SBR法降解有机物的规律及动力学分析方茜

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  1 5 2002 9()JOURNALOFGUANGZHOUUNIVERSITY(NaturalScienceEdition)Vol.1 No.5  Sept. 2002  :1671_4229(2002)05_0076_04SBR法降解有机物的规律及动力学分析方 茜,张可方(, 510405) :介绍利用SBR法处理广州地区城市污水过程中有机物的降解规律.在好氧阶段的反应过程中,对有机物降解的动力学模式进行了深入分析,并确定了动力学参数.:SBR法;城市污水;有机物降解;动力学:X703   :A  ,SBR.,,,[1~3],.SBR,.1 SBR,47.4L,42.8L,,,1.1.2.3.4.5.SBR6.7.8.9.1.waterbox2.pump3.compressedaircontainer4.computer5.SBR6.electricvalve7.flowmeterofair8.flowmeterofliquid9.electricvibrator.1 SBRFig.1 FlowdiagramandreactorforSBR  1.1 Table1 Operationprocessofexperiment /h()、1.0()、、2.0~3.01.00.52 2.1 DOSBR,、,.,(),.,,.,1h.CODDO,2.2,(COD)1h30%,DO0~0.2mg·L-1.::2002-04-01:2000([2000]285);1998(9818): (1973-),,;:..,、、.SBR,.(COD),.,.,[4].,.,.,,,.2 COD、DOFig.2 DynamicsofCOD、DO:(0)1h,.2,20~30min,,DO1.0mg·L-1,30~60min,COD,DO.1h,COD,,DO,2.0mg·L-1.COD、DO,,0.5h,DO1.0mg·L-1,COD40mg·L-1.,0.5h,[5].2.2 SBR(),()1h,2h,0.8h,0.5h,4.3h.3、4,,COD200mg·L-1200mg·L-1、BOD5100mg·L-1100mg·L-1,.BOD588%~95%,COD83%~92%,.,,,MLSS2000mg·L-1.,,1800mg·L-1~2500mg·L-1.3 BOD、COD(COD200mg·L-1)Fig.3 InfluentandeffluentofCOD、BODaswellaseffi-ciencyofdegradingCOD、BODinstableoperation(CODmorethan200mg·L-1)4 BOD、COD(COD200mg·L-1)Fig.4 InfluentandeffluentofCOD、BODaswellaseffi-ciencyofdegradingCOD、BODinstableoperation(CODmorethan200mg·L-1)3 3.1 3.1.1 假设(1),SBR.(2),.(3),,.3.1.2 数学模型符号说明77 5          :SBRSo———(mg·L-1);Se———,(mg·L-1);X———(mg·L-1);ΔX———(mg·L-1);V———(m3);T———(d);Ks———;K1———;Y———;Kd———()(d-1);Q———(m3·d-1);S———(mg·L-1);νmax———(t-1);θc———(d).3.1.3 数学模型推导,,Monod,,SBR,.Monod-dsdt=vmax·X·SKS+S(1)  -dsdt=vmaxKS·X·S(K1=vmaxKS),-dsdt=Q(S0-Se)V=K1·X·SeS0-SeX·t=K1·Se(2)-ΔXX·V=Y·Q(S0-Se)X·V-Kd1θc=Y·(S0-Se)X·t-Kd(3)  (2)、(3)SBR.3.2 K1、Y、Kd.K1:(S0-Se)X·t,Se,(2),K1=0.038,5.Y、Kd:ΔXX·V,(S0-Se)X·t,(3),Y=0.709,Kd=0.00148,6.5 K1Fig.5 DefinitionofK16 Y、KdFig.6 DefinitionofY、Kd(S0-Se)X·t=0.038·Se1θc=0.709·(S0-Se)X·t-0.00148  ,,1.0,2d.,,.4  (1),0.5h,DO1.0mg·L-1,COD40mg·L-1,.(2),COD200mg·L-1200mg·L-1、BOD5100mg·78          ()           1 L-1100mg·L-1,,BOD588%~95%,COD83%~92%,.(3),SBR,Monod.(4),1.0,2d,,.:[1] GoronszyMC,.(CAST)[J].,1996,12(6):4-9.GoronszyMC,ZHUMing_quan.Applicationanddevelopmentoncycleactivatedsludgetechnology[J].ChinaWaterWastewater,1996,12(6):4-9.[2] ,,,.[J].,1999,10(11):485-487.YANGHai_zhen,XIONGJian_yingGUGuo_wei,etal.Continuoussequencingbatchreactor[J].ShanghaiEnvironmentScience,1999,10(11):485-487.[3] ,,,.SBR[J].,1999(8):9-15.GUGuo_wei,XIONGJian_ying,YANGHai_zhen,etal.Studyontreatmentofmunicipalwastewaterbycontinuoussequencingbatchre-actor[J].ChinaWaterWastewater,1999(8):9-15.[4] MinesRichardOJr.Bionutrientremovalithasequencingbatchreactor[J].WaterAirandSoilPollution,1998,107(1-4):81-89.[5] ,,.SBR[A].[C],2000.56-59.FANGXian_jin,LIUXue_gong,DUANXi_jun,etal.Studyontreatmentofdomesticwastewaterbysequencingbatchreactor(SBR)[A],Collectionofseminarthesisonnationalwastewaternutrientremovaltechnology[C],2000.56-59.RegularityandKineticAnalysisofDegradingOrganicMatterbySequencingBatchReactorFANGQian,ZHANGKe_fang(SchoolofCivilEngineering,GuangzhouUniversity,Guangzhou510405,China)Abstract:ThepaperdescribesthetreatmentofmunicipalwastewaterinGuangzhouaerabysequencingbatchreactor.Inthisprocess,regularityoforganicmatterremovalisresearched.Duringaerobicprocess,kineticmodelandparame-tersofdegradingorganicmatteraredefined.Keywords:sequencingbatchreactor;municipalwastewater;degradationoforganicmatter;kinetics【:】79 5          :SBR

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