凹凸棒石复合吸附剂处理含锌电镀废水的研究付桂珍

32　19201010武　汉　理　工　大　学　学　报JOURNALOFWUHANUNIVERSITYOFTECHNOLOGYVol.32　No.19　Oct.2010DOI:10.3963/j.issn.1671-4431.2010.19.024付桂珍,武素华(,430070)　:　以凹凸棒石和粉煤灰为原料,添加一定量的粘结剂混合造粒制成复合颗粒吸附剂,用于处理含Zn2+废水。实验研究了吸附材料的投加量、吸附反应时间及pH值对颗粒复合材料对锌离子吸附去除率的影响。通过正交试验研究得出凹凸棒石/粉煤灰颗粒复合材料优化吸附工艺条件为:颗粒吸附材料投加量为0.05g/mL,溶液pH为8,吸附反应时间为60min。处理含锌离子浓度为13.86mg/L的电镀废水,锌离子去除率达到87.79%,处理后残留锌离子浓度为1.692mg/L,达到国家污水综合排放一级标准。:　凹凸棒石;　粉煤灰;　锌;　吸附:　X703:　A:1671-4431(2010)19-0098-04ResearchonTreatmentofZinc-containingElectroplatingWastewaterbyAttapulgiteandFlyAshParticulateCompositeFUGui-zhen,WUSu-hua(SchoolofResourcesandEnvironmentalEngineering,WuhanUniversityofTechnology,Wuhan430070,China)Abstract:　Particulatecompositewerepreparedbyusingthemixtureofattapulgite,flyashandamountofcementingagent.Theparticulatecompositewasusedtotreatwastewater-containingZn2+.Theeffectsofdosageofparticulatecomposite,absorp-tionreactiontime,andpHontheratioofremovingzincwereinvestigated.Theoptimizeadsorptiontechnologicalconditionofthepreparationofattapulgiteandflyashparticulatecompositeareasfollows:dosageofparticulatecompositeis0.05g/mL,thepHofsolutionis8,absorptionreactiontimeis60min.Theratioofremovingcanbeupto87.79%andtheremainingzincionconcentrationis1.692mg/L,whichisbelowthenationalsewagedischargeprimarystandard.Keywords:　attapulgite;　flyash;　zinc;　adsorption:2010-05-22.:(G0508)(02052).:(1963-),,,.E-mail:[e-mail](Attapulgite)。。(0.01μm×1μm)、[1]。、、,,[2]。,,pH,,[3]。、,。,,,,,,,,[4]。/,,,,,、、。1　　1.1　,,SiO2,Al2O3,MgO,H2O;SiO2:55.6%,Al2O3:9.0%,Fe2O3:6.70%,TiO2:0.63%,CaO:1.95%,MgO:11.35%,K2O:1.30%,Na2O:0.11%,MnO:0.63%,:11.80%,:99.05%。。XSiO2,Al2O3,MgO,H2O;SiO2:38.66%,Al2O3:20.86%,Fe2O3:4.25%,TiO2:0.98%,CaO:18.94%,MgO:1.21%,K2O:1.81%,Na2O:0.42%,SO3:3.33%,P2O5:0.35%,:8.64%,:99.45%。、、、,,24h,1～2mm,,40min,105℃40min,30min,。1.2　,,,。(ZnSO4·7H2O),(C6H8O6),(NH4F),L-(NH4F),L-(L-C6H12N2O4S2),(CH3COONa),(CH3COOH),(C31H32N2O13S),AR。2　2.1　pH100mL5250mL,pH2,4,6,8,10,/,5120r/min60min,。1。1,pH/。pH=2,;pH7,;pH=6,85.20%,2.05mg/L,pH=8,88.11%,1.65mg/L。/。2:1),pH,;2),pH,。pH=7。2.2　100mL5250mL,pH=7,1g,3g,5g,7g,9g/,5120r/min60min,。2。2:/,。,,0.05g/mL,87.30%,1.76mg/L;0.05g/mL,。0.05g/mL。2.3　100mL5500mL,pH=7,/,5120r/min9932　19　　　　　　　,:　　　　　　　　20min,40min,60min,80min,100min,。3。3:,。20min40min,,40min,87.95%,1.67mg/L;40min,。t=40min。2.4　　　(pH、、)/,,/。,/,33[5]。1。2。2:/。3:pH,/,,。1　ApHB/minC/(g·mL-1)14400.0326600.0538800.072　/(g·mL-1)/minpH/%1#0.0340431.562#0.0360653.213#0.0380879.874#0.0540668.565#0.0560887.796#0.0580483.917#0.0740884.078#0.0760485.699#0.0780686.49154.961.467.1280.175.669.4385.483.483.930.522.016.8　　2,5,87.79%,1.692mg/L,(GB8978—1996)(2mg/L)。3　　,:、pH3:pH。/:0.05g/mL,60min,pH8。Zn2+13.86mg/L,。100　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　201010[1]　.[J].,1980,25(11):513-515.[2]　,　.[J].,2001,29(6):33-37.[3]　　,,　,.[J].,2007,21(6):58.[4]　,.[M].:,1998.[5]　　,,.[M].:,1995.(38)[3]　Sakural,Takeo.AluminumAlloySheetTrendsforAutomotiveBodyPanels[J].ResearchandDevelopmentKobeSteelEngi-neeringReports,2007,57(2):45-50.[4]　　,,.[J].:,2004,18(3):27-31.[5]　NeugebauerR,LoschmannF,PutzM,etal.APro-duction-orientedApproachinElectromagneticFormingofMetalSheets[C]//KleinerM.Proceedingsof2ndInternationalConferenceonHighSpeedForming.Dortmund:InstituteforFormingandLightweight,UniversityofDortmund,2006:129-139.[6]　VasilashGS.Forming:AMini-compendiumofDevelopments-equipment&Applications-aluminum.FormingforAutoBodyPanelsUsingElectromagnetism[EB/OL].(2003-01-01)[2006-11-10].[7]　.[D].:,2008.[8]　BelyyIV,FertikSM,KhimenkouLT.ElectromagneticMetalFormingHandbook[M].TranslatedbyAltynovaMM,GlennSDeahnn.Columbus:TheOhioStateUniversity,1996.[9]　YuriVBatygin,GlennSDeahn.ThePulseMagneticFieldsforProgressiveTechnlogies[M].Kharkov:TheOhioStateUni-versity,1999.[10]　ManishKamal.AUniformPressureElectromagneticActuatorforFormingFlatSheets[D].Ohio:TheOhioStateUniversi-ty,2005.[11]　DaehnGS,AltynovaM,BalanethiramVS,etal.High-veloeityMetalForming———AnOldTechnologyAddressesNewProb-lems[J].JOM,1995,7(7):42-45.[12]　,,　,.[J].,2003,39(3):62-65.10132　19　　　　　　　,: