含易降解有机质时对苯二甲酸TA厌氧降解动力学

16420007ChineseJournalofBiotechnologyVol.16No.4July2000:19990913,:20000407(TA)李小明1陈坚2伦世仪21(410082)2(214036),,,,:q=qmaxSS+KS[1+(I-0.86)/Ki,i]+S2/Ki,S,,qmax=1972.0mgTA/gVSSd;Ks=20.2844gTA/L;Ki,i=2.041gCOD/L;Ki,s=0.0108gTA/L,,,Q819A10003061(2000)04050504(TerephthalicAcid,TA),TA,[1],TA[2~5],UASB()TFF()AFB()TA,,,TA,,,1材料及方法11TA:TA,,TA,3:9989%,Schuchardt,8011HohenburnnbeiMunchen12121:TA,1,500mL,3,TA10~16h1,15mL,CODTATA(36!1);2~31Fig.1Apparatusfornonsteadykineticsexperiment122:(COD)[6];[7];pHpH2CpH,TACOD:TACOD,,TA,TA,CODTA,CODTA,COD2结果与讨论21TATA,TA,,,,,(1)Andrews[8]=max11+KS/S+S/Ki(1),,q=qmax11+KS/S+S/Ki(2):qTA(mgTA/gVSSd);S(gTA/L);qmaxTA(mgTA/gVSSd);KSKi,s(gTA/L)TA11TATable1ExperimentaldataofTAdegradationTAConcentration/(mg/L)TALoading/(mgTA/LgVSS)(qfromexperiment)/(mgTA/gVSSd)(qfromformulacaculation)/(mg/TA/gVSSd)80.020.386.647.50140.935.6611.5412.38204.752.1615.8916.55277.970.8220.1619.79356.890.9221.5621.46453.0115.4821.6922.10505.6128.8422.6622.22674.5171.8623.1521.11802.32204.4118.1618.01936.04238.4816.8116.31:,VSS7.850g/L,(1),,:qmax:1972.0mgTA/gVSSd;KS:20.2844gTA/L;Ki,s:0.0108gTA/L2222,2TAFig.2ExperimentaldataSimulationtotheTAdegradationkineticsequation2Table2VarianceanalysistononlinearregressionequationSourceofvarianceDegreeoffreedomSumofsquareAverageofsquareFCoefficientRegression33966.41322.1Residual823.572.947448.6r2=0.994Total113990.2F=448.6F0.01(3,8)=7.59,22TATA,,TA[9],,TA[10]:=VmaxSKS(1+I/Ki)+S(3),KSKS(1+I/Ki),(1+I/Ki),50616TA,KSKS(1+I/Ki,i),(2):q=qmax11+KSS1+IKi,i+S/Ki,S(4):q=qmaxSS+KS(1+I/Ki,i)+S2/Ki,S(5):I;Ki,i,(TACOD)860mg/LTA,,,I(I-086),3,,Ki,i,:Ki,i=2041gCOD/LF4:q=qmaxSS+KS[1+(I-0.86)/Ki,i]+S2/Ki,S(5)3TAFig.3KineticsofTAdegradationwitheasilydegradableorganicmaterialandexperimentaldatasimulation3TACODTATable3EffectofnonTACODLoadingonTAdegradationrateCODTAq/q/Conc./(mg/L)Loading/(gCOD/LgVSS)Conc./(mg/L)Loading/(gTA/LgVSS)(mgTA/gVSSd)Fromexperimentfromformulacalculation(mgTA/gVSSd)withoutCODinhibitionInhibitionpercent/%10510.268298.90.076017.8518.73820.4488.3618280.466270.00.068815.01114.44219.26325.0222360.570271.20.069112.18313.05619.55333.3031470.802275.10.070110.01510.80519.69345.2349681.266317.00.08079.1508.84920.92442.2956811.448304.10.07667.0157.78820.58962.1771181.814288.00.07336.3506.28720.12169.2699982.548263.00.0674.1104.40319.26077.464Table4VarianceanalysistononlinearregressionequationSourceofvarianceDegreeoffreedomSumofsquareAverageofsquareFCoefficientRegression1916.03916.03Residual73.5300.5411693.2r2=0.966Total8950.12F=1693.2F0.01(1,7)=1225,33,,23TA3,TA,,TA,,,,TA,TA5074:(TA),,TA,,(,)3结论TA,Andrews,=max11+KS/S+S/Ki,TA,TA,,:q=qmaxSS+KS[1+(I-0.86)/Ki,i]+S2/Ki,S,qmax=19720mgTA/gVSSd;KS=202844gTA/L;Ki,i=2.041gCOD/L;Ki,S=00108gTA/LTA[1]:,1992,p.153[2]MacarieH,NoyolaA,GuyotJP.WatSciTech,1992,25(7):223~235[3]GuyotJP,MacarieH,NoyolaA.AppliedBiochemistryandBiotechnology.1990,24/25:579~589[4]XINLM,CHENYX,ZENGXD.ProcIntConfPet.Beijing:RefinePetrochemProcess.1991,pp.120~126[5],,1995,13(4):1~6[6],1982,2:41~48[7],,,,1992,13(3):18~24[8]AndrewsJF.BiotechBioeng,1968,10:707~711.[9],1995[10],,:,1990,p.262KineticsforTerephthalicAcidAnaerobicDegradationwithEasilyBiodegradableOrganicMaterialCoexistenceLIXiaoMing1CHENJian2LUNShiYi21(DepartmentofEnvironmentalScienceandEnvironmental,HunanUniversity,Changsha410082)2(SchoolofBiotechnology,WuxiUniversityofLightIndustry,Wuxi214036)AbstractThefactofpreferentialsubstrateutilizationresultsinasequenceofsubstrateattack.Astypically,theeasilybiodegradablesubstratesinTAcontainingwastewateraredegradedfirstlythroughmethanefermentationpathway,andjustthoseintermediatemetaboliteshavebeenprovedtobeinhibitorsforTAbiodegradation.Moreover,TAitselfcaninhibittheTAbiodegradation,too.AkineticmodelfortheanaerobicdigestionofwastewatercontainingbothTAandeasilybiodegradablepollutantsisconstructedasq=qmaxSS+KS[1+(I-0.86)/Ki,i]+S2/Ki,S,Themodelparametersareestimatedwithnonlinearregressionmethod,thevaluesareasfollows:qmax=1972.0mgTA/gVSSd;Ks=202844gTA/L;Ki,i=2.041gCOD/L;Ki,s=0.0108gTA/L.Theexperimentaldataverificationforthemodelequationissatisfactory.Accordingtothemodelanalysis,anewstrategy,atwostepanaerobicsystem,dealingwiththiskindofwastewaterissuggested.KeywordsTerephthalicacid;anaerobicdegradation;kineticmodel50816