磁纳米类芬顿法与芬顿法处理焦化废水的对比研究杨乐

121231211．1500902．2142053．056038Fe3O4、Fe3O4－H2O2。Fe3O4COD67．9%97．8%COD68．04%98．48%。。[e-mail]neticNanoparticlesFenton-likeMethodandFentonMethodforCokingWastewaterTreatmentYANGLe12YANGJi-xian1GUOHai-juan23MAFang12QIUShan11．StateKeyLaboratoryofUrbanWaterResourceandEnvironmentHarbinInstituteofTechnologyHarbin150090China2．YixingEnvironmentalProtectionResearchInstituteHarbinInstituteofTechnologyYixing214205China3．CollegeofEnergyandEnvironmentalEngineeringHebeiUniversityofEngineeringHandan056038ChinaAbstractTosolvetheproblemsthatthebiochemicaleffluentfromtraditionalprocessesinthetreatmentofcokingwastewatercouldnotmeetthestandardanditwashardforadvancedtreatmentthebiochemicaleffluentofcokingwastewaterwasdegradedusingFe3O4magneticnanoparticlesFenton-likemethodandFentonmethodrespectivelyandFe3O4-H2O2wasreusedbecauseitcouldberecycledbymagneticseparation．Theoptimumreactionconditionswereobtainedthroughsinglefactoranalysismeth-od．UnderthisconditionFe3O4wasreusedandthesystemwasoperatedstably．TheremovalratesofCODandvolatilephenolwereabove67．9%and97．8%respectively．AftertheparameteroptimizationthetraditionalFentonmethodcouldremoveCODandvolatilephenolby68．04%and98．48%respec-tively．Bothofthemethodscouldtreatcokingwastewaterstablyandeffectively．Aftertheeconomicanal-ysistheFenton-likemethodhasgreatpotentialincost-savingbecauseofitsspecialrepeatabilityandwi-derapplicationprospectsthanthetraditionalFentonmethod．·48·33120171CHINAWATER＆WASTEWATERVol．33No．1Jan．2017KeywordsFe3O4Fentoncokingwastewaterrepeatability、12。34。Fe3O4－H2O2pHFe3O4Fe2+H2O2·OH5～7Fe3O4Fe3O4。。11.1Fe3O4Fe3O4Fe3O4MNPsFeCl3·6H2OFeCl2·4H2O2．0mol/LHClFe3+∶Fe2+=2∶150mL1．0mol/LNH3·H2O10min40mm×40mm×20mmFe3O4MNPs5min。。X1。1Fe3O4MNPsXRDFig．1XRDparternsofFe3O4MNPs12θ=30．4°、35．7°、43．4°、53．8°、57．5°、62．8°Fe3O4Fe3O4。1.2FeCl3·6H2O、FeCl2·4H2O、FeSO4·7H2O、、、。pH9．3、COD157．7mg/L、28．3mg/L。1.3Fe3O4MNPs－H2O2pHFe3O4MNPsH2O2。。pHFeSO4·7H2OH2O2。NaOHpH。COD4－。COD60℃60minH2O2。22.10．5g/L、H2O230%1．0mL/L、120minpHCOD2。2pHFig．2EffectofpHonpollutantsremovalbyFenton-likemethod2pH2．5CODCOD·58·．watergasheat．com33175%98%。pH·OHpHH+·OH·OHH2O2H2OO289。pH=2．5、0．5g/L、120minH2O230%0．1、0．2、0．5、1．0、1．5、2．0mL/LCOD3。H2O2≥1．0mL/LCODH2O2COD。H2O2·OH·OHH2O2COD。3H2O2Fig．3EffectofH2O2dosagesonpollutantsremovalbyFenton-likemethodpH=2．5、H2O230%1．0mL/L、120min0．1、0．2、0．5、1．0、1．5、2．0g/LCOD4。4Fe3O4MNPsFig．4EffectofFe3O4MNPsdosagesonpollutantsremovalbyFenton-likemethod4≥1．0g/LCOD。·OH10Fe3O4。pH=2．5、Fe3O4MNPs1．0g/L、H2O230%1．0mL/LCOD73．11%、99．84%。2.2FeSO4·7H2O2．0g/L、H2O230%1．0mL/L、30minpHCOD5。5pHFig．5EffectofpHonpollutantsremovalbyFentonmethod5pH2～4COD。pHpH。pH=3、H2O230%1．0mL/L、30minFeSO4·7H2O0．5、1．0、1．5、2．0、2．5、3．0g/LCOD。FeSO4·7H2OCODFeSO4·7H2O1．0g/LCOD68．04%、98．48%。pH=3、FeSO4·7H2O1．0g/L、30minH2O230%0．1、0．2、0．5、1．0、1．5、2．0mL/LCOD。H2O21．0mL/LCOD51．7、0．43mg/L。pH=3、FeSO4·7H2O1．0g/L、H2O230%1．0mL/L·68·331．watergasheat．comCODCOD68．04%、98．48%。2.3Fe3O4MNPs－H2O2pH=2．5、Fe3O4MNPs1．0g/L、H2O230%1．0mL/L120min。COD4COD46．11、0．41mg/L。。2.4pH=2．5、Fe3O4MNPs1．0g/L、H2O230%1．0mL/L10%Fe3O4MNPs6。6Fig．6RemovalefficiencyofpollutantsbyFenton-likemethodwithcontinuousandstableoperationCOD67．9%97．8%COD40～50mg/L0．24～0．62mg/L。2.5。FeSO4·7H2OH2O21．5/m3Fe3O4H2O2H2O21/m3Fe3O4FeCl3·6H2O、FeCl2·4H2O、HCl、NH3·H2O5000/t90%1．5/m3。pH。。、。3①pH=2．5、Fe3O4MNPs1．0g/L、H2O230%1．0mL/LCODFe3O4MNPs4COD67．9%97．8%。②pH=3、FeSO4·7H2O1．0g/L、H2O230%1．0mL/LCOD。③。1ZhaoWTHuangXLeeDJ．Enhancedtreatmentofcokeplantwastewaterusingananaerobic－anoxic－oxicmembranebioreactorsystemJ．SepPurifTechnol2009662279－286．2WeiXXZhangZYFanQLetal．Theeffectoftreat-mentstagesonthecokingwastewaterhazardouscom-poundsandtheirtoxicityJ．JHazardMater2012239/2404135－141．3．FentonJ．201026·78·．watergasheat．com331393－95．4．Fenton—D．2014．5．Fe3O4－FentonD．2014．6XuLJWangJL．Fenton-likedegradationof24-di-chlorophenolusingFe3O4magneticnanoparticlesJ．ApplCatalBEnviron2012123/12430117－126．7HuangRXFangZQYanXMetal．Heterogeneoussono-FentoncatalyticdegradationofbisphenolAbyFe3O4magneticnanoparticlesunderneutralconditionJ．ChemEngJ201219714242－249．8．FentonJ．200629628－33．9ZhangJBZhuangJGaoLZetal．Decomposingphe-nolbythehiddentalentofferromagneticnanoparticlesJ．Chemosphere20087391524－1528．10XueXFHannaKAbdelmoulaMetal．AdsorptionandoxidationofPCPonthesurfaceofmagnetiteKineticex-perimentsandspectroscopicinvestigationsJ．ApplCatalBEnviron2009893/4432－440．1992－Fe3O4。[e-mail]櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆2016－04－1883tion201228778－81．2ZhaoSZouLTangCYetal．RecentdevelopmentsinforwardosmosisOpportunitiesandchallengesJ．JMembrSci201239641－21．3．J．2010261438－41．4．CTAJ．201433217－24．5．D．2011．6．D．2013．7SuJCChungTSHelmerBJetal．Enhanceddouble-skinnedFOmembraneswithinnerdenselayerforwastewatertreatmentandmacromoleculerecycleusingsucroseasdrawsoluteJ．JMembrSci2012396492－100．8GaoYBWangYNLiWYetal．CharacterizationofinternalandexternalconcentrationpolarizationsduringforwardosmosisprocessesJ．Desalination2014338165－73．9ParidaVNgHY．ForwardosmosisorganicfoulingEffectsoforg