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,,(, 300071,E-mail:ailingr@163.com):,、.、、,.、,,.:40%、20min、600℃、1∶2～1∶3,514～542mg/g,、、0.39～0.53mL/g、0.10～0.15mL/g、0.15～0.23mL/g,193～256m2/g.COD2400mg/L、250,COD87%、80%.:;;;:X703 :A :0250-3301(2004)-0048-04:(023608411):(1963～),,,.StudyontheActivatedCarbonProducedwithSewageSludgeRENAi-ling,WANGQi-shan,HEJun(CollegeofEnvironmentalScienceandEngineering,NankaiUniversity,Tianjin300071,China,E-mail:ailingr@163.com)Abstract:OnthebasisoftestofcharactersandcomponentsofsewagesludgefromDongjiaoWastewaterTreatmentPlantinTianjin,thepreparationtechnologyofproducingsludgeactivatedcarbonusingmunicipalwastewatersludgewasdiscussed.Chlorideofzinc(ZnCl2)wasusedasasludgeactivationagentduringthepyrolyticprocess.Theoptimaloperatingconditionsweredeterminedthroughorthogonalexperiment.Theactivationagentconcentration,theratioofsolidtoliquid,theactivationtemperatureandactivationtimewaschosenasfourimpactfactors.BETsurfacearea,poresizedistributionandSEMphotographywasanalyzedtoevaluatetheperfor-manceofsludgeactivatedcarbon.Thepaperalsostudiedtheeffectsofsludgeactivatedcarbonasanadsorbentforwastewatertreat-ment.ResultsindicatedthattheoptimalconditionswerefortypercentconcentrationsolutionofZnCl2-immersedsludgepyrolyzedat600℃for20mininaratioof1∶2.Themaximaliodinevalueofsludgeactivatedcarbonwas514～542mg/gandBETsurfaceareawas193～256m2/g.Macropore,mesoporeandmicroporevolumewas0.39～0.53mL/g,0.10～0.15mL/g,0.15～0.23mL/g,respectively.WhensludgeactivatedcarbonwasusedasanadsorbentfordisposalofwastewaterofwhichCODwas2400mg/Landchromawas250,theremovalefficiencyofCODwasmorethan87%andtheremovalefficiencyofchromawasmorethan80%.Keywords:sewagesludge;sludgeactivatedcarbon;resourceutilization;wastewatertreatment .,,,,,1t,20002000t(96%)[1].、(、)[2,3],、、、,,,、[4].,,.,,,、、.1 1.1 ,,,,.Ni、Cd、Cr、Pd、Cu、Zn(GB/T15555.2-1995、GB/T15555.6-1995、GB/T15555.9-1995),As2520046 ENVIRONMENTALSCIENCEVol.25,Sup.June,2004DOI:10.13227/j.hjkx.2004.s1.010.1,《》(GB5085.3-1996),Cu、Cr、Cd、Zn《》(GB4284-84),.,2,,.1 Table1 HeavymetalconcentrationofsewagesludgefromDongjiaowastewatertreatmentplantinTianjin1)/mg·L-1/mg·L-1(GB5085.3-1996)2)/mg·kg-1/mg·kg-1(GB4284-84)pH6.5pH6.5Cu()2.5501801250500Pb()0.123.01003001000Cr6+/(Cr)0.0571.5(821)6001000Cd()0.070.394520Ni()2.42562100200Zn()9.35010565001000As()0.0141.53.475751)GB/T15555.1-15555.11 2),.2 Table2 CharacterofsewagesludgefromDongjiaoWastewaterTreatmentPlantinTianjin/%/%()C/%()/kJ·kg-181.3357.33～59.3745.02～50.6713030.11.2 (1) ,..2,57.33%～59.37%,,、、,,(ZnCl2、FeSO4、K2S),,.、、、()、.(2) ,2%,10%;24h,(105℃)30min,,.、、.,1. ZnCl21 Fig.1 Flowchartofsludgeactivatedcarbonpreparation1.3 ,,COD.1.4 (1) NOVA2000、、.(2) S5000N(SEM).2 2.1 、、[6～13],43,.4:t、t、D()c,3:500℃、550℃、600℃;15、20、25min;1∶1、1∶2、1∶3;30%、40%、50%,3.Rj,:,.(1) 2,,525℃～625℃,,600℃,,,,,,.,,49 ,,,,,.,,,.3 Table3 OrthogonalexperimentofsewagesludgeforactivatedcarbonDc/%t/℃t/min/mg·g-111∶1306001545121∶2304002025131∶3305001026541∶1404001025551∶2405001534561∶3406002051471∶1505002028381∶2506001031791∶35040015198M1j9899671282994M2j91311147041048M3j977798893837Rj3705552192862667(1∶2,ZnCl240%,20min)2 Fig.2 Theeffectofpyrolyzedtemperatureoniodinevalue (2) 3,,,.10min,,,20min.(1∶2,600℃,40%)3 Fig.3 Theeffectofpyrolyzedtimeoniodinevalue (3) 4,50%,.,,.、、,,.,,,,.,,,,40%.(1∶2,40min,600℃)4 Fig.4 Theeffectofactiveagentconcentrationoniodinevalue (4)(D)5,D1∶2～1∶3,,,1∶2.(500℃,40%,10min)5 Fig.5 Theeffectofsolid/liquidmassratiooniodinevalue ,:40%、20min、600℃、1∶2,512～542mg/g.2.2 (1) 14～204.,、、0.39～0.53mL/g、0.10～0.15mL/g、0.15～0.23mL/g,193～269m2/g.50 254 Table4 BETsurfaceareaandporesizedistributionofsludgeactivatedcarbon/mg·g-1BET/m2·g-1/mL·g-1/mL·g-1/mL·g-113171930.420.110.1523452050.390.150.1834512380.450.100.2245422690.530.130.23 (2)(SEM) 6.,,.6 SEMFig.6 SEMphotographyofsludgeactivatedcarbon2.3 [14]SEM,5g,250mL,UASBCOD2400mg/L、250100mL、150mL、200mL、250mL、300mL,24h,COD,COD87%～95%,80%,,.2.4 (GB/T15555.2-1995、GB/T15555.6-1995、GB/T15555.9-1995)Ni、Cd、Cr、Pd、Cu、Zn、As,,,.,.3 、、,、、,,,,,.:[1] .[M].:,2002.[2] LitzN.Assessmentoforganicconstituentinsewagesludge[J].WaterScienceandTechnology,2000,142(9):89～192.[3] MininniG,etal.PartitioningofCr,Cu,PbandZninsewagesludgeincinerationbyrotarykilnandfluidizedbedfurnaces[J].WaterScienceandTechnology,2000,14(8):61～68.[4] ChargePC,YouJH.Useofsewagesludgeformanufacturingadsorbents[J].Can.J.Chem.Eng.,1987,65(6):922～927.[5] .[M].:,2001.73～74,122～124,166～202.[6] JeyaseelanS,LuGQ.Developmentofadsorbent/catalystfrommunicipalwastewatersludge[J].WaterSci.Tech.,1996,34(3-4):499～505.[7] CalvoLF,etal.Upgradingsewagesludgeforadsorbentprepa-rationbydifferenttreatments[J].BioresourceTechnology,2001,80:143～148.[8] Z.Abu-Kaddourah,etal.Effectofhightemperaturemeltingontheporosityandmicrostructureofsludgefromdomesticsewagesludge[J].WaterScienceandTechnology,2000,141(8):99～105.[9] Hung-LungChiang,Ching-GuanChoa,Shi-YuChen.Thereusebiosludgeasanadsorbentfromapetrochemicalwastewatertreat-mentplant[J].JournaloftheAirandManagementAssociation,2003,53:1042～1053.[10] ,,.[J].,1997,13(4):10～13.[11] .[J]