高碳海绵铁电化学絮凝处理铅锌冶炼厂制酸废水徐晓军

2012343333～338CN53－1045/NISSN0258－7971JournalofYunnanUniversityhttp//．yndxxb．ynu．edu．cn*65009313．00%C55．40%Fe－pH、．pH=3．030g/L＜0．301mm40min98．87%77．89%、93．50%、91．50%47．26%－99．90%99．67%、97．77%、99．56%97．77%《》GB8978—1996．X703．1A0258－7971201203－0333－06．“”．、、、、pH、、、、、．、、、、1－7．17、、、．．－．、、、、、、、、、8－10－11－14．－．－、、、*2011－09－21091067424、2009－079、2012BA108．1960－、[e-mail]．《》GB8978—1996．11．11．NaOHHNO33#PAM．1Tab．1ThecharacteristicsofthePd－ZnsmeltingwastewaterinYunanProinChinaρ/mg·L－1H2SO45%Pb94．61Zn147．00Fe400As39．59Cu3．86Cd0．46、LHT04/17、、110．22kN/cm21．82g/cm3SEM1EDS92．35%60%13．10%、．11000Fig．1Thescanningpictureofthehigh－carbonspongei-ronbyelectronmicroscope1000times1．2100mL500mLpH、1h．2．1．3JJ4－ApHpHS－3C、、、AA－240FSVarian8TU－1901－SEMEDSXL30ESEM－TMPPhilips．22．160r/min3g＜0．301mmpH3．030min．2Fig．2Processingchartofcombiningelectrochemistrywithflocculationforsmeltingwastewater433342．1．1pHpH3．3pHpH=3．097．76%pHpH=3．0～4．060%pH．pH3．0～4．0．2．1．24．40．11～0．995mm0．894mm96．58%．＜0．301mm0．301mm59．86%．、0．301mm．2．1．35．51．5gΔE．Zn2+0．03g/mL97．76%59．86%．2．1．46．620min15min95．91%25min96．81%40min40min40min77．89%．．40min98．17%、77．89%．60r/minpH3．03g0．301mm40min．2．2Cu2+0．25mg/L3pHFig．3TheeffectofinitialreactionpHonPd－Znremovalrateinwastewater4Fig．4Theeffectofparticlesizeofhigh－carbonspongei-rononPd－Znremovalrateinwastewater53335Fig．5Theeffectofamountofhigh－carbonspongeirononPd－Znremovalrateinwastewater6Fig．6TheeffectofreactiontimeonPd－Znremovalrateforwastewater2Tab．2Theresultsaftterelectrochemistry－flocculationtreatmentwithhigh－carbonspongeironmg/L/%/%/%《》pH3．05．2—8．6——6～9Pb2+94．611．7398．170．09594．5199．901．0Zn2+146．0032．2877．890．48298．5199．671．0Cu2+3．860．2593．500．08665．6097．770．5Cd2+0．460．0491．500．00295．5099．560．0139．5920．8847．260．45097．8498．740．5400．00939．20—13．5098．5698．56—93．50%Cd2+0．04mg/L91．50%47．26%．2《》GB8978—1996．Fe3+400mg/L939mg/LpH．2．22pH．100mLNaOHpHPAM5mg/m310min60min、7．7pH=6．099．58%pHpH=9．0pHpH=9．0．pH=9．0、+99．90%99．67%．pH9．013pH8～912－13．9．0pH263334．《》GB8978—1996．7pH+Fig．7TheeffectofflocculationpHonthetotalPd－Znremovalrateoftheelectrochemistry－flocculationinwastewater2．3SEM、EDSSEMEDS8．8Fig．8Thesurfaceofhighcarbonspongeironafterreac-tionbyelectronmicroscopescanEDS81Pb48．92%O29．62%PbOPbPbPbPbO2PbCuCu3AsSPbpHPbSO443．31pH3．00．301mm30g/L40min98．17%、77．89%、93．50%、91．50%47．26%、《》GB8978—1996．2、pH9．099．90%99．67%、97．77%、99．56%97．77%《》GB8978—1996．3EDS、XRD．4、、．1．M．73332008．2DABROWSKIAHUBICKIZPODKOSEIELNYP．Se-lectiveremovaloftheheavymetalionsfromwatersandindustrialwastewatersbyionsexchangemethodJ．Chmisphere20045691-106．3．M．2010．4．D．2002．5DABROWSKIAHUBICKIZPODKOS'CIELNYPetal．Selectiveremovaloftheheavymetalionsfromwa-tersandindustrialwastewatersbyionsexchangemethodJ．Chemosphere200456291-106．6JOHNSONPDGIRINATHANNAIRPOHLINGERKNetal．EnhancedremovalofheavymetalsinprimarytreatmentusingcoagulationandflocculationJ．WaterEnvironRes2008805472-479．7．J．200829130-32．8．J．2004308-10．9．J．2009351127-32．10LITian-chengJIANGBinFENGXiaetal．Purifica-tionoforganicwastewatercontainingCu2+andCr3+byacombinedprocessofmicroelectrolysisandbiofilmJ．ChineseJournalofChemicalEngineering2003116146-150．11．P．200910218398．5CN101723488A．12．J．2011373100-104．13．－J．201131531-34．14．P．200910218398．5．2010－12－29．TreatmentofwastewaterfromPd－Znsmeltingplantbythemicro－electrolysisandflocculationprocesswithhighcarbonspongeironXUXiao-junNIERuiLIXin-zhengZHULi-yunLIXinCHENGXiao-hongZHUCheng-binWANGPanFacultyofEnvironmentalScienceandEngineeringKunmingUniversityofScienceandTechnologyKunming650093ChinaAbstractInodertosuportanewwayforthemetal－containedwastewaterfrommetallurgicalplantsinthispaperthenewcombinedflocculationprocessofthemicro－electrolysiswithhighcarbonspongeironincluding13．00%C55．40%Fewasusedtotreatthemetal－containedwastewaterfromlead－zincmetallurgicalplantandtheinfluenceofpHreactiontimeandconsumptionaswellasparticlesizeofspongeironontheremovaleffectofleadandzincionsinacidwastewaterfromPd－Znsmeltingplantwerealsoresearchedsystematicallyanddeeply．Theresultsshowedthattheremovaleffectofleadionsandzincionsinwastewaterwasoptimumandtheelectrochemicalremovalratesofthemwere98．87%and77．89%respectivelytheionremovalratesofcop-pertotalcadmiumandarsenicinwastewaterwere93．50%91．50%and47．26%respectivelywhentheinitialpHofwastewaterwas3．0theconsumptionandparticlesizeofspongeironwere30g/L0．301mmrespectivelyandthereactiontimewas40min．Underoptimalconditionsbyusingmicro－electrolysisandflocculationprocesstheremovalratesofleadandzincreached99．90%and99．67%respectivelyatthesametimethetotalarsenicionscadmiumionsandcopperionswerefurtherremovedthetotalremovalratesofthemwere97．77%99．56%and97．77%respectively．Thewastewaterafterthetreatmentscouldreach“IntegratedWastewaterDischargeStandard”GB8978—1996inrequirementsofprimarystandardinChina．Keywordshighcarbonspongeironmicro－electrolysisflocculationPd－Znsmeltingwastewater83334