城市污水处理厂污泥量计算方法

42220094()EngineeringJournalofWuhanUniversityVol.42No.2Apr.2009:20080630:(1985),,,,Email:[e-mail].:16718844(2009)02024404吴帆,程晓如(,430072):,,,.,,;,,YKdSe,3,3,..:;;;:TU992:ACalculationmethodsofsludgevolumeinmunicipalsewagetreatmentplantWUFan,CHENGXiaoru(SchoolofCivilandArchitecturalEngineering,WuhanUniversity,Wuhan430072,China)Abstract:Accordingtothecompositionandtreatmentprocessofsludgeinmunicipalsewagetreatmentplant,thispaperconcludescalculationmethodsofsludgevolume,unifiesthevalueofparametersandmakesthecalculationresultstofitwellwiththepractice.Thesludgeisdividedintoprimarysludgeandsurplussludge.Twocalculationmethodsabouttheprimarysludgearepresentedbasedontheproductionprinciple.Thearticleputsemphasisondiscussionofsurplussludgevolume;andthesurplussludgeisdividedintobiologicalandnonbiological.Itanalyzescalculationmethodsofbiologicalsludgethroughproductionprinciple,thevalueandinfluenceconditionofYandKdandthevalueofSe.Asforthethreecalculationmethodsofnonbiologicalsludge,thepaperpointsouttheapplicableconditionbasedontheformulameaningandmakescleartheconceptofcalculationofsludgevolume.Finally,variouscalculationmethodsofsludgevolumearesummarizedwithorwithouttheprimarysedimentationtankinmunicipalsewagetreatmentplant.Keywords:sludgevolume;primarysludge;surplussludge;calculationformulas,.,.,.,,,,[1].,..1.,2,:[2].1):W=CQ(1-P1)(1):W,m3d;Q,m3/d;C,g/L;;P1;,1000kg/m3.2):W=SN1000(2):W,m3/d;S,L/(d);N.,,50%,95%~97%[3].2,,,,,BOD;,.2.12.1.1计算方法,.,.1):X1=Y(So-Se)Q-KdVXv:X1,kg/d;V,m3;(So-Se)Q,kg/d;Xv(gMLVSS/L);Y,1kgBODMLVSSkg;Kd(),d-1;So,kg/m3.,,,X0[1].2):X1=(Y1+kd!c)Q(So-Se)=YobsQ(So-Se)(3):!c;Yobs...,.,,,,,.2.1.2Y和Kd的取值及影响条件Y(kgVSS/kgBOD5),,,0.4~0.8[4].,,;,,,[5].Y.Kd,Kd.Hebre,,[5].,,.,.,,.20Kd0.04~0.075,Kd,[4]:KdT=Kd20(!T)T-20(4):KdTT,d-1;Kd2020,d-1;T,;!T,1.02~1.06.2.1.3Se的取值Se,SeBOD5BOD5,.[4]Se245()42BOD5.,,().BOD5.,SeBOD5,.BOD5:[6]:S1=Se-1.42VSSTSS!TSS!(1-e-0.23!5)(5):S1=Se-7.1Kdf1SSe(6):S1BOD5;SeBOD5;Kd;f1SSVSS;SSe.2.2,,.,.3[6,7]:1)X2=Q(SSo-VSSo)-QSSe(7):X2,kg/d;SSo,kg/m3;VSSo,kg/m3;SSe,kg/m3.SS,.VSSSS.,[7].(7),,SS,.2)X2=fpQ(SS0-SSe)(8),fp.(8)fp,,fp,,.SS(),ATV0.6,,,0.5.,,f,0.3[1].3)X2=Q(1-fbf1)(SSo-SSe)(9):fbVSS;f1SSVSS.(9),,fbf1,.2.3(),X=X1+X2(10),X,kg/d.3,:1),[8,9]:():Qs=W+X1+X2Xr(11):Qs,m3/d;W,m3/d;Xr,g/L.,,X2,SSo,fpfb,.():Qs=W+X1fXr(12):fMLVSS/MLSS.MLVSSMLSS,X1(kgVSS/d).f0.7~0.8.2),,:():Qs=X1+X2Xr(13)():Qs=X1fXr(14),,MLVSS/MLSS(f)2462,:,,f0.4~0.6,0.5[10].41),.,,,,.2),SS,.3),SeBOD5.:[1],,.[J].,2003,25(5):6974.[2].[M].:,2001.[3],,.[M].:,2007.[4]GB500142006,[S].[5].[D].:,2006.[6],,,.[M].:,2004.[7],,,,.[M].:,2002.[8],.[J].,2003,29(8):2325.[9],,.[M].:,1999.[10],.[J].,2005,21(2):6366.(上接第195页),,.:[1]LondeP,LinoM.ThefacedsymmetricalHardfilldam:anewconceptforRCC[J].InternationalWaterPower&DamConstruction,1992.[2]RaphaelJM.Theoptimumgravitydam[C]//ProceedingsofRollerCompactedConcreteIII,ASCE,SanDiego,California,1992(25):519.[3]HiroseT,FujisawaT,YoshidaH.ConceptofCSGanditsmaterialproperties[C]//Proceedingsof4thInternationalSymposiumonRollerCompactedConcreteDams.Spain,2003:465473.[4]HeYL,WangXF,ZhouLL.Calculationofparabolicfoundationpressureandadditionalstress[C]//InternationalConferenceonGeologicalEngineeringin2007,Wuhan,2007.[5]MccarthyDF.EssentialsofSoilMechanicsandFoundations[M].NewYork:RestonPublishingCompanyInc,1977:162178.[6].[M].:,1987.[7].[M].:,2002.[8],,.[M].:,2006.[9].[M].:,1984.[10].[M].:,2000.[11].[M].:,2002.247