好氧堆肥化中堆体理论供氧模式

3810200610JOURNALOFHARBININSTITUTEOFTECHNOLOGYVol138No110Oct.20061,2,1,3,4,1(1.,163318,E2mail:[e-mail];2.,163318;3.,150001;4.,150090):,,,.,,1m301166m3/min.,,,.,14min11min.1m3,,.:;;;:X172:A:0367-6234(2006)10-1649-05TheoreticalmodeofoxygensupplyinaerobiccompostingYUZhong2chen1,LIUJi2wei2,WUGuo2zhong1,WANGSong3,LVBing2nan4,LIFang1(1.SchoolofCivilArchitectureEngineering,DaqingPetroleumInstitute,Daqing163318,China,E2mail:[e-mail];2.ChemistryandChemicalTechnologyCollege,DaqingPetroleumInstitute,Daqing163318,China;3.Dept.ofAppliedChemistry,HarbinInstituteofTechnology,Harbin150001,China;4.SchoolofMunicipalandEnvironmentalEngineering,HarbinInstituteofTechnology,Harbin150090,China)Abstract:Itisessentialtosatisfymicroorganismsdemandsforoxygeninaerobiccompostingprocessforthelivinggarbageandexcrement.Researchoncapacityandmodeofoxygensupplyhassignificantmeaning.Ac2cordingtotheanalysisofthermodynamiccharacteristicsofthecompostingsystem,thermodynamicbalancee2quationwasestablished,andthetheoreticalairsupplyflowof01166m3/minwasobtainedfor1m3composter.Basedonoxygensupplyandmicrobeconsumption,atheoreticalmodelofdynamicoxygensupplyofthesystemwassetup,andtheoreticaloxygensupplyandconsumptionequationsweredelivered.Thetheoreticaloxygensupplymodewasestablishedthroughthesetwoequations,thatis,oxygensupply14minutesandstoppingfor11minutes.Atlast,thereasonablenessoftheoreticaloxygensupplymodewasdiscussedbycomparingexperi2mentalresultoftemperaturevariationto1m3composterindifferentoxygensupplymode.Keywords:livinggarbage;excrement;aerobiccomposting;oxygensupply:2005-06-27.:(GB02C203).:(1975),,;(1940),,,.,,,.,.20,,,,,,[1].,,.,,.,,,Schulze450580m3/(td),ReganJeris30,45%,1mg/(gh)[2].,,,,.1111,[3],,.,,,.,,,,,,.112.,C/NpH.,.,,,.,,[4].,,.2211,.21221211100g10524h,.212.25504h,.21213,,,BOD,,.1.1.;2.;3.;4.;5.;6.;7.2L;8.;9.;10.;11.;12.;13.1150g,2500mL,,,,,,,,.CO2,.,3(V1),7,NH3,10NH3,11CO2,1213,13(V2).3311(O2),,dQdt=qdO2dt-(T-Tamb)+(ambfamb+056138CdryPTamb)dVdt-(Tfsat(T)+CdryPT)dVdt[5].(1):dQdt,kJ/h;q,q=14J/gO2[6];,kJ/(Kh)(1m3,30[5]);,kJ/kg(60T=2360,15amb=2454);Cpdry,kJ/(m3K)(101.325kPa15,0159);fsat(T)=10010213T-2119,,kg/m3(2);dVdt,m3/h;T,K;Tamb,K.2:fsat[7]312,,,,,,.,.,15,60[8],,,15(Tamb=15).31211FR(m3/min),,60S(SOUR)=112g/(kgvssh),V=1m3,a=3215%,=1134103kg/m3,W=60%,M=65%.3121200=(1-a)=113410301675=905kg/m3.31213FRdt,dQ/dt=0,,(1)qdO2dt-(T-Tamb)+(ambfamb+CdryPTamb)FR-(Tfsat(T)+CdryPT)FR=0.(2)qdO2dt=qs0VM(1-W)=395014kJ/h.(T-Tamb)=1350kJ/h.(ambfamb+CdrypTamb)FR=13140FRkJ/h.(Tfsat(T)+CdrypT)FR=28782FRkJ/h.(2)395014+13140FR-28782FR-1350=0,FR=01166m3/min.,,01166m3/min.441141111,,,,,,,10%[9](,10%,140mg/L),,.41112tC0=29919mg/L(,21%,29919mg/L)Ce=140mg/L,:t;;.41113S(SOUR)=112g/(kgvssh),V=1m3,a=3215%,=1134103kg/m3,W=60%,M=65%,tCt=(1-a)SVM(1-W)60aVt=1415t.:Ctt,156110,:,mg/L.tC,C=C0-Ct=C0-(1-a)SVM(1-W)60aVt=29919-1415t,C=29919-1415t.:Ct,mg/L;t(),min.,,C=29919-1415t.412,.140mg/L,29919mg/L,V=1m3,a=3215%,FRm3/min.41211tm,[t,t+dt],29919FRdt,qo=(1-a)SVM(1-W),dtqodt,m+29919FRdt-qodtaV,m+29919FRdt-qodtaVFRdt,dt3.3dt41212,dm=-.dm=29919FR-FRmaVdt-(29919FR-q0)FRaV(dt)2,dt,(29919FR-q0)FRaV(dt)229919FR-maVFRdtdt,,:dmdt+FRVm=29919FR.m=e-FRaVdt29919FReFRaVdtdt+const.m=e-FRaVt29919aVeFRaVt+const,aV,C=mV=29919+constaVe-FRaVt,:t=0,C=140mg/Lconst=-15919aV.,C=29919-15919e-FRaVt,FR=01166m3/min,V=1m3a=3215%,C=29919-15919e-0151t.:Ct,mg/L;t/min.,,C=29919-15919e-0151t.413,.,,4.4,011min,1125min,2536min,3650min,.,14min11min,,.45,,,,.,,1m3,256138,.=0140150140145,,,10%,01166m3/min,55%60%,a=30%35%,60%65%,5.55(a),(14),7d55515d,.42,.,,.,,,,,,,.,,,,,.5(b),(21),,4d60,7d60,,.,,,.,,,,.61),1m3,01166m3/min.2),,C=29919-15919e-0151tC=29919-1415t.3),14min11min,.4)1m3,,,.:[1],.[J].,2003,11(3):125.[2],.[M].:,2002.[3],,,.()[M].:,1993.[4],.[J].,2000,8(1):24.[5]KAISERJ.Modelingcompostingasamicrobialecosys2tem:Asimulationapproach[J].EcologicalModeling,1996,91:26-27.[6]FINSTEINMS,MILLERCF,STROMPF.Wastetreatmentcompostingasacontrolledsystem[J].Biotech2nology&Biodegradations,1986,8:363-398.[7]CAMPELLGS.AnIntroductiontoEnvironmentalBio2physics[M].Berlin:Springer,1977.[8].[D].:,2004.[9],.[J].,1999,18(10):478-480.()356110,: