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©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(2008)2326283205ScienceTechnologyandEngineeringVol18No123Dec.2008Z2008Sci1Tech1Engng1(,317000),,KNO3,X524;A2008818(08QN10):(1980),,,,:E2mail:jst80@126.com,[1,2],,MBR,2,,;,,,,(),,,,MBR,,,,,2[3]11.12,2,NH+42N,NO-22NMonod:=maxSKS+S(1)(1);max;KS,=max/2;S(NH+42NNO-22N)1,©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.[46]maxd-10.6-0.80.6-1.00.6-0.8KS,NH4gm-30.30.70.81.20.30.7KS,O2gm-30.51.00.51.50.51.0YmaxggN0.100.120.050.070.150.20bd-10.030.060.030.060.030.06(1),KSnS,S,,NO-22NNO-32N,NO-22N,NH+42NNO-22N,(1)[46]=maxSNH+42NKS+SNH+42N(2)(2),;max;SNH42N;KS1.2:NO-32N[4,5],NO-32N(3)=maxSN(KS+S)(KN+N)(3)(3),max;SNNO-32N;KSKNNO-32N2KS(510)mg/L,KN(0.20.5)mg/LNO-3-N(24)mg/L,KNN;,,KSS,(3):=max(4)220[46]*maxd-15-10bd-10.05-0.10KNgm-30.2-0.5*KSgm-35-10KS,O2(NO3)gm-30.1-0.5*Ymaxkg/kg0.5-0.653(4),0.1mg/L,NO-32N,[4](5):dNO-3dtN=Kx(5),dNO-3dtN;x;K21,,,,,,PLC,,62,62,62,,,:MLSS6520mg/L,DO0.8mg/L,pH7.1,202248268©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(1),,,,(2),,Monod,MBRNH3-N,(6):dSNHdt=-1YAASNHSNH+KNHSOKOA+SOXBA(6)(6):SNH(mg/L);KNH(mg/L);YA(kg/kg);A(h-1);SO(mg/L);KOA(mg/L);XBA(mg/L),YAASOKOAXBA,1,KNH0.30.7mgNH3-N/L,KNH,(6):dSNHdt=-k(7)(7):k(7),,(2)4,,4k4.07:dSNHdt=-4.07MBRNO-32N,(8)dSNO3dt=dSNO3dt+dSNO3dt(8)582623,:©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(9)dSNO3dt=-dSNHdt+dSNO3dt(9),dSNO3dt=-1-YH2.86YHXBHSSKS+SSgKOHKOH+SOSNO3KNO3+SNO3(10):SNO3(mg/L);KNO3(mg/L);YH(kg/kg);H(h-1);SS(mg/L);KS(mg/L);KOH(mg/L);XBH(mg/L);g(0g1)(10),YHHSOKSKOHgXBH,,2,KS20mg/L,,KSSSSS/(KS+SS),(10)(11)dSNO3dt=kASNO3KNO3+SNO3(11)(11)A(11),(12)t=SNO3k-A+KNO3k-AlnAKNO3AKNO3+(k-A)SNO3(12)k=4.07,(12)(2)Matlab,A=2.15,KNO3=3.7dSNO3dt=4.07-4.82SNO33.7+SNO3,KNO3=3.7mg/L,(0.20.5mg/L)22,,,3,,KNO3,,1,,..,2003;19(7):8112,,,.MBR.,2001;22(4):51553PochanaK,KellerJ.Modeldevelopmentforsimultaneousnitrifica2tionanddenitrification.WatSciTech,1999;39(1):2352434.(2).:,1993:1052045,..:,2004:1002606..:,2002:15120668268©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(TaizhouUniversityofZhejiangProvince,Taizhou317000,P1R1China)[Abstract]Accordingtotheanalysisofkineticmodelofnitrificationanddenitrification,thekineticmodelofsimultaneousnitrificationanddenitrificationinthesubmergedmembranebioreactorhavebeenestablished.Basedontheexperimentalresultsandthekineticmodelofsimultaneousnitrificationanddenitrificationinthesubmergedmembranebioreactor,theconclusioncouldbedrawnthesaturationconstantofnitrate(KNO3)ismorehigherthangeneralKNO3intraditionalindenitrificationprocess,anditcouldbeexplainedthesimultaneousnitrificationdenitri2ficationphenomenon.[Keywords]submergedmembranebioreactor(SMBR)nitrificationdenitrificationsimultaneousni2trificationanddenitrification(SND)kineticmodel(6277)DevelopingDynamicModulusMasterCurvesofAsphaltConcreteinIndirectTensionModeMALin,ZHANGXiao2ning(RoadResearchInstitute,SouthChinaUniversityofTechnology,Guangzhou510640,P1R1China)[Abstract]Dynamicmodulusofasphaltconcreteistheimportantparameterfortheasphaltpavement.Basedontheindirecttensiontestmode,adoptingthreetypicalmixesinChina,usingtheGPMtestingmode,theindirecttensiondynamicmodulusweredeterminedaccordingtothecorrectedbiaxialstrainandstress.Mastercurvesareconstructedusingtheprincipleoftime2temperaturesuperposition.TheHirschmodelwasusedtoestimatethelimit2ingmaximummodulusofthemixtures,theGlobalAgingModelandtheArrheniusModelareusedtoobtaintheshiftfactors,themastercurvesandtheSigmodialfunctionofmastercurvesaredeterminedbynumericaloptimizationforthreetypicalmixes.ThegoodnessoffitstatisticsprovidesanexcellentfittothemeasureddatawiththecorrelationcoefficientR2allgreaterthan0.99.TheresultsclearlyshowtheSigmodialfunctionofIDTdynamicmodulusmastercurvesforthreemixesaregoodnessoffitstatistics.[Keywords]asphaltconcretedynamicmodulusindirecttensiontestmastercurvesphaseangleprincipleoftime2temperaturesuperpositionshiftfactor782623,: