复合铁铝吸附剂的制备及对水中痕量磷的去除杨艳玲

:2008-05-08:(50378004);(8082009);(2005038040);(05004014200701):(1964—),,,;E-mail:[e-mail].29　120091TransactionsofBeijingInstituteofTechnologyVol.29　No.1Jan.2009杨艳玲,　李星,　范茜(,　100124)　:,、pH、.,,,,3.5;,;CO32-,CO32-PO43-.:;;;:TU991.2　　　:A　　　:1001-0645(2009)01-0073-04PreparationofIron-AluminumCompositedAdsorbentandtheRemovalTracePhosphorusYANGYan-ling,　LIXing,　FANQian(BeijingKeyLaboratoryofWaterQualityScienceandWaterEnvironmentRecoveryEngineering,BeijingUniversityofTechnology,Beijing100124,China)Abstract:Iron-aluminumcompositedadsorbentwaspreparedbyco-precipitationmethodandtheinfluenceofphosphorusconcentration,pHvalue,temperatureandinterferingionstophosphorusremovalwerestudied.Theresultsshowedthattheadsorbentpossessremarkableeffectsonphosphorusremoval.Withincreasedphosphorusconcentration,adsorptioncapacityoftheadsorbentkeptarenarhedgrowth.Inthesameconditions,theadsorptioncapacityoftheadsorbentwas3.5timescomparedwiththatofactivatedalumina.Phosphorusadsorptionremainedmainlychemicaladsorption.Thereweresimultaneouslynon-special-adsorptionandstrongspecial-adsorptionintheadsorbentsurface.CO32-hadsignificanteffectinthephosphorusremovaloftheadsorbent.ThereexistedcompetitiveadsorptionbetweenCO32-andPO43-ontheparticlesurface.Keywords:iron-aluminumcompositedadsorbent;adsorption;tracephosphorus;drinkingwatertreatment　　　,.,[1-4].,,,,,[5-6].Fe(Ⅲ)、Al(Ⅲ),DOI:10.15918/j.tbit1001-0645.2009.01.012,、,.1　1.1　KH2PO4120℃,,PO43--P.1.2　FeCl3、AlCl3NaOH,.FeCl3AlCl3,NaOH,pH9,3h,;110℃,;320,.1.3　.25℃,150r/min,.-[7].2　2.1　0∶10,1∶9,2∶8,3∶7,4∶6,5∶5,6∶4,7∶3,8∶2,9∶1;10∶0110,1,2,3,4,5,6,7,8,910.0.002g200μg·L-1100mL,6h(1).1　Fig.1　InfluenceofFe-Almolarfractionratioonphosphorusremovalbyadsorption　,,.,、、,[8].,2～50μm,184.45m2·g-1,(20.16m2·g-1)9.15,Al(Ⅲ)Fe(Ⅲ),,、,[9].,6,9.52mg·g-1,6∶4.2.2　2.2.1　2,.,23h,0.01g·L-1.,,,,,,300μg·L-1,21.16mg·g-1,(6.05mg·g-1)3.5.2　Fig.2　Influenceofphosphorusconcentrationonadsorptioncapacity　2.2.2　Fe-Al-6,;,[10].,15℃,25℃35℃,89.96%,96.18%98.13%,,7429,PO43-,,;,,PO43-,,PO43-,.2.2.3　pHpH,,.pH(3),pH,,pH,.Zeta[8],6.2,pH6.2,PO43-.,,(pH=8.578.94%),-.3　pHFig.3　InfluenceofpHvalueonphosphorusremoval　2.2.4　,,200μg·L-1,NaNO3,NaCl,Na2CO3,Na2SO4,NO3-,Cl-,CO32-,SO42-2000μg·L-1(4),,,CO32-.CO32-96.18%62.60%.,4　Fig.4　Influenceofinterferingionsonphosphorusremoval　,,,Cl-,SO42-,NO3-;CO32-P,.CO32-PO43-,CO32-,.3　　6∶4;,3.5;,;pH,;CO32-,CO32-PO43-,.:[1]OzacarM.Adsorptionofphosphatefromaqueoussolu-tionontoalunite[J].Chemosphere,2003,51(4):321-327.　[2]SeidaY,NakanoY.Removalofphosphatebylayereddoublehydroxidescontainingiron[J].WatRes,2002(3),36:1306-1312.[3],,,.[J].,2003(1):52-55.DengCong,DengChunling,YangYuxi,etal.Thetechnologyonremovalofphosphorusfromthewastewater[J].YunnanEnvironmentalScience,2003(1):52-55.(inChinese)(下转第84页)751:fuzzypreferencerelationsanduncertainnumbercomple-mentaryjudgmentmatrix[J].TransactionsofBejingIn-stituteofTechnology,2005,25(10):856-860.(inChi-nese)[6],.Ⅰ[J].,2005,25(10):60-66.　HouFujun,WuQizong.Consistencyandrankingmeth-odforⅠtypeuncertainnumbercomplementaryjudg-mentmatrix[J].SystemEngineeringTheoryandPrac-tice,2005,25(10):60-66.(inChinese)[7],.[C].3,:Global-LinkPublisher,2005,142-146.HouFujun,WuQizong.Goalprogramming-basedmethodforalternativesrankingofintervalnumbercom-plementaryjudgmentmatrix[C]∥Proceedingsofthe3rdChinaAnnualConferenceonUncertainty,HongKong:Global-LinkPublisher,2005:142-146.(inChinese)[8]HouFujun,WuQizong.Rankingmethodforcomple-mentaryjudgmentmatrixwithfuzzynumbersbasedonhausdorffmetricdistance[J].JournalofBeijingInstituteofTechnology,2005,14(4):458-461.[9],.[J].,2005,35(4):46-55.HouFujun,WuQizong.Studyonconsistencyofhybridcomplementaryjudgmentmatrix[J].MathematicsInPracticeandTheory,2005,35(4):46-55.(inChinese)[10],.[J].,2004,24(4):367-372.HouFujun,WuQizong.Additiveconsistencyofcom-plementaryjudgmentmatriceswithfuzzynumbers[J].TransactionsofBejingInstituteofTechnology,2004,24(4):367-372.(inChinese)[11],.[C]∥2,:Global-LinkPublisher,2004:258-264.HouFujun,WuQizong.Studyontheconsistencyoftriangularfuzzynumbercomplementaryjudgmentma-trix[C]∥Proceedingsofthe2ndChinaAnnualConfer-enceonUncertainty,HongKong:Global-LinkPub-lisher,2004:258-264.(inChinese)(责任编辑:康晓伟)(上接第75页)[4],,,.[J].,2005.23(12):121-124.NingPing,LiBin,YangYuehong,etal.Rareearthsorbentfordynamicphosphateremovalinslightlypollu-tedwater[J].JournaloftheChineseRareEarthSocie-ty,2005,23(12):121-124.(inChinese)[5],.-[J].,2004,20(9):5-8.DingWenming,HuangXia.SynthesisofFe-Cehydrox-idesadsorbentforphosphateremovalandmechanismofhigh-efficientadsorption[J].ChineseWater&Wastewater,2004,20(9):5-8.(inChinese)[6]AgyeiNM,StrydomCA,PotgietercJH.Theremovalofphosphateionsfromaqueoussolutionbyflyash,slag,ordinaryportlandcementandrelatedblends[J].CementandConcreteResearch,2002,12(32):1889-1897.　[7],,,.[J].,2007,39(2):322-325.YangYanling,LiXing,SunLixin,etal.Themeasure-mentoftraceamountphosphorusinpotablewater[J].JournalofHarbinInstituteofTechnology,2007,39(2):322-325.(inChinese)[8],,,.(Ⅴ)[J].,26(3):438-446.LiangMeina,LiuHailing,ZhuYinian,etal.Removalofarsenate