNH+4-N、NO-2-N,NH+4-N,ANAMMOX。,/,SHARON(singlereactorforhighammoniumremovalovernitrite)[3]-ANAM-MOXOLAND(oxygenlimitedautotrophicnitrificationanddenitrification)[4],SNAP(single-stagenitrogenremovalusingANA-MMOXandpartialnitritation)[5]CANON(completelyautotrophicammoniumremovalovernitrite)[6]。ANAMMOX,(30℃)NH+4-N(100mg·L-1)[7-11],NH+4-N。,/(A/O),,NH+4-N/,ANAMMOX。1　1.1　,1,185mm,3.0m,6.0～8.0mm,1.4m,200mm,200mm,1.0m,,。1.2　A/O,1　Fig.1　Experimentalarrangementschematicdiagramofnitrosificationbiofilter　:CODCr50～100mg·L-1;NH+4-N60～90mg·L-1;NO-2-N1mg·L-1;NO-3-N1mg·L-1;TP0.05～1.00mg·L-1;8～25℃;pH7.5～7.8。,,DO,。1.3　NH+4-N;NO-2-NN-(1-)-;NO-3-N;DOWTWinoLabStirrOxG;pHOAKLONWaterproofpHTestr10BNCpH;CODCr。2　2.1　CANON,,,DO2～4mg·L-1,15d,NO-3-NTN50%,,1,AOB,·1529·　6　　:CANON,,DO,DO(7～8mg·L-1),4.02m·h-1,10,(NH+4-N200mg·L-1,1500mg·L-1)NOB,2,DO,80%,TN,,DO,TN,3,SBR(12h,),TN80%,《》(GB18918—2002)A,CANON。2.2　SBR2.79m·h-1,22.5～23.5℃SBR,NH+4-N、TNCOD,NO-2-N,1～11h2.6～4.0mg·L-1,NO-3-N,pH,。NH+4-N、NO-2-N、NO-3-N、TN、CODpH2。2,NH+4-NTN,,R20.99,5.69mg·L-1·h-14.82mg·L-1·h-1。,NO-2-N,NO-3-N,0.92mg·L-1·h-1,TNNH+4-N,3。,COD,83.55mg·L-129.89mg·L-1,64.2%,4h,8h3.27,,,COD,COD,、,,。,pH,0～1h11～12h,AB2,,NH+4-N,,CO2,pH,1～4h4～11h,CODNH+4-N/。3　NH+4-NTNFig.3　RelationshipofconcentrationchangebetweenNH+4-NandTN2.3　,4.02m·h-1,2.21.44。SBR,6h,2.2·1530·　　　　　61　0.5,TN8.91mg·L-1·h-1,1.85,NH+4-N、NO-2-N、NO-3-N、TN、pH4。4,2.2。NO-2-N1.23～2.62mg·L-1,NH+4-N、TNNO-3-N1h,58.2%、51.8%50.2%,,,DO,NH+4-N、TN,,,1h,,,1～6hNH+4-N6.00mg·L-1·h-1,。,,pH,AB。1,,NH+4-N、NO-2-NNO-3-N70.74、0.98、0.34mg·L-1,20.5～24.0℃,pH7.94～8.16,29.3ml·min-1、0.40m·h-1,NH+4-N、NO-2-NNO-3-N0、0.73、10.17mg·L-1,,,TN2.83mg·L-1·h-1,84.9%。SBR,TN,,,,pH,7.9～8.1,。10～15℃SBR,TN,2d,。,1,,,,:CODCr25～50mg·L-1,NH+4-N0～5mg·L-1,NO-2-N0～1mg·L-1,NO-3-N5～15mg·L-1,TP0.05～1.00mg·L-1,0.01～2NTU,。3　　3.1　CANONDOAOBDONOB[12],DO,AOB,。,,DO,DO,,AOBDO,。,DO,,NH+4-NNO-2-N,ANAMMOX,ANAMMOX,,NH+4-NNO-2-NN2,TN。TNANAMMOX,。,,,,,,TN,NH+4-NNO-2-NNO-3-N,·1531·　6　　:CANON,NH+4-N,TN,TN,。,,,1.20m·h-1,NaNO2ANAMMOXNO-2-N,NH+4-N77.57mg·L-1、NO-2-N83.62mg·L-1、18～21℃11.5h,NH+4-N、NO-2-NNO-3-N47.56mg·L-1、57.10mg·L-16.51mg·L-1,1∶1.20∶0.14,ANAM-MOX1∶1.32∶0.26[13],,pH8.0611.5h8.39,[14-15],,ANAMMOX,TNANAM-MOX,SBR/。3.2　,DO,/。DO,TN,,DO,NOB,NO-3-N,TN。SBR,/。,SBR,,,,、。,SBR,pH,[16-18]。,SBR,pH,pH/,DO。SBR/,NH+4-N,ANAMMOX,/———A/O,、,。4　　(1)DONH+4-N/,,DO。(2)SBRNH+4-N/,pH,pHSBR。(3)NH+4-N,/,,/A/O。References[1]　MulderA,vandeGraafAA,RobertsonLA,etal.Anaerobicammoniumoxidationdiscoveredinadenitrifyingfluidizedbedreactor.FEMSMicrobiologyEcology,1995,16(3):177-183[2]　vandeGraafAA,MulderA,deBruijnP,etal.Anaerobicoxidationofammoniumisabiologicallymediatedprocess.Appl.Environ.Microbiol.,1995,61(4):1246-1251[3]　HellingaC,SchellenAAJC,MulderJW,etal.TheSHARONprocess:aninnovativemethodfornitrogenremovalfromammonia-richwastewater.Wat.Sci.Tech.,1998,37:135-142[4]　HanakiK,WantawinC,OhgakiS.Nitrificationatlowlevelsofdissolvedoxygenwithandwithoutorganicloadinginasuspendedgrowthreactor.WaterResearch,1990,24(3):297-302[5]　FurukawaK,LieuPK,TokitohH,etal.Developmentof·1532·　　　　　61　single-stagenitrogenremovalusinganammoxandpartialnitritation(SNAP)anditstreatmentperformances.WaterScienceandTechnology,2006,53(6):83-90[6]　Str