城市污水处理厂污泥固化处理技术研究

©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.:,,;(),,,[e-mail]:100926094(2008)03200562043,,,,(,200240):;XRDSEM,0107kg/kg,0102kg/kg,0106kg/kg,m()m()m()m()=1010701020106,7d118MPa,:;;;;:X506:A0,5000t(75%)[1],10%[2],,,[3],[4],;;,,,,,50%,,,,[5-8][9]-[10],[11],[12],[8]Ca(OH)2,,pH,SiO2Al2O3,,,,,,,111171124%,50134%,pH8102,P.O.5215R,(0115mm)1112(SYE-300,),GB/T5086121997[13](IrisAdvangtage1000,)pH(pHS-3C,)pHX(D/max-2200/PC,JapanRigakuCorporation)(JSM-7401F,JEOL.Ltd.)2211,7d,L16(45),34,0107kg/kg,0102kg/kg,0106kg/kg,m()m()m()m()=1010701020106,11863MPa:2120107kg/kg0106kg/kg,0102kg/kg0104kg/kg0106kg/kg0108kg/kg0110kg/kg,11,,,7d14d28d0102kg/kg11785MPa31409MPa31830MPa,1%Table1Chemicalproportionofcement,PFAandcinderSi2OFe2O3Al2O3CaOMgO2310331345111631332106491304184331012198019552114121272114071951122658320086JournalofSafetyandEnvironmentVol.8No.3Jun,2008©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.[6],,0102kg/kg,,14d28d,14d,,14d2130102kg/kg0106kg/kg,0101kg/kg0103kg/kg0105kg/kg0107kg/kg0109kg/kg,22,7d,0101kg/kg11808MPa0109kg/kg21194MPa14d28d,0101kg/kg21564MPa31255MPa0109kg/kg21250MPa21404MPa,28d,14d,,,0101kg/kg,7d28d1112MPa;0109kg/kg,7d28d012MPa,,,1Fig.1EffectsofPFAcontentoncompressedintensityofthesolidificationblock2Fig.2Effectsofcementcontentoncompressedintensityofthesolidificationblock2140107kg/kg0102kg/kg,0102kg/kg0104kg/kg0106kg/kg0108kg/kg0110kg/kg,33,7d0106kg/kg,1184MPa14d28d,,14d28d,14d215,,,71124%76120%77171%77178%79128%0107kg/kg0102kg/kg0106kg/kg,44,7d14d28d7112%21062MPa21409MPa21635MPa7913%01622MPa11818MPa11960MPa,,,71124%,7d28d0158MPa;79128%,3Fig.3Effectsofcindercontentoncompressedintensityofthesolidificationblock4Fig.4Effectsofwithwatercontentinsludgeoncompressedintensityofthesolidificationblock7520086,:Jun,2008©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(mgg-1)/(mgL-1)7d/(mgL-1)14d/(mgL-1)28d/(mgL-1)[14]/(mgL-1)As01069345010560115Ba01640476011710011350011289011099100Cd01007083013015010504010467010402013Cr0136398801059101052501041601028510Cu0150845201397201290401050101001950Ni0110932011350011023001266801239310Pb010945240123100108920103190100773Zn21738690012560012117012115011212507d28d1117MPa,,,216ICP-AES7d14d28d22,,,217X5628dXRDSEM5,,6,,31),:0107kg/kg,0102kg/kg,5XRDFig.5XRDspectraofthesolidificationblock0106kg/kg7d118MPa2);,3)XRDSEM,,References():[1]CHENGQianzhen().Talkingaboutrecyclinguseanddisposalmethodsofsludge[J].JiangsuEnvironmentalScienceandTechnology(),2006,19(2):127-12916SEMFig.6SEMphotosofthesolidificationblock85Vol.8No.383©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.[2]HUANGYaxi(),LIJi(),LIGuoxue().AnalysisoncurrenttreatmentandutilizationofsludgeinChina[J].JournalofAgro2EnvironmentScience(),2003,22(6):765-7681[3]CHENHua(),ZHUShiqing(),ZHANGShanfa().RecyclingofslurrydischargedbyShanghaiUrbanSewageTreat2mentPlantandsimpleanalysisofitsmarketdemand[J].PublicUtilities(),2006,20(1):25-291[4]XUQin().Studyofprojectapplicationofsludgelandfill[J].EnvironmentalSanitationEngineering(),2006,14(4):51-521[5]WANHui().Talkingaboutsludgecementsolidificationtechnology[J].Construction&DesignforProject(),2001,170(6):21-221[6]LILei(),ZHUWei(),LINCheng().Experimentalstudyonsludgesolidificationbyusingskeletonconstructionmethod[J].ChinaWater&Wastewater(),2005,21(6):41-431[7]CAOYonghua(),YANShuwang(),YANGChangmin().Testonmethodstosolidifywastewatersludge[J].JournalofTianjinUniversity(),2006,39(2):199-2031[8]KIMEH,CHOJK,YIMS.Digestedsewagesludgesolidificationbyconverterslagforlandfillcover[J].Chemosphere,2005,59:387-3951[9]VALLSS,VAZQUEZE.stabilizationandsolidificationofsewagesludgewithportlandcement[J].CementandConcreteResearch,2000,30:1671-16781[10]MALLIOUO,KATSIOTIM,GEORGIADISA,etal.Propertiesofstabilized/solidifiedadmixturesofcementandsewagesludge[J].Cement&ConcreteComposites,2007,29:55-611[11]VALLSS,VAZQUEZE.Leachingpropertiesofstabilized/solidifiedcement2admixtures2sewagesludgesystems[J].WasteManagement,2002,22:37-451[12]CHEILASA,KATSIOTIM,GEORGIADESA,etal.Impactofhard2eningconditionsontostabilized/solidifiedproductsofcement2sewagesludge2jarosite/alunite[J].Cement&ConcreteComposites,2007,29:263-2691[13]GB/T508619971Testmethodstandardforleachingtoxicityofsolidwaste:horizontalvibrationextractionprocedure()[S].[14]GB50851319961Identificationstandardsforhazardouswastes2identificationforextractiontoxicity()[S].NewtechnologyforsolidifyingsewagesludgeCHECheng2dan,ZHUNan2wen,LIYan2lin,ZHAOLing,YEQing(SchoolofEnvironmentalScienceandEngineering,ShanghaiJiaoTongUniversity,Shanghai100240,China)Abstract:Thepresentpaperattemptstointroduceanewtechnologyforsewagesludgesolidificationbytakingcement,PFAandcinderasthesolidifyingagent.Thesaidtechnologyhasbeendevelopedthroughcompressiveanalysisofthestrengthofsolidifi