[](05-K2-20);(20082X07421-002)ResearchonthedefluoridationcapacityandregenerationofmodifiedactivatedaluminaWangDongtian,YinFangping,YangLan(ProvincialKeyLaboratoryofEnvironmentalScienceandEngineering,SuzhouUniversityofScienceandTechnology,Suzhou215011,China),,(,215011)[]。:2.3;。、。83.44%。6.4,。[];;;[]TQ085+.41[]A[]1005-829X(2010)06-0055-04Abstract:Thedefluoridationcapacityofactivatedaluminamodifiedwithsodiumhydroxideandtheregenerationofactivatedaluminahavebeenstudied.Theresultindicatesthatthesaturatedadsorptioncapacityoftheactivatedalu-minamodifiedwithsodiumhydroxideis2.3timesofthatofunmodifiedactivatedalumina.Sodiummetaaluminateasaregeneranthasbetterregenerationeffectontheactivatedaluminathatissaturatedandhasadsorptioncapacity.Atthesametime,theeffectoftheconcentrationofsodiummetaaluminateandregenerationtimeonthedefluoridationcapacityofactivatedaluminaafterbeingregeneratedhasbeenstudied.Thestaticsaturatedadsorptioncapacityofthemodifiedactivatedaluminaafterbeingregeneratedis83.44%ofthatofmodifiedactivatedaluminabeforebeingregenerated.Thedynamicexperimentsshowthattheeffectiveadsorptiontimeofmodifiedactivatedaluminumis6.4timesoftheunmodifiedactivatedalumina.Themodifiedactivatedaluminaafterbeingregeneratedalsohasagoodadsorptioneffect.Keywords:activatedalumina;sodiumhydroxide;sodiummetaaluminate;defluoridation,、、,〔1-2〕。1.0mg/L,,4mg/L,〔3〕。,〔4-5〕。〔6-7〕,。,〔8-9〕,。11.13~4mmγ,、、、、、、、,。1.2〔10〕,y=-0.0184x+30620106IndustrialWaterTreatmentVol.30No.6Jun.,201055——2010-06,30(6)4.2604,R2=0.9986,。22.1。,100mL0.25mol/L,1h,100mL0.20mol/L0.5h,500℃2h,。2.25g10.00mg/L、200mL,,,。2.350g,、、、。2.4。1000mm,40mm,50mm,,6mm,,,。7,1—7,200、300、400、500、600、700、800mm,6mm。33.1,。1。1,6.0h,10.00mg/L4.70mg/L,0.21mg/g;6.0h,0.84mg/L,0.37mg/g,1.8。,,。3.2、、、、,。2。2,,,6.0h10.00mg/L5.21mg/L。、、,6.0h3.8~4.8mg/L。,6.0h2.72mg/L,0.29mg/g,78.96%,。3.33.3.10.25、0.50、0.75mol/L3,1.0h,0.40mol/L0.5h。3。56——2010-06,30(6)3,0.25mol/L,8.0h0.14mg/g。。0.50、0.75mol/L,0.50mol/L0.24mg/g,0.50mol/L。3.3.20.50mol/L,0.5、1.0、1.5、2.0、2.5、3.0h,0.4mol/L0.5h。1.0h6.0h4。4,1.0h6.0h,1.0h。6.0h0.23mg/g,。1.0h。3.4(A)、(B)、(C)(D)5g,200mL300.00mg/L,,1。1,(A)15.0h,3.22mg/g;(B)25.0h,7.37mg/g,2.3,。,,,,〔12〕。(C)20.0h,5.20mg/g,(A)1.6。(D),6.15mg/g,(B)83.44%,,(B),,。3.5(A)、(B)、(C)(D),5。,2.5L/h。10.00mg/L,pH7.8,26℃。1~7。71.00mg/L,。5,,。,。,,。2。1/(mg·L-1)/h/(mg·L-1)/(mg·g-1)A300.0015.0219.503.22B300.0025.0115.727.37C300.0020.0170.085.20D300.0025.0146.246.15,:57——2010-06,30(6)(A)5.0h,0.54mg/g;(B)32.0h,3.50mg/g,(A)6.4,(B)(A);(C)6.0h,0.64mg/g;(D)32.0h,3.47mg/g,(B),。4(1),2.3,。(2),,1.6。(3),83.44%。(4),10.00mg/L,1.00mg/L,6.4,,,。[][1].[J].,2005,19(1):40-42.[2].[J].:,2008,26(1):81-84.[3],.[J].,2003,8(4):63-65.[4],.[J].,2002,28(12):26-29.[5],,,.[J].,2002,21(3):16-19.[6],,.[J].,2006,32(1):1-5.[7],,,.[J].,2005,51(4):457-460.[8],,.[J].,2004,5(5):397-398.[9].[J].,1986,14(8):602-604.[10],.[J].,2005,24(3):15-18.2/(mg·L-1)/h/(mg·L-1)/(mg·g-1)A10.005.01.000.54B10.0032.01.003.50C10.006.01.000.64D10.0032.01.003.47[](1965—),1998,,。:13776046698,E-mail:dongtianw@163.com。[]2009-12-08()———,,,.CN101172683···············································。:PAFC1~3,FeCl31~6,HCA0~0.3mg/L。:150~300r/min,(1)PAFC;(2)5~20sFeCl3;(3)30~60sHCA;(4)60~90s,30~50r/min,10~20min,。,、,PAFC、。———.CN101139142,、,,,。,,,,“”,,,,。,99%;,,,。()58——