短程硝化过程中NO2N高效富集的工艺条件实验研究吕永涛

61Vol．6No．120121ChineseJournalofEnvironmentalEngineeringJan．2012NO－2-N11*23111．7100552．7120003．210019SBR104130℃、pH7．5、nHCO－3/nNH+4-N1。SBR250mg/L90%85%103∶1。SBRX703A1673-9108201201-0077-04EffectsofoperatingconditionsonshortcutnitrificationprocessLüYongtao1WangLei1WuHongya2ChenZhen3WangTao1WangZhiying11．SchoolofEnvironmentalandMunicipalEngineeringXi’anUniversityofArchitectureandTechnologyXi’an710055China2．XianyangYuWenCivilEngineeringCo．Ltd．Xianyang712000China3．JiangsuSunnyEnvironmentalProtectionEngineeringCo．Ltd．Nanjing210019ChinaAbstractToprovidesufficientnitriteaselectronacceptorforAnammoxprocesstheeffectsofoperatingconditionsonshortcutnitrificationwereinvestigatedinanSBR．Culturemediumwasusedforenrichmentofam-monium-oxidizingbacteriaAOBinoculatedfromSBRtheAOBandnitrite-oxidizingbacteriaNOBwaspresentinaquantitativeratioof1041．Operatingconditionsofshortcutnitrificationwereinvestigatedtheopti-maltemperatureof30℃pHof7．5～8andnHCO－3/nNH+4-Nof1weregainedforthegrowthofAOB．TheSBRwasoptimizedaccordingtotheoptimalconditionsand90%ofammoniaremovalefficiencyandabove85%ofnitriteaccumulationefficiencywerereachedrespectivelywhentheinfluentammoniaconcentrationwas250mg/L．ThequantityofAOBandNOBwasinaratioof103∶1．SufficientnitritewasprovidedasstableelectronacceptorforthesubsequentAnammoxprocessforhighammoniaconcentrationwastewatertreatment．KeywordsshortcutnitrificationSBRinfluencefactorsammonium-oxidizingbacteria5110836711JK075911JS0562010－07－052010－10－081980～。[e-mail]*[e-mail]1NH+4+NO－2→N2+2H2O、23。-45。6SBR70%6。。11.1SBR6L4．6L45min320min30min5min。1．2SBRNH4Cl、NaHCO3K2HPO4KH2PO421．2g/L53.6g/L0.5mL/L。1．31．3．1SBR。1．3．27NaCl0.3gMg2SO4·7H2O0.14gFeSO4·7H2O0.03g0.1mol/LKH2PO410mLNH42SO40.66g1L0.1MPa30min。1．3．31mLSBR100mL250mL30℃、120r/min1mL。78。1．49N-1--。10MPN。1．52mL100mL120r/min、。22．1MPN104∶1、pHnHCO3－/nNH+4-N。2．1．1pH30±2℃10mg/L1%pH6、6.5、7、7.5、88.5pH1。1pHFig.1EffectofpHonnitritation1pHpH7.5。pH12。pH。2．1．2pH7．5、10mg/L20、25、30、3540℃871NO－2-N2。2Fig.2Effectoftemperatureonnitritation220～30℃30℃。2．1．3HCO－3/NH+4-N30±2℃pH7.55mg/L0.5∶1、1∶1、1.5∶12∶1C/N3。3Fig.3EffectofNaHCO3onnitritation3nHCO－3/nNH+4-NnHCO－3/nNH+4-N1。nHCO－3/nNH+4-N=2。NH+4-N2molHCO－3/1molNH+4-NnHCO－3/nNH+4-N=1∶150%NH+4-N。Gali5nHCO－3/nNH+4-N=1。2．2SBR。4。4Fig.4Variationofnitritationperformanceunderdifferentoperatingconditions41～14d60%～70%。15d85%90%MPNSBR103∶1。SBR250mg/LNH+4-N11NH+4-NNO－2-N86%97%TN0.488kgN/m3·d。31、pHnHCO－3/nNH+4-N30℃pH7.5nHCO－3/nNH+4-N1。2SBR250mg/L90%85%976103∶1。1StrousM．VanGervenE．ZhengP．etal．AmmoniumremovalfromconcentratedwastestreamswiththeAnaerobicAmmoniumOxidationANAMMOXprocessindifferentreactorconfigurations．WaterResearch19973181955-19622AhnY．H．ChoiH．C．Autotrophicnitrogenremovalfromsludgeliquidsinupflowsludgebedreactorwithexternalaeration．ProcessBiochemistry20064191945-19503SliekersA．O．DerworthN．GomezJ．L．C．etal．Completelyautotrophicnitrogenremovalovernitriteinonesinglereactor．WaterResearch200236102475-24824HellingaC．SchellenA．MulderJ．W．etal．TheSHARONprocessAninnovativemethodfornitrogenre-movalfromammonium-richwastewater．WaterSci．Techn-ol．19983799135-1425GaliA．DostaJ．vanLoosdrechtM．C．M．etal．Twowaystoachieveananammoxinfluentfromrealrejectwatertreatmentatlab-scalePartialSBRnitrificationandSHAR-ONprocess．ProcessBiochemistry2007424715-7206．．200717110-114ShiY．X．NiJ．R．Studyonfactorsaffectingshortcutni-trificationofmaturelandfillleachate．ChineseJournalofEnvironmentalEngineering200717110-114inChi-nese7．．2002146348-350ZhangL．H．KuangZ．S．ZhangB．L．Researchonenrichmentandisolationtechniquesforhigh-efficientnitro-bacteria．ActaAgriculturaeZhejiangensis2002146348-350inChinese8．．2006265366-369ZhangH．LiP．J．WangX．etal．Screeningandcul-tivationconditionsoftwoNitrosobacteriastrains．Environ-mentalProtectionofChemicalIndustry2006265366-369inChinese9．4．200510．．200211．．2007275753-757LüY．T．DongL．X．YeX．D．etal．RealizationofANAMMOXinarotatingbiologicalcontactor．ActaScien-tiaeCircumstantiae2007275753-757inChinese08