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2005,25(2)222~225ChinaEnvironmentalScienceSBR,,,,(,410082)pH(DO).,NaHCO31.75g/L2.50g/L,pH7.6~8.08.8,53%48.8%.60g/(m3⋅d),DO0.5~0.7mg/L,90%.X703A10006923(2005)02022204StudiesondeammonificationprocessinsingleSBRbiofilm.LIAODe-xiang,LIXiao-ming,ZENGGuang-ming,YANGQi,YANGGuo-jing(DepartmentofEnvironmentalScienceandEngineering,HunanUniversity,Changsha410082,China).ChinaEnvironmentalScience,2005,25(2)222~225AbstractTheinfluenceofinorganiccarbonconcentration,pHvalueanddissolvedoxygen(DO)inbiofilmpossessingdeammonificationactionwasstudied.TheNaHCO3concentrationincreasedfrom1.75g/Lto2.50g/L,thepHvalueinthereactionsystemincreasedfrom7.6~8.0toabout8.8,theconversionrateofammoniumnitrogenandtotalinorganicnitrogenremovalratealldecreaseddramaticallyto53%and48.8%respectively.Whentheammonium-nitrogenloadofinputwaterwas60g/(m3⋅d),thebestDOconcentrationshouldbecontrolledat0.5~0.7mg/L.Undertheseconditions,theconversionrateofammonium-nitrogenreachedhigherthan90%.Keywordsdeammonificationnitritationanaerobicammoniumoxidationfreeammonia,C/N(),,.Hippen[1],(1mg/L),70%.Helmer[2],,;,NO2,NH4+,NO2NNH4+NN2.,.C/N,1/3[3],,,.SBR,pHDO.11.1(g/L):NH4+N0.12±0.01,KH2PO40.087,MgSO4⋅7H2O0.3,CaCl20.05.0.5mL/L.(g/L):FeCl3⋅7H2O3.75,CuSO4⋅5H2O0.075,ZnSO4⋅7H2O0.3,CoCl2⋅6H2O0.375,MnCl2⋅2H2O0.3.1.2SBR1,20040831(50478054);(WJ2002101)*..2SBR2232L.1,,(28±1).,120~150r/min.CSTR.8mm×8mm(×),(1).47h,,DO,DO0.5~0.8mg/L.1Fig.1Modelofbiofilmcarrier1.3[4].COD;NH4+N;NO2NN-(1-)-;NO3N.(TIN)[NH4+N]+[NO2N]+[NO3N].22.1SBR,(NaHCO3),pH7.6~8.3(1mol/LHCl1mol/LNaOH),DO0.5~0.8mg/L,.NaHCO35.06g/L[3,5],pH,NaHCO33.0g/L.2,1,(60±5)g/(m3⋅d),40%~50%,.Fig.2InorganicnitrogenandCODremovalinthereactorduringthedomesticationperiod,,COD2,COD,COD,DO0.5~0.8mg/L,,.2,,,[5].DO,DO,,,,.2.22,,,.,NaHCO31.75,2.00,2.50g/L,20d,pH,pH.3,NaHCO31.75g/L,406080100120140160051015202530TIN(mg/L)102030405060051015202530(d)COD(mg/L)22425,90%,74%~88.2%;NaHCO32.0g/L,TIN86.9%74.9%,NaHCO32.50g/L,,TIN53%48.8%.3Fig.3ComparisonofammoniumandTINremovalratesatdifferentbicarbonateconcentrationHCO3,CO2,,HCO3.(CO2)[6]:⋅+⋅+⋅=222333COCOCONHNHNHmaxCKCCKCµµ333NHNHI,NHI,CKK+(1):µ,d1;µmax,d1;CNH3CCO2NH3CO2,g/m3;KNH3KCO2NH3CO2;KI,NH3.(1),CO2,,.,,pH,,.2.3pHpHNaHCO3,NaHCO3,pH(4).4,NaHCO31.75g/L,pH7.6~8.0NaHCO32.50g/L,pH8.7~8.9,.4pHFig.4VariationofpHvalueatdifferentbicarbonateconcentrationpH,pH(FA),(1),FA,FA10mg/L,[7].FAFord[7],NaHCO31.75g/L,FA8.0mg/L;NaHCO32.50g/L,FA37.7mg/L;pH,Jetten[8],pH7.4~8.2.Lee[9],pH7.7~8.6,pH8.6,.020406080100120024681012141618(%)2.50g/L2.00g/L1.75g/L020406080100024681012141618(d)TIN(%)2.50g/L2.00g/L1.75g/L7.47.88.28.69.001020304050(h)pH1.75g/L2.00g/L2.50g/L2SBR2252.4DODO.Helmer[10],,DO,;DO0.7mg/L,,;DO5mg/L,,,.,DO0.5~0.7mg/L,90%,,.,DO0.2~0.3mg/L,,54.6%(5).5DOFig.5EffectsofDOondeammonificationProcess×33.1,,/,,.3.2.NaHCO32.50g/L,pH8.7~8.9,37.7mg/L,,;NaHCO31.75g/L,,90%.3.3DO,,;DO,.DO.120mg/L,DO0.5~0.7mg/L.[1]HippenA,RosenwinkelKH,BaumgartenG,etal.Aerobicdeammonification:anewexperienceinthetreatmentofwastewater[J].Wat.Sci.Tech.,1997,35(10):111120.[2]Helmer-MadhokC,SchmidM,FilipovE,etal.Deammoni-ficationinbiofilmsystems:populationstructureandfunction[J].Wat.Sci.Tech.,2002,46(1-2):223231.[3],,.[J].,2001,22(5):105107.[4].[M].3.:,1989.[5]HelmerC,KunstS,JuretschkoS,etal.Nitrogenlossinanitrifyingbiofilmsystem[J].Wat.Sci.Tech.,1999,39(7):1321.[6]LiXiao-ming,YangQi,ZengGuang-ming,etal.Model-basedevaluationontheconversionratioofammoniumtonitriteinanitritationprocessforammonium-richwastewatertreatment[J].JounalofEnvironmentalScience,2004,16(2):312314.[7]YangShu-Fang,TayJoo-Hwa,LiuYu.Inhibitionoffreeammoniatotheformationofaerobicgranules[J].BiochemicalEngineeringJournal,2004,17(1):41~48.[8]JettenMSM,StrousM,vandePas-SchoonenKT,etal.Theanaerobicoxidationofammonium[J].FEMSMicrobiology,1999,22(5):421437.[9]LeeKuan-Chun,BruceER.EffectsofpHandprecipitationonautohydrogenotrophicdenitrificationusingthehollow-fibermenbrane-biofimreactor[J].WaterResearch,2003,37(7):15511556.[10]HelmerC,TrommC,HippenA,etal.Singlestagebiologicalnitrogenremovalbynitritationandanaerobicammoniumoxidationinbiofilmsystems[J].Wat.Sci.Tech.,2001,43(1):311320.(1978),,,,.2.02040608010012001020304050(mg/L)02040608010012001020304050(h)(mg/L)DO0.5~0.7mg/LDO0.2~0.3mg/L