不同pH条件下短程硝化序批实验和数学模拟徐婷

106Vol．10No．620166ChineseJournalofEnvironmentalEngineeringJun．2016pH121*1．2250002．210029pHSBＲpH。MonodpHAOBNOBAOBNOB。MATLAB。SＲT6d1.5mgO2/LpH7.3～8。pHSBＲX703A1673-9108201606-2840-07DOI10．12030/j．cjee．201512198ExperimentalinvestigationandmathematicalsimulationofpartialnitrificationinbatchreactorunderdifferentpHXuTing1WangLi2WuJun11．SchoolofEnvironmentalScienceandEngineeringYangzhouUniversityYangzhou225000China2．JiangsuProvinceHydrologyandWaterＲesourcesInvestigationBureauNanjing210029ChinaAbstractToinvestigatetheeffectofpHonpartialnitrificationkineticsbatchtestswithartificiallypre-paredammoniumnitrogenwastewaterwereconductedinsequencingbatchreactorSBＲunderdifferentpHcon-ditions．TheeffectofpHonthegrowthratesofammoniumoxidationbacteriaAOBandnitriteoxidationbacte-riaNOBwasanalyzedandthemathematicalmodelforAOBandNOBgrowthwasestablishedbasedontheMonodequation．ThenfittedthemodeltothemeasureddatabyMATLABsoftwareandthesimulationresultsweregood．Afterthatthemodelwasusedtopredictthestartupofpartialnitrificationthepredictionresultsshowthatshort-cutnitrificationcouldbeachievedontheconditionofsludgeretentiontimeSＲTof6ddissolvedox-ygenDOof1．5mg/LandpHof7.3to8．KeywordsnitritationpHSBＲkineticsmathematicalmodel514784102015－12－262016－01－261991—。[e-mail]*[e-mail]、、1。2。pH、、。pHpHpH3pHFAFAAOBNOB4AOBNOB。pHpHAOBNOB5。pHAOBNOB。6pH11.12SBＲAB。21cm19.5cm40cm8L。10cm。PIDABDO3mg/L。10min→180min→40min→10min50%6。1。1Fig.1Experimentalcontroldevice1.2CASS。4L。DO3mg/LSＲT20dAOBNOB。25～30℃。NaHCO3、NH4Cl、KH2PO4。NaHCO3pH12gNaHCO3/g。NH+4-N40mg/LpH7.8～8.2。。NH+4-NNO－2-NN-1--NO－3-NDOHACH-HQ30dpHPHB-4。1.3pH。2AB30min4LAB4L24LNH+4。2。1HClNaOHA、BpH7.5±0.59.0±0.5DO4.0mg/L25℃。NH+4-N13mg/L624mgNaHCO3。15minNH+4-NNO－2-NNO－3-NpH。2A、BpH8±0.5pHHClNaOH。NH+4-N8mg/L35mg/L384mg1680mgNaHCO315minNH+4-NNO－2-NNO－3-NpH。2pHHClNaOH。1.4pHAOBNOBF/MOUＲAOBNOBμAOBμNOBd－16。DONH4ClNH+4-N60mg/LOUＲNH1OUＲNHtOUＲ0NH=etμAOB－bAOB1μNOBNaNO2NO－2-N60mg/LOUＲNO22OUＲNO2tOUＲ0NO2=etμNOB－bNOB2bAOBbNOBμAOBμNOB5%12μAOBμNOB。1482101.5。22AOBNOB7。1AOB、NOB。1YAOBYNOBAOBNOBiXB。XAOBXNOBAOBNOBSNO2、SNO3、SNH4NO－2-NNO－3-N、NH+4-N。1Table1Processkineticsandstoichiometryfortwo-stepnitrificationASM1modelXIXAOBXNOBSOSNO2SNO3SNH4AOB—1—1－3.43YAOB1YAOB—－1YAOB－iXB①NOB——11－1.14YNOB－1YNOB1YNOB－iXB②AOBfp－1—fp－1———③NOBfp—－1fp－1———④12。ASM1823AOBpHNOBFA。KOAOBKONOBKNHKNO2AOBNOB。pHABNH+4-NNO－2-NNO－3-NpHAOB、NOB。2Table2Ｒeactionratemodefortwo-stepnitrificationABC①μAOBpHSNHKNH+SNHSOKOAOB+SOXAOBμAOBpHSNHKNH+SNHSOKOAOB+SOXAOBμAOBSNHKNH+SNHSOKOAOB+SOXAOB②μNOBSNO2KANO2+SNO2KIKI+FASOKONOB+SOXNOBμNOBSNO2KANO2+SNO2SOKONOB+SOXNOBμNOBSNO2KANO2+SNO2KIKI+FASOKONOB+SOXNOB③bAOBXAOBbAOBXAOBbAOBXAOB④bNOBXNOBbNOBXNOBbNOBXNOB22.12a2b12。2aNO－2-NNH+4-NBNO－2-NNH+4-NANO-3-NA。2b2NO－2-NNH+4-N。pHAOBNOBpHAOBpHAOBpHNO－2-NNH+4-NpH。9pHNH+4。AOBpHμAOBpH。2apHNO－3-N。pHFAFAAOBNOBNOBAOBFA10FANOB。224826pH2pHNH+4-NNO2Fig.2EffectofpHonNH+4-NremovalandnitriteaccumulationA。3a、3bpHpH=7AOB、NOB。3apH=6～8pHAOBpH8。3bpH7～9NOB。pHpHAOBNOB。11AOBpH7.0～8.5NOBpH6.5～7.5。pHFAAnthonisen12AOBFA10～150mg/LNOBFA0.1～1.0mg/L。FANOBAOB。A。pHAOB、NOB。13pHAOBNOBpH5。14DOAOBAOB。pHA。3pHFig.3EffectofpHonthemaximumspecificgrowthrate2.23pHAOBNOB15348210pH3。1.5mg/L160.6mg/L17。4、5pH=7.5pH=8.53NH+4-NNO-2-NNO－3-N。ABC。45A。4c、5cA、BpHAOBCABC4pH=7.5AOB、NOB、NH+4-NNO－2Fig.4SimulationandverificationofAOBNOBNH+4-NconcentrationandnitriteaccumulationrateunderpH=7.5ABC5pH=8.5AOB、NOB、NH+4-NNO－2Fig.5SimulationandverificationofAOBNOBNH+4-NconcentrationandnitriteaccumulationrateunderpH=8.5pHAOB。4a、4bpHFA5a、5bpHFA。4a5aFABFABA2pHFANOB。3pHAOBNOBAOBNOBA。44826pH2.3AOBNOBMATLABAOBNOB。SBＲ500dAOBNOB。SＲT1～10dAOB、NOB、NH+4-NNO－26。6aSＲTSＲTAOBNOBSＲTAOB。SＲTNOBAOB。SＲT=6dNOB0mg/LNOB0mg/LNO－280%。SＲT18。7SＲT=6dpH。7apH=7.3～8AOB7bpH＞7.36SＲT=1～10dAOB、NOB、NH+4-NNO－2Fig.6PredictionofAOBNOBNH+4-NconcentrationandnitriteaccumulationrateunderSＲT=1～10daysNOB0mg/LNO－280%pH＞7.3NOB。pHpH19pH7.5。pHAOBFANOB。SＲT=6dpH=7.3～8DO=1.5mg/L16Ｒegmi16。7pH=7～8AOB、NOB、NH+4-NNO－2Fig.7PredictionofAOBNOBNH+4-NconcentrationandnitriteaccumulationrateunderpH=7～831pHAOBNOBpH=7.3～8AOBNOB0。pHNO－2。5482102pHAOBNOB3AOBNOBA。3。DO1.5mg/LSＲT=6dpH=7.3～8。1．SBＲ．2015952272-2276ZhangLichengDangWeiXuHaoetal．AchievementandinfluencingfactorsofshortcutnitrificationinSBＲprocess．ChineseJournalofEnvironmentalEngineering2015952272-2276inChinese2．．2012MaoHequn．Establishmentandapplicationofshort-cutnitrifi-cationanddenitrificationdynamicsmodel．Chang’anMasterDissertationofChang’anUniversity2012inChinese3．pH．20113771067-1072WangShuyingLiLunLiLingyunetal．Effectofinitia-tivepHvalueonaccumulationofnitriteduringtheprocessofrapidstart-upofpartialnitrification．JournalofBeijingUniversityofTechnology20113771067-1072inChinese4．pH．200930695-98SunXiaojieTangGuobinChenWeishengetal．pHval-ueeffectonshortcutnitrificationofmunicipalsewage．Jour-nalofNorthChinaInstituteofWaterConservancyandHy-droelectricPower200930695-98inChinese5．．2004100-2606WuJunJiangXinyueWheatleyA．Characterizingactiva-tedsludgeprocesseffluentbyparticlesizedistributionres-pirometryandmodelling．Desalination20092493969-9757．．2009164-58