SBR工艺去除MAP沉淀后垃圾渗滤液中氨氮的实时控制何士龙

SBR工艺去除MAP沉淀后垃圾渗滤液中氨氮的实时控制何士龙1,　陈梅雪2,　王丽萍1,　张雁秋1(1.,,　221116;2.,,　100085):UASB()+MAP(),(ORP)、pH(DO),(SBR).:,-;,,ORP“”;,,pH“”,.,ORPpH.2,(TOC)(TN)84%98%.:;;-;ORP;pH:X703.1　　　:A　　　:1000-5854(2009)06-0783-05,[1～5].(ORP)、pH、(DO),,,,.,,[6,7],.,[8]:1);2)CODNH4+-N;3).,,、;,,,、,,,m(C)/m(N)3[9],,.:(UASB)(MAP)[10],90%,m(C)/m(N),.,,(SBR)ORP,pHDO,.1　1.1　试验过程UASB,MAP1.,30d,SBR.SBR7000～7500mg/L,8000mg/L,,35d.:2009-05-20;:2009-06-16:(20080201):(1977-),,,,,.33/6/200911河北师范大学学报//JOURNALOFHEBEINORMALUNIVERSITY/NaturalScienceEdition/Vol.33No.6Nov.2009DOI:10.13763/j.cnki.jhebnu.nse.2009.06.0191　MAPCODCr/(mg·L-1)BOD5/(mg·L-1)NH4+-N/(mg·L-1)m(C)/m(N)TK(mg·L-1)PO43--P(mg·L-1)pHUASB6200±3002000±1282700±503.02713±1210±37.8～8.2MAP5100±3001650±43200±508.0206.3±516±48.8～9.11.;2.;3.;4.;5..1　SBRSBR1.SBR,9L.ORP,pHDO,;.SBR5,、()、、、,5,,5min、()120min、300min、30min、10min,SBRORP,pHDO.UABS+MAP,,pH7.5,500mL,500mL.-ORP,pHDO,,.,.SBR20℃.1.2　分析方法、TOC,COD,BOD,NH4+-N,NO2--N,NO3--N,TN..2　2.1　垃圾渗滤液生物脱氮过程中ORP,pH及DO曲线变化规律,7000mg/L,SBR5,2SBR1SBR2,,MAPORP,pHDO.23.2　SBRORP,DO,pH·784·2SBR110,UASBORP,pHDO.2,10,.m(C)/m(N)(3.0),,,.[10].ORP,pHDO,,m(C)/m(N),,,NO3--N10mg/L,ORP[7]“”;,pH,,,,,,25mg/L,ORP,pHDO[7,11].3SBR210,MAPORP,pHDO(=0.085m3/(m3·d)).3,A,5min,.,.MAP,,m(C)/m(N),.42min,N2,NO3--N“”.ORP,,———B,“”,.ORP,.C,,.,,,(1mg7.14mg,CaCO3),pH.,pH,CO2VFA()[11];,,,pH;,,pH,64min,,pH———“”,[7].DO,,,DO,DO.ORP,,,,ORP.3　SBRMAPORP,pH,DO4　SBRMAPORP,pH,DOORP,pH,DO,4(·785·=0.17m3/(m3·d)).4,0.0850.17m3/(m3·d),,,ORPpH,42min80min,64min100min.,,ORP,pH,.2.2　实时控制系统的设计2.1-ORPpH,SBR-.5.,ORP,dORP/dtB,.dpH/dt.,ORP(pH)5min,dORP/dtdpH/dt5min.,,dORP/dtdpH/dt..,,5min,3min,,.,pH(B),(D),dpH/dt,dORP/dt.,pH.(B),dORP/dt(-1.5-14.2mV/min),,dORP/dt.dORP/dt-2mV/min,,dORP/dt-5mV/min.,90min.2.3　生物脱氮实时控制系统稳定运行的结果,SBR,6.60d,-.2.:,,TOCTN84%98%,.5　6　ORPpH　　　　　2　　(mg·L-1)CODCrTOCNH4+-NNO3--NTK4201080.0112.913.63　　SBRMAP:1)m(C)/m(N),-,·786·,ORP“”;,pH“”,dpH/dt=0dpH/dt0.,pHORP.2)pHORP,SBR、,TOCTN84%98%,.:[1]　ZHANGZhi-jian,ZHUJun,KINGJ,etal.ATwo-stepFedSBRforTreatingSwineManure[J].ProcessBiochemistry,2006,41:892-900.[2]　KOCHFA,OLDHAMWK.Oxidation-reductionPotential-AToolforMonitoring,ControlandOptimizationofBiologicalNutrientRemovalSystems[J].WaterSciTechnol,2004,17:259-281.[3]　SAUNES,CAPDEVILLEB,MAURETM,etal.Real-timeControlofNitrogenRemovalUsingThreeORPBendingPoints:Signification,ControlStrategyandResults[J].WaterSciTechnol,1996,33:275-280.[4]　,,.DOORPSBR[J].,2002,35(1):61-66.[5]　,,.DO、ORP、pHSBR[J].,2003,23(2):253-256.[6]　,.[J].,2004,10(6):821-825.[7]　KIMJ,CHENM,KISHIDAN,etal.IntegratedReal-timeControlStrategyofNitrogenRemovalforSwineWastewaterTreat-mentUsingSequencingBatchReactors[J].WatRes,2004,38(14-15):3340-3348.[8]　,,,.[J].,2005,21(12):27-31.[9]　BULCT,VRHOVSEKD,KUKANJAV.TheUseofConstructedWetlandforLandfillLeachateTreatment[J].WatSciTech,1997,35(5):301-306.[10]　HEShi-long,ZHANGYu,YANGMin,etal.RepeatedUseofMAPDecompositionResiduesforRemovalofHighAmmoniumConcentrationfromLandfillLeachate[J].Chemosphere,2007,66:2233-2238.[11]　UGURLUA.MonitoringandControlofBiologicalNutrientRemovalinaSequencingBatchReactor[J].ProcessBiochem-istry,2005,40:2873-2877.TheReal-timeControlofSBRSystemforRemovalofAmmoniainLandfillLeachateTreatedbyMAPPrecipitationHEShi-long1,　CHENMei-xue2,　WANGLi-ping1,　ZHANGYan-qiu1(1.JiangsuKeyLaboratoryofResourcesandEnvironmentalInformationEngineering,SchoolofEnvironmentandSpatialInformatics,ChinaUniversityofMining&Technology,JiangsuXuzhou　221116,China;2.StateKeyLaboratoryofEnvironmentalAquaticChemistry,ResearchCenterforEco-EnvironmentalSciences,ChineseAcademyofSciences,Beijing　100085,China)Abstract:SBRwasusedtostudytheeffectivenessofintegratedstrategyofrealtimecontrolforpracticallandfillleachatewhichwaspre-treatedbyUASBandMAPandoxidation-reductionpotential(ORP),pHanddissolvedoxygen(DO)wereusedasparameterstocontrolthecontinuousprocessofammoniaremoval,respec-tively.Theexperimentalresultsindicatedthatasteadybiologicalprocessofnitrificationanddenitrificationcouldbeachieved.Inanaerobicphase,the“kneepoint”appearedintheprofileofORPwhenthecompletedenitrifica-tionfinished.Inaerobicphase,althoughthe“valleypoint”didnotappearedintheprofileofpHwhenthecom-pletenitrificationended,thetransitionpointappeared.So,ORPandpHcouldbeusedastheparacterstocontrolthecontinuousdenitrificationandnitrificationprocess,respectively.Aconstanteffluentqualitycouldbeobtainedaftertwomonthofreal-timecontrol.Theaverageremovalefficienciesoftotalorganiccarbon(TOC)andtotalnitrogenwereover84%and98%,respectively.Keywords:landfillleachate;real-timecontrol;nitrification-denitrification;ORP;pH(　　)·787·