低溶解氧下SBR内短程硝化影响因素试验研究张小玲

1SBR121.7100642.710055SBR。SBR0.50~20.73mg/L21~30℃、15~40d80%COD900mg/LSBR。X172Adoi10.3969/j.issn.1003-6504.2011.01.0391003-6504(2011)01-0163-04ExperimentalStudyonInfluencingFactorsofShort-cutNitrificationatLowDOConcentrationZHANGXiao-ling1WANGZhi-ying21.SchoolofEnvironmentalScienceandEngineeringChang’anUniversityXi’an710064China2.SchoolofEnvironmentalandMunicipalEngineeringXi’anUniversityofArchitecturalScienceandTechnologyXi’an710055ChinaAbstractRealizationofshort-cutnitrificationdependedonvariousfactorsandlowDOconcentrationwasascontrollingfactortoachieveshort-cutnitrification.SequencingbatchreactorSBRwasdesignedtoinvestigatetheeffectsofotherfactorsonshort-cutnitrificationunderlowDOconcentration.ExperimentalresultsshowedthathighfreeammoniaconcentrationinSBRplayedacatalyticroletonitriteaccumulation.Stableshort-cutnitrificationcouldbeachievedontheconditionoftemperature21~30℃andsludgeage15~40dnitriteaccumulationratecouldmaintainover80%duringexperiment.OrganicmatterhadlittleimpactonammoniaoxidationratebutexpansionofhighviscosityofsludgeoccurredinSBRundertheconditionof900mg/LofCOD.KeywordslowDOshort-cutnitrificationfreeammoniatemperaturesludgeage。NO2-。pH、、delftSHARON。SHARON30~35℃。SHARONpH7.4~8.31.0~1.5mg/L1~2.5d[1]。。。。、、、《》@126.com2010-03-0[e-mail]。EnvironmentalScience&Technology34120111Vol.34No.1Jan.2011,.SBR[J].,2011,34(1):163-166.ZhangXiao-ling,WangZhi-ying.ExperimentalstudyonInfluencingfactorsofshort-cutnitrificationatlowDOconcentration[J].EnvironmentalScience&Technology,2011,34(1):163-166.34。11.11。SBR5L4L、、、5min、。1.2NH4NHCO3、NaHCO3、CH3COONa·3H2O、KH2PO4NH4＋-N300mg/LCOD400~600mg/LPO43--P3mg/L。1.3NH4+-NNO2--NN-1-NO3--NTOC5000ATOCDOMetller-ToldDO4100DO。22.1、28~32℃。50~100mg/L2d5mg/L。100mg/L200mg/L。10d、＜5mg/L0.62kg/m3·d98%、。2.2SBRSBR[2]。70~80L/hSBRDO0.4mg/L30minDO5~6mg/L5mg/L76%92%SBRDO0.4mg/L30minDO5~6mg/L、、、。2.3SBR2.3.1300mg/L、5min、NaHCO31g12gNaHCO3FreeAmmoniaFA。NH3NH4+pH、1[NH3-N][NH4+-N]=10pH(KaKw)+10pH1KaKw=exp(6334273+T)KaKw。1SBRFA0.50~20.73mg/LNH4+pH。FAFA。FA0.1~1.0mg/L10~150mg/L。[3]。[4]。FA。2.3.2SBR。4~45℃20~35℃15℃。12~14℃。15~30℃。30℃[5]。。2。2。1641221~30℃32℃30℃。30℃[6]。232~24℃90%。21℃90%。21~32℃。2.3.3SBR。。。SHARON、。。3。315d、20d、25d32d98%~99%、96%~98%、91%~96%40d75%~90%。。15~30d。2.3.4SBRCOD300mg/L、600mg/L、900mg/LSBR。COD。NH4＋-NNH4＋-N、NO2--N、NO3--N4。SVI5。4CODCODNH4＋-N1mg/LNO2--N。COD0.130~0.576kgCOD/kgMLSSCOD。5COD300mg/L600mg/LSVI100mL/gCOD900mg/LSVI7125.524mL/g255.64mL/g。2Table2Theeffctsoftemperatureonammoniaoxidationrate(℃)3230272521(d-1)0.48900.54860.39990.38930.2692SBR16534154pH7000V100mg/L2。41、。2pHCODpHpHCOD。[][1].[J].2002225:566-569.ChenYin-shengZhangXin-shengYuanWei-kang.Apreliminarystudyofpulsedhigh-voltagecoronadischargeplasmaforthedegradationofphenolinaqueoussolution[J].ActaScientiaeCircumstantia2002225:566-569.inChinese[2].[J].20042316-19.[3].[J].200725646-49.MaJing-taoZhouZe-feiWuZu-chengetal.Researchontheremovalofodorsubstancesbylowtemperatureplasm[J].EnvironmentalEngineering200725646-49.inChinese[4].[J].2001213136-139.ChenDian-ying.Coldplasmaanditsapplicationintreat－mentofwastegas[J].EnvironmetalProtectionofChemicalIndustry2001213136-139.inChinese[5].[J].200834975-7887.[6]GrymonpreDavidRFinneyWrightCLockeBruceR.Aqueous-phasepulsedstreamercoronareactorusingsus－pendedactivatedcarbonparticlesforphenoloxidationmodel-datacompation[J].1999,(15-16):3095-3105.、。。。。。[7]。。。31。221~30℃、15~40d。3COD900mg/LSBR。[][1]JWMulderMCMvanLoosdrechtCHellinga,etal.Full-scaleapplicationoftheSHARONprocessfortreatmentofrejectionwaterofdigestedsludgedewatering[J].WatSciTech,20014311127-134.[2].[J].,200420513-16.[3]TurkO,MavinicDS.Maintainingnitritebuildupinasys－temacclimatedtofreeammonia[J].WatRes1989231383-1388.[4].-[J].200016229-31.[5]HellingaCSchellenAAMulderJW,etal.TheSHARONprocessAninnovativemethodforammonium-richwastew－ater[J].1998379135-142.[6].[M].:1995.[7].[M].:1992.!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!166