Fenton氧化法深度处理草浆造纸废水的研究杨丽云

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StudyontheadvancedtreatmentofpulpandpapermakingwastewaterbyFentonoxidationYangLiyun1,2,LiYifan2,SunJianhui2(1.CollegeofChemistryandChemicalEngineering,XinxiangUniversity,Xinxiang453003,China;2.HenanKeyLaboratoryforEnvironmentalPollutionControl,CollegeofChemistryandEnvironmentalSciences,HenanNormalUniversity,Xinxiang453007,China)Fenton1,2,2,2(1.,453003;2.,,453007)[]Fenton、,,CODCr,。:CODCr415mg/L、pH=3、H2O230mmol/L、Fe2+5mmol/L、50min,CODCr85.49%,CODCr61mg/L。[]Fenton;;[]X703.1[]B[]1005-829X(2010)11-0059-04Abstract:Fentonoxidationprocesshasbeenusedfortreatingpulpandpapermakingwastewater,whichwastreatedbyanaerobicandaerobicprocesses.Basedontheorthogonaltestandsinglefactortest,theeffectsofeverymainfactoronCODCrremovalrateareinvestigated.Thustheoptimalconditionsaredetermined.TheresultsshowthatthewastewaterCODCrreaches85.49%andtheeffluentCODCrisbelow61mg/L,whentheinfluentCODCris415mg/L,pH=3,H2O2dosageis30mmol/L,Fe2+dosageis5mmol/L,andreactiontimeis50min.Keywords:Fentonoxidation;pulpandpapermakingwastewater;advancedtreatment,、,,COD,,。,“+”,(GB3544—2001)CODCr≤450mg/L。《》(GB3544—2008),CODCr82%,80mg/L。,。FentonH2O2Fe2+·OH〔1〕,。、、、,〔2〕、〔3〕、〔4〕、〔5〕、〔6〕,〔7-8〕。Fenton、,,Fenton。11.1、,pH7.5~8.3,CODCr415mg/L,80mg/L。1.21。1.3:30%H2O2,[](102102310244);(102300410098)3011201011IndustrialWaterTreatmentVol.30No.11Nov.,201059——2010-11,30(11)(,99.9%~101.0%),(,90%)。1.4COD;pH。100mL250mL,H2SO4pH,0.2mol/LFeSO4,1mol/LH2O2,,NaOHpH11~12,。2Fenton,H2O2、Fe2+、pH、,,,,。CODCr,2。2,CODCr:H2O2pHFe2+。,。3Fenton3.1H2O21mg/LCODCr,H2O20.0625mmol/L〔9〕。CODCr400mg/LH2O225mmol/L,H2O2。3.2H2O2CODCrpH=4,FeSO44mmol/L,10℃,60min,H2O2,CODCr,1。1,H2O230mmol/L。H2O2,·OH,H2O2,·OH,CODCr,H2O230mmol/L,CODCr,,·OH,H2O2·OH,H2O2〔10〕。,H2O2K2Cr2O7,CODCr,CODCr〔11〕。,,H2O2,H2O2,。3.3n(H2O2)∶n(Fe2+)CODCrpH=4,H2O230mmol/L,10℃,60min,Fe2+,CODCr,2。2,Fe2+,1BS124SSartoriuspHS-3C85-2101-1JPJ-0.12FentonH2O2/(mmol·L-1)Fe2+/(mmol·L-1)pH/minCODCr/%115223039.30215435058.63315647055.28430237069.68530443061.19630625060.33745245062.60845427069.56945637070.34k1153.21171.58169.19170.83k2191.2189.38198.65181.56k3202.5185.95179.07194.52R49.2917.8329.4623.6960——2010-11,30(11)CODCrn(H2O2)∶n(Fe2+),Fe2+5mmol/L,n(H2O2)∶n(Fe2+)=6.0,CODCr,83.80%,CODCr67.29mg/L。Fe2+,CODCr。Fenton,Fe2+,·OH,,,;Fe2+,·OH,CODCr;Fe2+,Fe2+H2O2,·OH,,O2,·OH,H2O2。3.4pHCODCrn(H2O2)∶n(Fe2+)=6.0,H2O230mmol/L,Fe2+5mmol/L,10℃,60min,pH1、2、3、4、5、6,3。3,pHCODCr,pH3,CODCr,CODCrpH。3.5CODCrpH=3,n(H2O2)∶n(Fe2+)=6.0,H2O230mmol/L,Fe2+5mmol/L,10℃,10、20、40、60、80min,4。4,50min。3.6CODCrpH=3,H2O230mmol/L,Fe2+5mmol/L,50min,10、20、30、40℃,5。5,CODCr。,,,。4(1)Fenton、,:H2O2pHFe2+。(2)CODCr415mg/L、pH=3、H2O230mmol/L、Fe2+5mmol/L、50min、30℃,FentonCODCr85.49%,CODCr61mg/L,《》(GB3544—2008)CODCr≤80mg/L。[][1]BossmannSH,OliverosE,GobS,etal.Newevidenceagainsthydroxylradicalsasreactiveintermediatesinthethermalandphoto-chemicallyenhancedFentonreaction[J].Phys.Chem.A,1998,102(28):5542-5550.[2],,.—Fenton[J].,2007(3):30-32.[3]GulkayaI,SurucuGA,DilekFB.ImportanceofH2O2/Fe2+ratioinFenton’streatmentofacarpetdyeingwastewater[J].J.HazardousMaterials,2006,136(3):763-769.,:Fenton61——ReversedphaseemulsiondualinitiatorsgraftcopolymerizationanditsapplicationsGongGuanqun1,2,ZhangYingjie1,WangZiliang1,XieGuangyuan1,WuGuoguang1,TaoXiuxiang1(1.SchoolofChemicalEngineeringandTechnology,ChinaUniversityofMining&Technology,Xuzhou221116,China;2.SchoolofAppliedScienceandTechnology,ChinaUniversityofMining&Technology,Xuzhou221008,China)1,2,1,1,1,1,1(1.,221116;2.,221008)[],OP-10,Span-80,,,,-(AM)-(DAC),、,。。,:0.15%,35℃,5h。,、。[];;;;[]TQ314.253[]B[]1005-829X(2010)11-0062-04Abstract:Bymeansofanalyzingthetheoryofthestarchgraftcopolymerizationwithreversedphaseemulsionpoly-merization,usingOP-10asemulsifier,andSpan-80forstrengtheningemulsion,acopolymerofstarch,acrylamide(AM)andacryloyloxyethyltrimethylammoniumchloride(DAC)hasbeenprepared.Inthecourseofcopolymeriza-tion,anhydroussodiumsulfiteandammoniumpersulfateareusedasdualinitiatorsbysteppinginthecontrolofisothermalconditions.Theeffectsofthedosageofinitiators,thereactiontemperatureandthereactiontimeonthemechanismofgraftcopolymerizationreactionarediscussed.TheproductismeasuredbyIRtoidentifytheconstruc-tionofgraftcopolymer.Thecopolymerisusedinexperimentsoffinecleancoalflocculationsedimentationandfil-trationdewatering,andurbanrefractorymixedsewageistreatedbythecopolymer.Theresultsshowthattheoptimalconditionsareasfollows:thedosageofinitiator=0.15%,reactiontemperature=35℃andreactiontime=5h.ThegraftcopolymerprovedbyIRshowsexcellentpropertiesinfiltrationaiding,decolorizingandflocculatingsettling.Keywords:dualinitiators;reversedphaseemulsionpolymerization;flocculant;finecleancoal;sewage[](1966—),1989,,。E-mail:liyunyang2007@126.com。[]2010-07-05()[4]TekinH,BilkayO,AtaberkSS,etal.UseofFentonoxidationtoimprovethebiodegradabilityofapharmaceuticalwastewater[J].J.HazardousMaterials,2006,136(2):258-265.[5]KurtU,ApaydinO,ConulluMT.ReductionofCODinwastewaterfromanorganizedindustrialregionbyelectro-Fentonprocess[J].J.HazardousMaterials,2007,143(1/2):33-40.[6]KavithaV,PalaniveluK.Destruct

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