化工污泥与粉煤灰制备水处理填料的研究徐学骁

3《》20081。“”《》[1]。“＋”[2]。。“”。30%60%《》[e-mail]*[e-mail]。EnvironmentalScience&Technology39320163Vol.39No.3Mar.201611*121./2100092.210037。∶∶∶30∶40∶30∶7.51160℃、10min0.445g/cm32.6%。70%。《-》GB5085.3-2007。X705Adoi10.3969/j.issn.1003-6504.2016.03.0181003-6504(2016)03-0095-05ResearchofWaterTreatmentFillersMadebyChemicalSludgeandFlyAshXUXuexiao1XUYanhua1*YUMinjie1HUJun21.JiangsuKeyLaboratoryofIndustrialWaterConservationandEmissionReductionCollegeofEnvironmentNanjingUniversityofTechnologyNanjing210009China2.CollegeofBiologyandEnvironmentNanjingForestryUniversityNanjing210037ChinaAbstractThewatertreatmentfillerwasobtainedbyroastingchemicalsludgeandflyashinordertoachievethereclamationandreuseofchemicalsludge.Performanceofcarrierwastestedunderdifferentconditions.Bytheexperimentalresultsthebulkdensitywas0.445g/cm3andthesumoffailurerateandwearratewas2.6%whentheratioofadditionofclay∶driedsludge∶flyash∶ricehuskwas30∶40∶30∶7.5andthemixedmaterialwasroastedfor10minutesunderthecalcinationtemperatureof1160℃.Therecyclingratewasupto70%whichindicatedthatchemicalsludgeandflyashcanberoastedtopreparewatertreatmentfillerofhighperformance.BytestingtheleachingconcentrationsofheavymetalsaremuchlowerthantheregulatedlimitvalueinIdentificationStandardforHazardousWaste-IndentificationforExtractionToxicityofGB5085.3-2007.Thefillersshowgoodbiocompatibilityduringtheactualusingprocess.Keywordschemicalsludgeflyashwatertreatmentfiller39[3]。[4-6]。[7][8]BAF。SiO248%～68%Al2O310%～25%[9]。。、“”、“”。11.183.8%w%pH=6.342000kJ/kg。105℃100。12。57.3%24.94%1.21%。。63.91%17.37%8.78%。1.2A11IKADHG-9033BS-KSL-1200XPE5300DVJSM-5900。1.3、。。10mm。12h105℃2h。。1.4、。GB/T17431.2-2010《-2》[10]、。SEM。GB5058.3-2007《-》[11]。《》NH3-N[12]。22.12.1.1。SiO2、Al2O3SiO2、Al2O3。。。1∶1、5%、、1160℃、10min1。130%25%。1Table1Thechemicalcompositionofdrysludge%SiO2Al2O3Fe2O3CaOMgONa2OK2OΣ19.510.93.518.831.540.670.3254.731002Table2Heavymetalcontentofdrysludgemg/kgCuZnCdCrPbNiAs28074246113.5767.71059415.13。30%。25%3.97%。。。30%。2.1.2。。。。。30%、5%、、1160℃、10min2。240%30%。50%20%。。1.65%2.71%。30%。40%30%。2.1.3。。30%、40%、30%、1160℃、10min、3。3。0.481g/cm310%0.424g/cm3。。7.5%。10%6.42%。。7.5%。2.1.4、[13]。。。30%、40%、30%、7.5%、、10min4。394。1160℃0.445g/cm31180℃0.489g/cm3。1140℃1180℃。K2O-Al2O3-SiO2、Na2O-Al2O3-SiO2、FeO-Al2O3-SiO2、CaO-Al2O3-SiO2[14]。。。。1160℃。2.1.530%、40%、30%、7.5%、、、1160℃5。5。。。GB/T17431.2-2010《-2》10min。30%、40%、30%、7.5%、、1160℃、10min。0.445g/cm32.6%GB/T17431.2-2010《-2》。70%。2.26。6。。。2.3《》HJ/T299-2007。PE5300DV33Table3Heavymetalleachingvaluesandorganictoxicantsvaluesoffillersmg/LCuZnCdCrPbNiAsa0.110.90—0.05—0.52———1001001155550.00030.0023。3《-》。。2.4。[15]500mg/L。21dCODNH3-N85%35%。CODNH3-N。3130%、40%、30%、7.5%、、1160℃、10min。0.445g/cm32.6%。。2。。《-》。3。COD85%35%。70%。[][1].2013[R].2013.[2].[J].2014377133-136.YuMinjieHujunLiXietal.Thepreparationofchemicalsludgebaseoflightweightfiller[J].EnvironmentalScience&Technology2014377133-136.inChinese[3].[J].201142441-43.HuangQian.Analysisofdevelopmentprospectsandstatusquoofcomprehensiveutilizationofflyashathomeandabroad[J].ChinaWellandRockSalt201142441-43.inChinese[4]IyerRSScottJA.Powerstationfiyashareviewofvalue-addedutilizationoutsideofconstructionindustry[J].Re－sourcesConservationandRecycling2001313217-228.[5]AhmaruzzamanM.Areviewontheutilizationofflyash[J].ProgressinEnergyandCombustionScience2010363327-363.[6].、[J].201212421-25.XuZhenhuaLiuJianguoSongMinyingetal.Studyonsinteringceramsitetechnologybysedimentsludgeandflyash[J].JournalofSafetyandEnvironment201212421-25.inChinese[7].-[J].20104161097-1105.QiYuanfengYueQinyanYueMinetal.Preparationofultralightwatertreatmentpackingbyflyash[J].FunctionalMaterials20104161097-1105.inChinese[8].BAF[J].201230262-266.LiuZishuHuangXuMaFangetal.Preparationofun－burnedflyashceramsiteforBAF[J].JournalofEnvironmen－talEngineering201230262-266.inChinese[9]RileyCM.RelationofChemicalPropertiestoBloatingofClays[R].AmericanCeramicSociety1991344121-128.[10]GB/T17431.2-2010-2[S].[11]GB5058.3-2007-[S].[12]《》.[M].4.2002.[13].[J].200822654-56.[14].[J].2014343267-271.[15].[J].200114551-54.