,,,(,230009)[],、,。、、、,:,40℃,40min,n(Ca)∶n(Al)∶n(Cl)5∶3∶1,80.05%,193mg/L,200mg/L。[];;[]X703.1[]A[]1005-829X(2015)05-0038-04Experimentalresearchonchlorideremovalfromwaterbyultra-highlimewithaluminumprocessChengZhilei,YangBaojun,TangHuawei,HouLiping(SchoolofChemicalEngineering,HeifeiUniversityofTechnology,Hefei230009,China)Abstract:Usingultra-highlimewithaluminumprocess,calciumoxideandsodiumaluminateareaddedtochloride-containingwastewater,soastomakecalciumions,aluminumionsandchlorideionsforminsolubleprecipitate.Thepurposeofchlorideionsremovingcanthusbeachieved.Theeffectsofalltheparametersontheremovalofchlorideionsfromthesolutionareinvestigated.Theresultsshowthatultra-highlimewithaluminumprocesscaneffectivelyremovechlorideions.Whenthetemperatureis40℃,stirringtime40min,andn(Ca)∶n(Al)∶n(Cl)5∶3∶1,thechlorideionremovingratecanreach80.05%andthemassconcentrationoftreatedchlorideionsis193mg/L,reachingthestandardthattherecycledwaterrequiresthechlorideionsshouldbelowerthan200mg/L.Keywords:utra-highlimewithaluminumprocess;chlorideions;Freund’ssalt〔1〕,。,、,!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!8,,:(1)。(2)、。(3)。(4),。(5),。(6),。[1].[M].:,2006:28.[2],.[M].:,2006:101.[3].、[D].:,2011.[4].[J].,2011,35(4):125-129.———————————[](1989—),。E-mail:ygbx_21@sina.com。[]2015-04-17()35520155IndustrialWaterTreatmentVol.35No.5May,201538、。〔2〕。,,,〔3-4〕。、,〔5〕,,,Ca4Al2Cl2(OH)12,。1897P.M.FriedelAlCl3〔6〕,Ca4Al2Cl2(OH)12,〔Ca2Al(OH)6〕+〔Cl-,2H2O〕,〔Ca2Al(OH)6〕+,〔Cl-,2H2O〕。,、、。11.1,25mmol/L(887.5mg/L)。300mL,,,,、、,,XRD、SEM。,。1.2:PXS-270(0.1mV),;PCl-1-01232-1,;8020,;D/MAX2500VX,。:()、()、(),。1.3,pHpH,X,SEM。22.130℃,n(Ca)∶n(Al)∶n(Cl)2∶1∶1,10、20、30、40、50、80、100、120min,:40min,;40min,;40min,,50min,。,Ca4Al2Cl2(OH)12,,Ca3Al2(OH)12,。40min。2.240min,n(Ca)∶n(Al)∶n(Cl)2∶1∶1,30、40、50、60、70℃,:40℃,。40℃,,40℃,。40℃,A.K.Suryavanshia〔7〕,A.Abdel-Wahab〔8〕40℃。40℃。2.3n(Ca)∶n(Cl)40min,40℃,n(Ca)∶n(Cl)2、3、4、5,,,1。11,。n(Ca)∶n(Cl)2、3、4、52015-05,35(5),:39,,n(Al)∶n(Ca)=2.5。,Al(OH)4-,Ca4Al2Cl2(OH)12。n(Ca)∶n(Al)∶n(Cl)5∶3∶1,80.05%。2.4n(Al)∶n(Cl)40min,40℃,n(Al)∶n(Cl)1、2、3、4,,,2。22,n(Al)∶n(Cl)1,n(Ca)∶n(Cl)2、3、4、5,44.28%、47.28%、48.48%、50.01%。,,n(Al)∶n(Cl)≥2,,。,,。,。,。2.5XRDXRD3。3,11.8°、22.8°、31.2°。,Ca4Al2(OH)14、Ca4Al2Cl2(OH)12、Ca3Al2(OH)12。XRD,、,。,Ca4Al2Cl2(OH)12,。3XRD2.6SEMSEM4。4SEM4,。〔6-8〕,,〔Ca2Al(OH)6〕+,Cl-〔Cl-,2H2O〕,。,〔9-10〕。2.73XRD,3,Ca4Al2Cl2(OH)12、Ca3Al2(OH)12Ca4Al2(OH)14。,,〔11〕:Ca4Al2Cl2(OH)12+2OH-=Ca4Al2(OH)14+2Cl-3Ca4Al2Cl2(OH)12+2Al(OH)4-+4OH-=4Ca3Al2(OH)12+6Cl-3Ca4Al2(OH)14+2Al(OH)4-=4Ca3Al2(OH)12+2OH-〔12-14〕Ca4Al2(OH)142015-05,35(5)4010-25.02,Ca4Al2Cl2(OH)1210-27.10,OH-F-Cl-Br-NO3-,Ca4Al2Cl2(OH)12,Ca4Al2(OH)14,:4Ca(OH)2+2Al(OH)3=Ca4Al2(OH)14Ca4Al2(OH)14+2Cl-=Ca4Al2Cl2(OH)12+2OH-3Ca4Al2Cl2(OH)12+2Al(OH)4-+4OH-=4Ca3Al2(OH)12+6Cl-3Ca4Al2(OH)14+2Al(OH)4-=4Ca3Al2(OH)12+2OH-,,,Ca4Al2(OH)14,〔Ca2Al(OH)6〕+,OH-,,。,,Ca4Al2(OH)14OH-,Ca4Al2Cl2(OH)12。,,pH,pH。Ca4Al2(OH)14,Ca4Al2Cl2(OH)12,。2.8,。746mg/L,。40℃,40min,n(Ca)∶n(Al)∶n(Cl)5∶3∶1,193mg/L,200mg/L,40.8mg/L,200mg/L。,,1t5。〔9〕,-,、、、、、,1t9.5。,、。3(1),,,。(2)40℃,40min,n(Ca)∶n(Al)∶n(Cl)5∶3∶1,80.05%,,,。[1],,.[J].,2010,23(7)∶861-868.[2].[J].,1999(1)∶1-8.[3].[J].,2005,24(8)∶921-924.[4]FoleyRT.Roleofthechlorideioninironcorrosion[J].Corrosion,1970,26(2)∶58-70.[5].[J].,2010(z1)∶36-38.[6]FriedelG.Surunchloro-aluminatedecalciumhydratésemaclantparcompression[J].Bull.Soc.Fran.Minéral.,1897(20)∶122-136.[7]SuryavanshiaAK,ScantleburybJD,LyonbSB.MechanismofFriedel’ssaltformationincementsrichintri-calciumaluminate[J].CementandConcreteResearch,1996,26(5)∶717-727.[8]Abdel-WahabA,BatchelorB.Chlorideremovalfromrecycledcoolingwaterusingultra-highlimewithaluminumprocess[J].WaterEnvi-ron.Res.,2002,74(3)∶256-263.[9],,,.[J].,2001,17(6)∶835-842.[10],.[J].,2013,41(6)∶761-768.[11]Abdel-WahabA,BatchelorB.Chlorideremovalfromrecycledcoolingwaterusingultra-highlimewithaluminumprocess[J].WaterEnvi-ron.Res.,2002,74(3)∶524-526.[12]Birnin-YauriUA,GlasserFP.Friedel’ssaltCa2Al(OH)6(Cl,OH)·2H2O∶itssolidsolutionsandtheirroleinchloridebinding[J].CementandConcreteResearch,1998,28(12)∶1713-1723.[13],,,.[J].,2002,19(6)∶339-342.[14].[D].∶,2005.——————————[](1990—),。E-mail∶chengzhilei@sina.com。[]2015-04-09()2015-05,35(5),:41