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2003,23(4)395~398ChinaEnvironmentalScience1,2,1,1,2(,2000922.,200135),.,/;(2mm60%);1%;;SiO2CaAl2Si2O8Al2SiO5CaCO3CaOZnMn2O4..X705A10006923(2003)04039504Characterizationofwasteincinerationbottomashanditsbeneficialuseprospect.HEPin-jing1,SONGLi-qun2,ZHANGHua1,SHIAi-juan1,ZHANGPei-jun2(1.StateKeyLaboratoryofPollutionControlandReclamation,TongjiUniversity,Shanghai200092,China2.EnvironmentProtectionandCitySanitationManagementBureauofShanghaiPudongNewArea,Shanghai200135,China).ChinaEnvironmentalScience,2003,23(4)395~398AbstractCharacteristicsofbottomashfromShanghaiPudongMunicipalSolidWasteIncinerationPlantwerestudied,includingphysicalandchemicalcomposition,leachingtoxicity,contentofsolublesalts,morphologyandmineralogy.Theresultsshowedthat,thebottomashwascomposedofslag,crushedceramicsandbricks,stones,glasses,ferrousandnon-ferrousmetalsaswellasveryfewcombustibles;gravel-sizedparticles(2mm)werethemaincomponentover60%;solublesaltscontent1%;leachingtoxicitywaslowerthantheIdentificationstandardforhazardouswastes;itsmineralsweremainlySiO2,CaAl2Si2O8,Al2SiO5,CaCO3,CaOandZnMn2O4.Thebottomashwassuitableforbeneficialuse.Keywordsmunicipalsolidwasteincinerationbottomashphysicalandchemicalpropertiesbeneficialuse,,.1t200~250kg,1000t,17~9t.,.,[13],.(,),,.11.22.1,.10.5%~19.0%,1.4%~3.5%,..1,(20mm)/,;(20mm),,20021220863(2001AA644010);()([2001]44)*39623./,(,,),[2].5%~8%,,,(1000t/d,250t/d),14500~7300t.,0.5%(),.(),,H2,,[9],.(0.5%),,;.1Table1Experimentalmethodsandequipments10524h101-2-S,FA2004(0.1mg)2mm,6003hSX2-512,FA2004(0.1mg),JA21002(0.01g)(ϕ200mm,0.074~50mm)100,[4]AFS-2201(AsHg);PE5100()100,LECOCHNS932(CHNS)[5]H.H.S4,101-2-S[1]HY-6,IS-25pH,LXJ100,PW1710XXL-30ESEM[6],TCLP[7]HY-6,AFS-2201(AsHg)PE5100()2,2~50mm(61.1%~77.2%),0.074mm0.6%,()[9].,,,[1],.2.22,SiAl(,)CaNaFeCKMg.,(CdHgPbZn),(AgCoNi)(AsCuCrMn).,0.8%~1.0%,4397.4meq/g(pH=4),pH.pH(,5:1)11.5,.2Fig.2Particlesizedistributioncurveofthebottomash2Table2Chemicalcompositionofthebottomash(mg/kg)(103mg/kg)Zn1654(60)Ca95.6(8.9)Mn1330(42)Na55.8(10.2)Cu927(286)Fe28.9(1.1)Cr571(94)K15.0(0.7)Pb492(22)Mg13.6(3.0)Ni141(11)C22.1As203(73)H0Co36.6(6.6)Nn.d.Ag21.2(11.6)S3.1Cd11.4(1.5)Hg0.14(0.07):()n.d.2.33XRD.,SiO2CaAl2Si2O8Al2SiO5,CaCO3CaOZnMn2O4.,,.CaCO3CaO,.4,,,,.5,,,,,.3XRDFig.3XRDpatternofthebottomash4(×400)Fig.4SEMmicrographofthebottomash(×400)5(×5000)Fig.5SEMmicrographofthebottomash(×5000)2.43,4[6]TCLP[7].02040605004003002001000EFCACEDBEABEACDABAEBCBDFBFFDDAAECEDAFDCDASiO2BCaAl2Si2O8CAl2SiO5DCaCO3ECaOFZnMn2O4()()05101520250.010.1110100(mm)(%)020406080100(%)39823,,,.,.3(mg/L)Table3Resultsofhorizontalvibrationextractionprocedureofthebottomash(mg/L)As0.00161.5Cd0.0210.3Cr0.03010Cu0.11350Hg0.001690.05Ni0.09310Pb0.3433Zn0.125504TCLP(mg/L)Table4ResultsofTCLPofthebottomash(mg/L)As0.0065Cd0.0801Cr0.0735Cu1.155Hgn.d.0.2Ni0.453Pb1.545Zn22.6:n.d.2.5.,,(/),,[8].33.15%~8%,,14500~7300t,;/,;,2~50mm,2mm60%.3.2SiAlCaNaFeCKMg,,(CdHgPbZn);1%,;4meq/g,pH,.3.3SiO2CaAl2Si2O8Al2SiO5CaCO3CaOZnMn2O4.3.4,..[1]ChandlerAJ,EighmyTT,HartlnJ,etal.Municipalsolidwasteincineratorresidues[M].TheNetherlands:ElsevierScienceB.V.,1997.203254,454472.[2]ChimenosJM,SegarraM,FernándezMA,etal.Character-izationofthebottomashinmunicipalsolidwasteincinerator[J].JournalofHazardousMaterials,1999,64(3):211222.[3]TayJoo-Hwa,GohAnthonyTC.Engineeringpropertiesofincineratorresidue[J].JournalofEnvironmentalEngineering,1991,117(2):224235.[4],,.[J].,2003,22(2):122125.[5]GB7871-87,[S].[6]GB5085.3-1996,[S].[7]KossonDS,KossonTT,vanderSlootHA.Evaluationofsolidification/stabilizationtreatmentprocessesformunicipalwastecombustionresidues(Projectsummary)[R].WastingtonDC:USEPA,1993,18.[8],.[J].,2002,10(1):610.[9].(JTJ034-2000)[M].:,2002.171.(1962),,,,.70.;.