低温低氨氮SBR短程硝化稳定性试验研究张功良

2014,34(3)610~616ChinaEnvironmentalScienceSBR1,1*,2,1,1,1,1,2(1.,1001242.,150090)11~15,(SBR)(50±5)mg/L.,2(DO0.9~1.5,4.5~5.0mg/L),15095%,85%,SVI35.22mL/g,2DO0.15,0.23kgN/(kgMLSS·d).DO4.5~5.0mg/L,21~23,4270%,31~33.FISH,11~1531~33NOB,.SBRX703.1A10006923(2014)03061007StabilityforshortcutnitrificationinSBRunderlowammoniaatlowtemperature.ZHANGGong-liang1,LIDong1*,ZHANGXiao-jing2,ZENGHui-ping1,SUDong-xia1,ZHOUYuan-zheng1,ZHANGJie1,2(1.KeyLaboratoryofBeijingforWaterQualityScienceandWaterEnvironmentRecoveryEngineering,BeijingUniversityofTechnology,Beijing100124,China2.StateKeyLaboratoryofUrbanWaterResourceandEnvironment,HarbinInstituteofTechnology,Harbin150090,China).ChinaEnvironmentalScience,2014,34(3)610~616AbstractAt11~15,inSBRthestabilityofshortcutnitrificationwasresearchedunderlowammonianitrogen(55±5mg/L).ResultsshowthatsystemcouldachievegoodstabilityandremovingeffectundertwokindsoftheDOlevel(initialDO0.9~1.5,4.5~5.0mg/L).In150cyclesthenitrosationratehadbeenmaintainedabove95%,ammoniaoxidationratewasmorethan85%,andtheaverageSVIwas35.22mL/g.AttwoDOaveragelevelsammonianitrogenremovalSludgeloadwas0.15,0.23kgN/(kgMLSS·d)respectively.WhentheinitialDOwas4.5~5.0mg/L,at21~23stableoperationoftheshortcutnitrificationcannotberealized.Nitrosationratefellto70%after42cycle.Buttheshortcutnitrificationcanberestoredat31~33.InthisanalysisandFISHtestresearch,theactivityoftheNOBcanbeinhibitedat11~15and31~33sothatshortcutnitrificationhasastableoperation.KeywordslowtemperaturestabilityshortcutnitrificationSBR,,30~40[13].(30),.HyungseokYoo[4]15;[5]15,.[6]12~14NOB,.[7][89][10].11~15.(SBR),11~15.20130628(NCET100008);(2012ZX07202005)*,,[e-mail]3SBR61111.1abcdDAEBFC1Fig.1SchematicdiagramoftheexperimentalequipmentABD:;abcd:;C:;E:;F:SBR,,55cm,45cm,85L,70L,.10cm.,20cm,,.,.1.1.270L5900mg/L,SV3030%.,(NH4)2SO4NH4+N,NaHCO3,10:1,pH7.0~8.2.NH4+N(50±5)mg/L,NO2NNO3NCOD1mg/L.1L0.136gKH2PO4,0.426gNa2SO4,0.136gCaCl2,0.3gMgSO47H2O1mL,1L15gNa2EDTA,5gFeSO47H2O,0.43gZnSO47H2O,0.24gCoCl26H2O,0.99gMnCl24H2O,0.25gCuSO45H2O,0.22gNaMoO4H2O,0.19gNiCl26H2O,0.21gNa2SeO3,0.014gH3BO3.1.3SBR,d1,2.10min,1.5~18h,50min,5min,55L,55L,78.5%..8,1.1Table1OperationalconditionsofthereacterNH4+N(mg/L)()(h)(mg/L)()(d)11240±1013±2144.5~5.5191~1922145±1513±2181.0~3.03320~523350±513±260.9~1.58853~964450±513±254.0~5.06097~1265550±522±130.9~1.542126~1476650±522±12.54.0~5.060148~1787750±532±120.9~1.542179~2008850±532±11.54.0~5.060201~231:DO10minDO1.4SV30MLSSSVINH4+NNO2NNO3N,DOTpHWTW;MLSSMODEL711.NH4+N,NO2NN(1),NO3N,.:61234(%)=223NONNONNON100%CCC(%)=44NHNNHN100%CC:2NONC,4NHNC,4NHNC,.1.5(FISH)RIAmannFISH[11].NSO190(ProteobacteriaAOB)NIT3(Nitrobacteria)2,OLYMPUSBX52Imagepluspro6.0.22.12.1.1Abeling[12],(FA)1.0~10mg/L,(NOB),(AOB),(DO)AOB,FA(FA10mg/L,240±10mg/L)DO(DO4.5~5.5mg/L).2,13(1~13d),95.40%,1950%,.,(145±15)mg/L33(20~52d),.:,;AOB;NOB,NOB.2,95%,,90%0.08kgN/(kgMLSS·d).52(50±5)mg/L,6h,DO0.9~1.5mg/L,11~15SBR.2,88(53~96d),85%,93.99%,99.42%,95%,.,0.15kgN/(kgMLSS·d),0.20kgN/(kgMLSS·d),.0204060801001201401601802000.00.10.20.3[kgN/(kgMLSSd)]()02040608010012014016018020002040608010012021(%)020406080100120(%)4321234Fig.2Variationsofnitrosationrate,ammoniaoxidationrateandsludgeloadduring1,2,3,4stages140,DO4.0~5.0mg/L,5h.60(97~126d),95%,85%,92.00%,99.79%,,11~15DO.,0.23kgN/(kgMLSS·d),0.25kgN/(kgMLSS·d),,,,DO.34,3SBR613.,11~15,.2.1.2,(SVI).3MLSSSVI.020406080100120140160180200123456(g/L)()MLSS020406080SVISVI(mL/g)12343MLSSSVIFig.3Variationsofnitrosationrate,MLSSandSVIduringdifferentstages3,SVI50.93mL/g,5.9g/L.,,,3.03g/L,SVI,.NOB.,,1.00g/L,SVI,35.22mL/g,11~15.2.2,11~15,.(FA)(FNA)DOpH.45DO3FAFNA.4,2L/min,DO1.5mg/L,,8mg/L.4L/min,DO5mg/L,8mg/L.DO(DO1mg/L).[13]DO0.5~1.0mg/L,.[14]DO0.72mg/L,93%.,DO,95%,NOB,DO.0306090120150180210240270300330360390010203040506070a.:2L/min(3)(mg/L)(min)03060901201501802102402703003303603900246810DO(mg/L)c.(3)0306090120150180210240270300330360390010203040506070(min)DO(mg/L)(mg/L)03060901201501802102402703003303603900246810b.:4L/min(4)d.(4)434DO3Fig.4VariationsofDOandnitrogeninatypicalcycleof3,4stage614345FAFNA,,FA1.00mg/L,4L/min0.60mg/L,,FANOB.[1517],(FNA)NOBAOB0.02,0.4mg/L.200minFNA0.02mg/L,,200min,NOBFAFNA,,FNA0.031,0.024mg/L,NOB.FNA,10,FNA0.019,0.188mg/L,NOB.FNANOB,FNA.2NONpH47FNA14exp[2300/(273)]10CT,FNA(mg/L);T;2NONC(mg/L).03060901201501802102402703003303603904200.00.10.20.30.40.50.60.70.8FNANOB(min)03060901201501802102402703003303603904200.00.20.40.60.81.01.2FA(mg/L)FA(mg/L)0.000.010.020.030.040.000.010.020.030.044L/min2L/minFANOBFNA(mg/L)FNA(mg/L)534FAFNAFig.5VariationsofFAandFNAinatypicalcycleof3,4stagesFAFNAFADO,pH.,NOBpH7.2~7.6[18].pH6.8~7.6,,pH.,11~15.(11~15)NOBAOB,AOBNOB,.NOBNOB.2.32.3.1SBR(11~15),200(22±1),DO0.9~1.5mg/L.65678DO,42(126~147d),90%,85%,,DO.242,,DO4.0~5.0mg/L,4.6,,300,70%,,(22±1),NOB,NOB.4,NOB,,11~15NOB,.(321),DO0.9~1.5mg/L,.6,33,90%,343DO4.0~5.0mg/L,60,90%,,,(321)NOB,3SBR615,(321).(%)DO(mg/L)20022024026028030032034036038040030405060708090100110(%)()304050607080901001100246810DO876565678DOFi