采用强酸型阳离子交换树脂分离铝离子和磷酸盐贺子良

115Vol．11No．520175ChineseJournalofEnvironmentalEngineeringMay201751422813ZDＲW-ZS-2015-5-42016－08－042016－09－191989—。[e-mail]*[e-mail]12122*1．3004002．100085Al3+Al3+。001×7Al3+。Al3+Al3+“S”ThomasAl3+。Al3+Al3+01000mg·L－14、610BV·h－1Al3+10mg·L－114.08、12.1611.09mg·g－1Al3+4300mg·L－116.50%、9.61%6.37%。4%HCl98.3%。Al3+。001×7X786A1673-9108201705-2640-06DOI10.12030/j．cjee．201608041SeparationofaluminumionsandphosphatebycationexchangeresinHEZiliang12WANGLijuan1ZHULijun2LIUＲuiping2*1．CollegeofCivilandTransportationEngineeringHebeiUniversityofTechnologyTianjin300400China2．KeyLaboratoryofDrinkingWaterScienceandTechnologyＲesearchCenterforEco-EnvironmentalSciencesChineseAcademyofSciencesBeijing100085ChinaAbstractTheproductiveprocessofthiophosphorylchloridewhichwasanimportantpesticideintermediatemayproducestrongacidwastewaterwithhighconcentrationofAl3+andphosphate．It’sofgreatsignificancetoa-chieveeffectiveseparationofAl3+andphosphateforrecoveryandutilization．Thisstudyfocusedontheaboveproblems．ThedynamicadsorptionexchangebehaviorofAl3+andphosphateinsingleandcoexistencesystemonthe001×7strongacidicstyrenecationexchangeresinwasresearched．Itwasfoundthattheresinhadgoodad-sorptionperformanceforAl3+．TheAl3+breakthroughcurveshowedatypical“S”typeandtheThomasmodelcouldbeusedtosimulatetheadsorptionprocessofAl3+effectively．WiththeinitialconcentrationofAl3+1000mg·L－1andtheflowratesof46and10BV·h－1thebreakthroughexchangecapacitywas14.0812.16and11.09mg·g－1respectively．ThepresenceofphosphatepromotedtheexchangeofAl3+．ThebreakthroughexchangecapacityofAl3+wasincreasedby16.50%9.61%and6.37%attheconcentrationofphosphate4300mg·L－1．The4%HClsolutioncouldbeusedasregeneratorachievinga98.3%ofregenerationrate．ItwasfeasibletoseparateandrecoverofAl3+andphosphatefromstrongacidwastewaterbyusingcationexchangeresinasscavenger．Keywordsstrongacidwastewaterphosphateradicalaluminumion001×7cationexchangeresinadsorption2014374.40t180%、。5。、2。Al3+、PO3－4。、10004300mg·L－1。。3Al3+Al3+27mg·L－1。4Al3+。5-6。。。、。、、7-9。、。、。001×7Al3+PO3－4PO3－4Al3+Al3+PO3－4。11.1。AlCl3·6H2OAl3+1000mg·L－1NaH2PO4·2H2OPO3－44300mg·L－1pH=2.385mol·L－1pH2.3。1001×7Fig．1Chemicalformulaofstronglyacidicstyrenetypecationexchangeresin001×711。1001×7Table1Mainparametersof001×7cationexchangeresinpH/mm/%/g·mL－11～140.3～1.245～550.75～0.8550%～100%、101mol·L－18h1mol·L－1NaOH8h48%。1.21.2.125.00g32.00mL20mm×H100mm、4、6、10BV·h－1Al3+PO3－4。q=C0－Ce·Vm1146211C0、Cemg·L－1VLmg。1.2.211ThomasAl3+2。。lnC0－C()C=lnexpk1QeM()F－[]1－k1C0t2C0mg·L－1Ctmg·L－1Qemg·g－1k1L·mg·h－1MgFL·h－1th。expk1QeM/F123lnCC0()－C=k1C0t－k1QeMF=k1C0t－QeMC0()F3lnC/C0－Ct4lnCC0()－C=kt－τ4τ=QeM/C0Fk=k1C0τC=C0/2h。1.2.32%、3%、4%、5%6BV·h－1。3BV1BV·h－15BVAl3+。1.3BT100-2JYZ1515X-AQUINTIX124-1CNpHOrionStarA211S-3000N。PO3－4/U3010Al3+ICP-OESAgilent710。22.12Al3+001×7Fig．2DynamicbreakthroughcurvesofAl3+onto001×7strongacidtypecationexchangeresinbedatdifferentflowrates24、610BV·h－1。pH=2.3Al3+0=1000mg·L－10=0mg·L－1。Al3+“S”。4BV·h－10～165minAl3+Al3+212minAl3+181.02mg·L－1285minAl3+。Al3+610BV·h－19552min4BV·h－116.71%35.02%。、Al3+。24625Al3+10mg·L－11。4BV·h－110BV·h－114.08mg·g－111.09mg·g－1。Al3+12Al3+13。Al3+。2ThomasAl3+4、610BV·h－1Ｒ20.994、0.9880.991。2ττThomasAl3+。2Al3+Table2DominantparametersinvolvedinremovalofAl3+bycationexchangebed/BV·h－1τ/minτ/min/min/min/mg·L－1/mg·L－1425325016528514.0819.2561591639519512.1619.2110102995213011.0919.182.23PO3－4001×7Fig．3DynamicbreakthroughcurvesofPO3－4onto001×7strongacidtypecationexchangeresinbedatdifferentflowrates3。pH=2.3Al3+0=0mg·L－10=4300mg·L－1。。4、610BV·h－11min3083.70、3612.79、3809.37mg·L－13min3973.67、4073.604203.75mg·L－1。4BV·h－150～110min4200.00mg·L－1300min100.00mg·L－1pH=2.3H3PO4142～4nmH3PO4-15。610BV·h－1。2.3Al3+Al3+4、610BV·h－14。Al3+10004300mg·L－1。Al3+Al3+“S”。。4、610BV·h－1Al3+5、32min42、3112min。Al3+16.50%、9.61%6.37%。3462114Al3+PO3－4001×7Fig．4DynamicbreakthroughcurvesofAl3+andPO3－4onto001×7strongacidtypecationexchangeresinbedatdifferentflowrates。1min1594.59、1771.472047.15mg·L－11489.11、1841.321762.22mg·L－1。Al3+15.92%、12.17%、5.81%。5001×7SEMFig．5SEMimagesfor001×7resin2.4Al3+pH=2.3H+H+13Al3+Al3+4。2pH2.3H3PO4—SO3H16。5a001×71。5b6bC、O、SAl31%5c6cC、O、SPP9%5d6dC、O、S、AlPAlP35%12%。2.572%、3%、4%5%。2%3%4%63.01%84.68%98.30%5%99.10%。4%Al3+2330.85mg·L－1Al3+2.3。17。446256001×7EDSFig．6EDSanalysisfor001×7resin7Fig．7SorptionefficiencyofsolutionofHCl3Al3+Al3+。Al3+Al3+。、Al3+、4%。Al3+Al3+。1．2014M．201514-222．J．198928483．J．201036638-414．J．2007294244-2465．J．201482735-7396CABIＲOLNBAＲＲAGANEJDUＲANAetal．EffectofaluminiumandsulphateonanaerobicdigestionofsludgefromwastewaterenhancedprimarytreatmentJ．WaterScienceandTechnology2003486235-2407DABＲOWSKIAHUBICKIZPODKOSCIELNYPetal．Selectiveremovaloftheheavymetalionsfromwatersandindustrialwastewatersbyion-exchangemethodJ．Chemosphere200456291-1068PEHLIVANEALTUNT．ThestudyofvariousparametersaffectingtheionexchangeofCu2+Zn2+Ni2+Cd2+andPb2+fromaqueoussolutiononDowex50WsyntheticresinJ．JournalofHazardousMaterials20061341/2/3149-1569STEFANDSMEGHEAI．MechanismofsimultaneousremovalofCa2+Ni2+Pb2+andAl3+ionsfromaqueoussolutionsu-singPuroliteＲS930