短程硝化过程动力学及有机物影响试验研究

、[1]。-、-[2-3]。。DO[4]。SBR。11.1SBR4.6L2.6L。1d4、、、2.5、320、30、2.5、5min。COD。DO1.0mg·L-130～31℃pH7.5～8.0。MLSS2500mg·L-1m(VSS)/m(S)=0.7588%87%。1.2150mg·L-1。COD50、100、200、400mg·L-1DO1.0mg·L-19～10d。1.3NH4+-NNO2--NN-1--DO9010MLSS、MLVSS1121311.7100552.2100193.712000SBRDO。MonodNH4+-Nvmax13.05mg·g-1·h-1NH4+-NKs21.98mg·L-1。DOTN。vmaxC/N0.6vmax58.72mg·g-1·h-1。X703.1A1000-3770(2011)05-0033-0042010-07-052009ZX07212-002CXY09025(4)[e-mail]37520115TECHNOLOGYOFWATERTREATMENTVol.37No.5May,201133pHpHS-3CpHCOD[10]。22.12.1.1SBR。Monod[6-8]v=vmaxρKS+ρ。Monod-dsdt=vmaxX·ρKS+ρ1ρt[9]。1lnρ0ρt(ρ0-ρt)=vmaxKSXt(ρ0-ρt)-1KS22ρ0mg·L-1ρttmg·L-1Xmg·L-1vmaxKSNH4+-Nmg·L-1tmin。2.1.288%87%2450mg·L-1。1。121。2y=ax+bXt(ρ0-ρt)lnρ0ρt/(ρ0-ρt)Ks=21.98mg·L-1vmax=13.05mg·g-1·h-1。v=13.05·Xt·XS21.98+S。2.1.3150mg·L-12。12%。2。2.22.2.12。3、45、、。22Fig.2Dynamicmodelvalidation050100150200250300020406080100120140160
min
mgL1Fig.1Fittingcurve024680.0000.0040.0080.0120.0160.0200.024




t

1Tab.1Parameterscalculatingofthenitrificationprocesstln(ρ0/ρt)/(tρ0-ρt)203660901502402900.00820.00850.00890.00960.0110.0150.019ρXt/(ρ0-ρt)116.69108.92100.0285.5863.3530.0114.455.515.295.755.515.906.156.39375342250mg·L-1。23DO95%。2、4COD≤200mg·L-184%～87%COD400mg·L-165%TN41.3%。5COD≤200mg·L-1CODCOD=400mg·L-1TN40%。。2.2.22vmaxCOD3。3vmaxCOD100mg·L-1vmax58.72mg·g-1·h-1。vmax。CODvmax。DO。3Mon-odv=vmaxρKS+ρvmax13.053Fig.3Nitrogentransformationunderdifferentconcentrationsoforganic050100150200250300020406080100120140160180

mgLmin4Fig.4Nitritetransformationunderdifferentconcentrationsoforganic050100150200250300350050100150200250300

mgLmin5Fig.5Nitratetransformationunderdifferentconcentrationsoforganic05010015020025030035001020304050

mgLminCOD/mg·L-1050100200400vmax/mg·g-1·h-113.0539.1758.7219.9718.463vmaxTab.3Theeffectofconcentrationoforganiconvmax/d1～910～1920～2829～3839～49/%8898969999/%TN/%87858687650.81.534.640ρ(MLVSS)/g·L-1COD/mg·L-12.451.1250.9551.8952.250501002004002Tab.2Operatingconditionsandoperatingresults35mg·g-1·h-1Ks21.98mg·L-1。DOTN。vmaxC/N0.6vmax58.72mg·g-1·h-1。[1]VerstraeteW,PhilipsS.Nitrification-denitrificationprocessesandtechnologiesinnewcontexts[J].EnvironmentalPollution,1998,102(31):717-726.[2]VanKempenR,MulderJW,UijterlindeCA,etal.Overview:fullscaleexperienceoftheSHARONprocessfortreatmentofrejectionwaterofdigestedsludgedewatering[J].WaterScienceandTechnology,2001,44(1):145-152.[3],,JettenMSM,.ANAMMOX[J].,1998,18(4):367-372.[4],,,.DO[J].,2002,18(5):10-13.[5],,.[J].,2004,30(3):241-246.[6]DowningAL,HopwoodAP.Someobservationonthekineticsofnitrifyingactivatedsludgeplants[J].SchweizerischeZeitschriftfurHydrologie,1964,26:271-276.[7]HagopianDS,RileyJG.Acloserlookatthebacteriologyofnitrification[J].AquaculturalEngineering,1998,18:223-244.[8].[M].:,1989.[9],,.[J].,2008,28(5):817-824.[10].[M].4.:,2005.KINETICSANDEFFECTOFORGANICSONSHORT-CUTNITRIFICATIONLvYongtao1,WangLei1,ChenZhen2,WangXudong1,WuHongya3,WangZhiying1（1.SchoolofEnvironmentalandMunicipalEngineering,Xi'anUniversityofArchitectureandTechnology,Xi'an710055,China;2.JiangsuSunnyEnvironmentalProtectionEngineeringCo.,Ltd.,Nanjing210019,China;3.XianyangYuWenCivilEngineeringCo.,Ltd.,Xianyang712000,China）Abstract:Thekineticsandtheeffectoforganicsonshort-cutnitrificationwereinvestigatedwhiletheinitialDOconcentrationwasmaintainedconstantinalab-scaledSBR.Thekineticsofshort-cutnitrificationunderautotrophicconditionscanbedescribedbytheMonodmodel.vmaxof13.05mg·g-1·h-1andKsof21.98mg·L-1wereobtained,respectively.Loworganicconcentrationaffectedslightlyonshort-cutnitrificationunderDOsaturation.WhentheCODwashigh,therateofammoniumconsumedandtheaccumulateefficiencydecreased.Nitrogenlosswasobservedduetosimultaneousnitrificationanddenitrificationinthesystem.Withtheincrementoforganicmatter,thevmaxincreasedfirstandthendecreased.WhenC/Nwas0.6.58.72mg·g-1·h-1ofamaximumvmaxwasachieved.Keywords：short-cutnitrification;kineticsmodel;organics;ammonia-oxidizingbacteriaADSORPTIONANDDYNAMICSOFSANDADSORBINGORGANICMATTERXuWenlai,ZhangJianqiangSchoolofEnvironmentalScience&Engineering,SouthwestJiaotongUniversity,Chengdu610031,ChinaAbstract:TostudytheruleandperformanceofmatrixadsorbingorganicmatterinCRIsystem,isothermaladsorptioncharacteristicofsandadsorbingCODwasresearchedandfirst-levelandsecond-leveldynamicsmodelsawerechosentoanalyzedynamics.TheresultsofthetestshowedthatisothermaladsorptioncharacteristicofsandadsorbingCODconformstoLangmuirequation,valueofadsorptionintensityfactorK1was0.02720,themaximumamountsadsorptionofCODwas1893.7065mg·kg-1,bothstandarddeviationvaluesoffirst-levelandsecond-leveldynamicmodelsweregreaterthan0.9800whichindicatethatboththetwomodelswerefeasible.ParametersofLangmuirequationshowedthefirst-leveldynamicmodelwasbetterthanthesecond-levelandtheequilibriumadsorptionofsandadsorbingCODwas1750.3355mg·kg-1inthistest.Researchresu