短程硝化反应器的快速启动与运行特性吴伟伟

ISSN1000-0054CN11-2223/N　()JTsinghuaUniv(Sci&Tech),200646122006,Vol.46,No.1232/332077-2080　短程硝化反应器的快速启动与运行特性吴伟伟1,　王舜和2,　王建龙1,　汪群慧2(1.,100084;2.,150090):2005-12-20:(59978020):(1982-),(),,。:,,E-mail:[e-mail]　:为了探讨快速启动和运行特性,以硝化污泥接种序批式反应器,在纯自养条件下利用短程硝化处理高NH+4-N废水。实验结果表明,控制溶解氧(dissoledoxygen,DO)浓度为0.5mg/L、游离氨浓度11.8～49.1mg/L时,反应器的启动在第13d完成。在曝气量为800mL/min时,利用pH与DO的变化趋势来判断氨氧化进程,控制每周期曝气时间为6.0h,反应器稳定运行了101个周期。NH+4-N平均去除率为82.6%,NH+4-N去除负荷最大为0.97kg/(m3d),NO-2-N平均累积率达97.2%,NO-3-N浓度小于10mg/L。在反应器中利用纯自养微生物可以长期稳定地实现短程硝化反应。:短程硝化;溶解氧;游离氨;序批式反应器;曝气:X703.3:A:1000-0054(2006)12-2077-04Start-upandoperationofpartialnitrificationinasequencingbatchreactorWUWeiwei1,WANGShunhe2,WANGJianlong1,WANGQunhui2(1.LaboratoryofEnvironmentalTechnology,InstituteofNuclearandNewEnergyTechnology,TsinghuaUniversity,Beijing100084,China;2.DepartmentofEnvironmentalScienceandEngineering,HarbinInstituteofTechnology,Harbin150090,China)Abstract:Therapidstart-upandoperationofasequencingbatchreactorforpartialnitrificationwereinvestigatedtotreathighammoniumwastewater.Thereactorwasinoculatedwithnitrifyingsludgeandthepartialnitrificationrealizedbyusingcompleteautotrophicbacteria.Theexperimentalresultsshowedthatfordissolvedoxygen0.5mg/Landfreeammoniaconcentrations11.8～49.1mg/L,thestart-upcouldbecompletedwithin13days.ThepHanddissolvedoxygenconcentrationswerevariedtomonitortheeffectontheammoniumoxidationprocesswithstablepartialnitrificationmaintainedfor101cycles.TheNH+4-Nremovalefficiencywas82.6%,NO-2-Naccumulationratereached97.2%andthemaximumNH+4-Nremovalloadingwas0.97kg/(m3d).Thepartialnitrificationwasstableforlong-termoperationwithcompleteautotrophicbacteriainthereactor.Keywords:partialnitrification;dissolvedoxygen(DO);freeammonia(FA);sequencingbatchreactor(SBR);aeration,。,25%,40%,300%[1]。,(、)。,。、(dissoledoxygen,DO)、(freeammonia,FA)、pH、,DO1.5mg/LFA10～20mg/L[2,3]。,DO,。FA,NH+4-N,SHARON(singlereactorhighactivityammoniaremovalovernitrite),NH+4-N100mg/L[4]。,FA,[5]。(sequencingbatchreactor,SBR),SBRSHARON。1　材料与方法1.1　1。SBR15.0cm,50.0cm,8.12L。(30±0.5)℃。,DOI:10.16511/j.cnki.qhdxxb.2006.12.032。NaHCO3pH7.0～8.5。SBR8h,、、0.5h、6.0h、1.0h0.5h。SBR50%,24h2～3。1　SBR1.2　:(NH4)2SO4,2.36g/L;NaHCO3,6.00g/L(CaCO3()NH+4-N7.14);CaCl2,0.20g/L;MgSO47H2O,0.03g/L;KH2PO4,0.16g/L;1.0ml/L(:0.20g/LMnCl24H2O,0.11g/LNaMoO42H2O,0.20g/LCoCl26H2O,0.10g/LZnSO47H2O,0.04g/LNiCl26H2O0.24g/LFeCl36H2O)。,NO-3-N32.8～47.9mg/L。。(SS)(VSS)m(VSS)/m(SS)0.49,(SVI)126mL/g。VSS2.39g/L。1.3　NH+4-N:;NO-2-N:N-(1-)-;NO-3-N:;DOThermoOrion850A;pHWTWpH526;OUR[6];(SS)(VSS)[7]。2　结果与讨论2.1　,FADO。NH+4-N250～340mg/L,pH7.7～8.5,FA11.8～49.1mg/L。SBR200mL/min,DO0.5mg/L。(2a),,NH+4-N,NO-2-N。4d,100～200mg/L,NO-3-N。NH+4-N,,NH+4-N100mg/L,,。NH+4-N,8d,(m(O2)/[m(MLVSS)t])0.73mg/(gmin)2.32mg/(gmin),MLVSS;0.96mg/(gmin)0.08mg/(gmin)。,,,,SVI8d204mL/g。13d,800mL/min,6.0h。,NH+4-N85%,2b。NO-2-NNO-3-N2c、2d。,。,DO0.5mg/LFA(11.8～49.1mg/L),,,。2.2　SBR,DO、pH,3。,DOpH。,DO、pH,6.0h。,pH、DOSBR,[8]。2078()2006,46(12)2　SBR3　2.3　,NH+4-N85%。7～9、26～38、49～60、74～77,,NH+4-N,NH+4-N90%。101,(227.6±1.0)mg/LNH+4-N,82.6%,NH+4-N51.3mg/L,NH+4-N0.97kg/(m3d);NO-2-N(202.2±1.0)mg/L,NO-3-N10mg/L,2c、d。NH+4-NNO-2-N,(m(NO-2-N)/m(NO-x-N))97.2%。NO-3-N,20～50mg/L,NO-3-N。,:2、2231,(SVI)97、60、58mL/g,50mL/g。SBRNH+4-N,NO-2-N2079,:　。SHARON,,NH+4-N100mg/L[4]。。,,,;,[9]。,。NH+4-N,,。NH+4-N,SBRpHDO,,,。SHARON,DO,1.7～2.5mg/L[2,4],:1)NH+4-N,,;2)NH+4-N,,DO,,。3　结　论1),0.5mg/L11.8～49.1mg/L,13d;2),NH+4-N,pHDO。NH+4-N51.3mg/L,101,NH+4-N82.6%,NH+4-N0.97kg/(m3d),NO-2-N97.2%。,。　(References)[1]PolliceA,TandoiV,LestingiC.Influenceofaerationandsludgeretentiontimeonammoniumoxidationtonitriteandnitrate[J].WaterResearch,2002,36(10):25412546.[2]WANGJianlong,YANGNing.Partialnitrificationunderlimiteddissolvedoxygenconditions[J].ProcessBiochemistry,2004,39(10):12231229.[3]ChungJ,ShimH,LeeYW,etal.Comparisonofinfluenceoffreeammoniaanddissolvedoxygenonnitriteaccumulationbetweensuspendedandattachedcells[J].EnvironmentalTechnology,2005,26(1):2133.[4],,.[J].(),2005,45(9):12941297.HEShijun,WANGJianlong,ZHAOXuan.Effectsofammoniumconcentrationonthemethanogenicactivityofgranularanaerobicsludge[J].JTsinghuaUniv(Sci&Tech),2005,45(9):12941297.(inChinese)[5]VillaverdeS,Fdz-PolancoF,GarciaPA.Nitrifyingbiofilmacclimationtofreeammoniainsubmergedbiofilters,start-upinfluence[J].WaterResearch,2000,34(2):602610.[6],,,.(OUR)[J].,1999,19(3):225229.WANGJianlong,WULibo,QIXing,etal.Characterizationofnitrificationactivityofactivatedsludgebyoxygenuptakerate(OUR)[J].ActaScientiaeCircumstantiae,1999,19(3):225229.(inChinese)[7]AmericanPublicHealthAssociation.StandardMethodsfortheExaminationofWaterandWastewater[M].20thed.WashingtonDC:WaterEnvironmentFederation.1998.[8]PENGYongzhen,CHENYing,ZENGWei,etal.Nitriteaccumulationbyaerationcontrolledinsequencingbatchreactorstreatingdomesticwastewater[J].WaterSciandTech,2004,50(10):3543.[9]GuisasolaA,JubanyI,BaezaJA,etal.Respirometricestimationoftheoxygenaffinityconstantsforbiologicalammoniumandnitriteoxidation[J].JChemTechandBiotech,2005,80(4):388396.2080()2006,46(12)