SBR短程硝化的启动及稳定运行特性杨辉

201011266JournalofShenyangJianzhuUniversityNaturalScienceNov．2010Vol．26No．62010－06－2005－K2－91973—．1671－2021201006－1199－06SBR121111.1101682.100004．28±1℃pH8.0SBR80～90L/h330min．39NO－2－N94.13%NH+4－N92.7%81NH+4－N131NO－2－N．NH+4－N．SBRX703AStart-UpandSteadyOperationofShort-CutNitrificationinaSequencingBatchReactorYANGHui12CUIHuihui1ZHANGYu1XUYue11.SchoolofMunicipalandEnvironmentalEngineeringShenyangJianzhuUniversityShenyangChina1101682.SchoolofRe-sourcesandCivilEngineeringNortheasternUniversityShenyangChina100004AbstractThepurposeofthispaperistoobtainastart-upofshort-cutnitrificationsystemsfedwithsimulateddomesticwastewateratlowaerationratesandtokeepthesystemoperationstable．Undertheconditionsofatemperatureof28±1℃andapHvalueof8.0theinitialaerationrateandaerationtimewerecontrolledtobe80～90L/hand330minrespectivelyandtheaerationratewasadjustedappropriatelyinthewholeprocessofreactions．Thestart-upofoursystemcanbeachievedafter39cyclesandtheNO－2－NaccumulationandtheNH+4－Nremovalefficiencyreached94.13%and92.7%respectively．Thereafterwedischargedthesludgeafter81cyclesandgraduallyincreasedtheNH+4－Nconcentration．After131cyclestheshort-cutnitrificationsystembecamestableandexhibitedahighcapabilityofNO－2－Naccumulation．Theresultsindicatethatthestart-upcanbeachievedrapidlybyonlyadjustingtheaerationratebutsacrificingthestabilityofsystem．AstablesystemcanbeobtainedbycontrollingaerationtimedischargingsludgeandincreasingNH+4－Ncon-centration．Keywordslowaerationratesshort-cutnitrificationsequencingbatchreactorprocesssimulateddomesticwastewater120026－NO－2－NNO－2－N．－25%40%300%1．NO－2－NNO－2－N2．3－5．6DOSBRDO．7DODO．8．．NH+4－NSBRNO－2－N．11.1SBR15cm50cm10L9.5L．28±1℃．SBR405min5min、330min、60min、10min．2～37L．1.2NH4Cl0.25g/LKH2PO40.16g/LρNaHCO3/ρNH+4－N=120.5g/LCaCl20.2g/LMgSO4.7H2O0.03g/L0.6～1mL．1．1Table1ThewaterqualityinexperimentsρCODCr/mg·L－1ρNH+4－N/mg·L－1ρTP/mg·L－1ρ/mg·L－1CaCO3pH120～50050～1301330～6106．9～8．0．1.3CODCrNH+4－NNO－3－NNO－2－NN－1－－MLSSpHpHDODO．22.110～15℃．28±1℃．NaHCO3pH8.080～90L/hDO0.5mg/L12．1Fig.1Changesinammonianitrogenconcentrations26SBR12012Fig.2Changesinnitratenitrogenconcentrations1、280～90L/h33NH+4－N16.14%NO－2－N92.32%．DOρDO=0.5mg/L．Hanaki9ρDO≤0.5mg/LDONH+4－NDONH+4－N．AOBNOB10DOAOBAOB．pHNH+4－NFA．11FANOB0.1～1.0mg/LAOB10～150mg/L．FANOBAOBNOB．AOBNO－2－NNO－3－N．NH+4－N34120L/hρDO=1.5～2mg/L3NH+4－N62.54%NO－3－NNO－2－NNO－2－N94.86%．ρDO．．ρDONH+4－N．639NH+4－N92.69%NO－2－N94.13%．34．3Fig.3Changesinammonianitrogenconcentrationsafterstart-up4Fig.4Changesinnitratenitrogenconcentrationsafterstart-up3、4120L/h3NO－2－N．42NO－2－N88.53%．1NOB2NH+4－NFANOB3NO－2－NNOB．4312022690～100L/hρDO=0.2～0.4mg/L46NH+4－N97.44%NO－2－N100%NH+4－NNO－2－N．4881NH+4－NNO－2－N．NOBAOB．NO－2－NNH+4－NNO－2－NNO－2－NNO－3－N．NH+4－NNO－2－N．NH+4－NNO－2－NNO－3－N．．、DO．2.2SBR90～100L/hDOpH5．581Fig.5Short-cutnitrificationinthe81threactionperiod5aNH+4－N．90minNH+4－N10mg/L．5b90minρDO0.5mg/LpH．NH+4－NMonod90minNH+4－N＜15mg/L．ρDO．H+H+CO2pHCO2pH．90minDOpH．5NO－2－N140minNO－2－N95.68%NO－3－N5mg/L140min．ρDOAOBNOBDOAOBNOBAOBNOBNO－2－N．90min26SBR1203ρDO．AOB12DONH+4－NNO－2－N．NOBAOB．DONO－2－NNO－3－NNOBDO．DONO－2－N13．DO30min14DO50minNH+4－NNO－2－N．DOpH．ρDODO．2.3330min100min．．Monodv=－dSXdt．1υdS/dtX．15NO－2－N．16NH+4－NNO－2－N．811/3、pH90～100L/h330minNH+4－N6．6Fig.6Thesituationofstableoperation．NH+4－N80%13197%．NO－2－NAOBNOBNH+4－N．NO－2－N97%．．NH+4－NNO－2－N97.5%MLSS3～3.5g/L．．3128±1℃pH8.039NH+4－NNO－2－N94.13%NH+4－N92.7%．2．3DO、pHDOpH．50minNO－2－N120426．4NH+4－NNH+4－NNO－2－N97.5%．1PolliceATandoiVLestingiC．InfluenceofaerationandsludgeretentiontimeonammoniumoxidationtonitriteandnitrateJ．WaterResearch200236102541－2546．2MchmidtISliekersOSchmidMetal．Newconceptsofmicrobialtreatmentprocessesforthenitrogenre-movalinwastewaterJ．FEMSMicrobiologyRe-views2003272481－492．3TatsuoSKazuichiIHajimeIetal．NitrogenremovalfromwastewaterusingsimultaneousnitratereductionandanaerobicammoniumoxidationinsinglereactorJ．JournalofBioscienceandBioengineering20061024346－351．4TamLSTangaTWLauGNetal．ApilotstudyforwastewaterreclamationandreusewithMBR/ROandMF/ROsystemsJ．Desalination20072021/2/3106－113．5．J．200723217－21．HanZhiyingZhuJunDingYingetal．Inflowingwaterstep－by－stepsequencingbatchreactorwhichstrengthenthebiologicalnitrogenJ．ChinaWater＆Wastewater200723217－21．6．J．2004203339－341．ChenYingWangHongchenPengYongzhen．Re-searchstart－upshort－cutnitrificationsystemfedwithsimulateddomesticwastewaterunderlowaerationrateJ．JournalofHarbinUniversityofCommerceNaturalSciences2004203339－341．7．DOJ．200519336－38．HaoChunmingLiFuqinSongYinghaoetal．Re-searchofshort－cutnitrificationunderthelowDOlevelJ．EnergyEnvironmentalProtection200519336－38．8．J．200622930－33．BaiLuWangShuyingGaoShouyou．Short-cutnitri-ficationunderthelowaerationandreal-timecontrolJ．ChinaWater＆Wastewater200622930－33．9HanakiKWantawinCOhgakiS．NitrificationatlowlevelsofdissolvedoxygenwithandwithoutorganicloadinginasuspendengrowthreactorJ．WaterRe-search1990243297－302．10GuisasolaAJubanyIBaezaJAetal．Respirometricestimationoftheoxygenaffinityconstantsforbiologi-calammoniumandnitriteoxidationJ．JournalofChemicalTechnology＆Biotechnology2005804388－396．11GroenewegJSellner