Fenton混凝催化氧化法处理焦化废水的影响因素许海燕

　　:0427-7104(2003)03-0440-05Fenton-许海燕,李义久,刘亚菲(,200092)　:Fenton-,,.,Fenton.,pH,ρ(Fe2+)=140mg·L-1,ρ(H2O2)=200mg·L-1,ρ(FeCl3)=26mg·L-1,ρ(PAM)=5.2mg·L-1,CODCr87.30%,99.45%,CODCr.:Fenton;;:O661.1　　　　:A,.,,,,,[1].,,Fenton.Fenton、.·OH,,COD[2].Fenton,,Fenton-,,.1　1　Tab.1　Maincontaminationindexofwastewaterρ/(mg·L-1)F-CN-1CODCrNH3-N101223.93.7223.99.661.1　,1.1.2　,H2O2(30%)(),FeSO4·7H2O(),FeCl3(),PAM()(),(),().:2003-03-05:(20010247004):(1978—),,.42　320036　　　　　　()JournalofFudanUniversity(NaturalScience)　　　　　Vol.42No.3Jun.2003DOI:10.15943/j.cnki.fdxb-jns.2003.03.0461.3　500mL,pH,Fe2+H2O2(Fenton),30℃,pH,FeCl3PAM,,,CODCr、、、CN-、F-.H2O2、Fe2+、FeCl3PAM.CODCr,.2　2.1　2　Tab.2　Leveloftheexperimentfactors(500mL)ρ/(mg·L-1)H2O2Fe2+FeCl3PAM1200802042250160244.83280200306Fenton:pH、H2O2、Fe2+、、FeCl3PAM,,:(1),H2O2;(2)pH3[3];(3)30℃,30℃;(4)150min.,H2O2、Fe2+、FeCl3PAM43L9(34),2,3.3　(1)Tab.3　Resultoftheexperiment(1)(500mL)ρ/(mg·L-1)H2O2Fe2+FeCl3PAMCODη＊/%120080204168.524.432200160244.843.2580.68320020030690.0159.64425080246159.928.29525016030470.1368.556250200204.894.6757.54728080304.8127.342.91828016020630.6486.26928020024457.8274.07　　　　:ηCOD(%).3　(2)Tab.3　Resultoftheexperiment(2)K1j/%K2j/%K3j/%Rj/%H2O254.8951.4667.7516.29Fe2+31.8878.4763.7531.75FeCl356.0860.9857.034.90PAM55.6860.3558.064.673,Fe2+CODCr,H2O2,FeCl3PAM.:ρ(Fe2+)=160mg·L-1,ρ(H2O2)=280mg·L-1,ρ(FeCl3)=24mg·L-1,ρ(PAM)=4.8mg·L-1.,.4413　　　　　　　　　　　　:Fenton-2.2　1　Fe2+、H2O2CODCrFig.1　InfluenceofFe2+andH2O2concentrationtoCODCrρ/mg·L-1—◇—;—△—(1)Fe2+　:ρ(H2O2)=280mg·L-1,ρ(FeCl3)=24mg·L-1,ρ(PAM)=4.8mg·L-1,Fe2+CODCr1.1Fe2+140mg·L-1,η(CODCr)88.10%,Fe2+,CODCr.Fe2+Fenton·OH,Fe2+,·OH,·OH,,[4].Fe2+140mg·L-1,CODCr,Fe2+140mg·L-1.(2)H2O2　:ρ(Fe2+)=140mg·L-1,ρ(FeCl3)=24mg·L-1,ρ(PAM)=4.8mg·L-1,H2O2CODCr1.1,H2O2200mg·L-1,CODCrH2O2,H2O2200mg·L-1,CODCr80.68%,H2O2,CODCr.H2O2,·OH,H2O2,H2O2·OH,H2O2[5]:2·OH+H2O2※2H2O+O22　FeCl3CODCrFig.2　InfluenceofFeCl3concentrationtoCODCrH2O2Fe2+Fe3+,·OH[6].H2O2200mg·L-1.(3)FeCl3　:ρ(Fe2+)=140mg·L-1,ρ(H2O2)=200mg·L-1,ρ(PAM)=4.8mg·L-1,FeCl3CODCr2.2,FeCl326mg·L-1,CODCr.,FeCl3,Fe3+Fe(OH)3,,,.FeCl3,,FeCl3,CODCr.FeCl326mg·L-1.3　PAMCODCrFig.3　InfluenceofPAMconcentrationtoCODCr(4)PAM:ρ(Fe2+)=140mg·L-1,ρ(H2O2)=200mg·L-1,ρ(FeCl3)=26mg·L-1,PAMCODCr3.3PAM5.2mg·L-1,CODCr.PAM,FeCl3,,,,,[7].PAM,,PAM,,PAM,,CODCr.PAM5.2mg·L-1.442()　　　　　　　　　　　　　　　　422.3　:ρ(Fe2+)=140mg·L-1,ρ(H2O2)=200mg·L-1,ρ(FeCl3)=26mg·L-1,ρ(PAM)=5.2mg·L-1.,4.4　Fenton-Tab.4　ResultofthetreatmentofcokingplantwastewaterbyFenton-coagulationprocess/ρ/(mg·L-1)CODCrNH3-NF-CN-45(94.55)43.2(87.30)2.46(73.43)20.2(16.12)1.02(71.86)　　　　:(%).4　、Fig.4　Ultrasonicabsorptionofthreekindsofwastewater1.;2.;3.494.55%,CODCr87.30%,NH3-N,CN-70%,,Fenton-.、,4,305nm,,Fenton,FeCl3PAM,CODCr.3　Fenton-,,:ρ(Fe2+)=140mg·L-1,ρ(H2O2)=200mg·L-1,ρ(FeCl3)=26mg·L-1,ρ(PAM)=5.2mg·L-1,pH=3,30℃,150min;Fenton-,,CODCr,;Fenton-,,.:[1]　,,.Fenton[J].环境导报,1997,6:23-24.[2]　,.[J].环境工程,1999,17(1):16-19.[3]　,,　,.Fenton-[J].上海化工,2000,25(1):26-28.[4]　DelaatJ,GallardH,AncelinS,etal.ComparativestudyofoxidationofatrazineandacetonebyH2O2/UV,Fe(Ⅲ)/UV,Fe(Ⅲ)/H2O2/UVandFe(Ⅱ)orFe(Ⅲ)/H2O2[J].Chemopere,1999,39(15):2693-2706.[5]　SanY,PignatelloJ.Photochemicalreactionsinvolvedinthetotalmineralizationof2,4-DbyFe3+/H2O2/UV[J].EnvironSciTechnol,1993.27(2):304-310.[6]　,　,　,.Fenton[J].环境科学,2000,21(3):93-96.[7]　.[M].:,1983,52.4433　　　　　　　　　　　　:Fenton-ResearchontheTreatmentofCokingPlantWastewaterbyFenton-coagulationProcessXUHai-yan,LIYi-jiu,LIUYa-fei(DepartmentofChemistry,TongjiUniversity,Shanghai200092,China)Abstract:ThecokingplantwastewaterthathadbeentreatedbybiochemicaltechniquewastreatedbyFentonreagentandthecoagulationtechnique.Theresearchhasbeendoneontheinfluencefactorsoftheaction.TheexperimentresultsuggeststhatmostoftheCODCrcanberemovedandthewatercanbediscoloredintheoptimumcondition:ρ(Fe2+)=140mg·L-1,ρ(H2O2)=200mg·L-1,ρ(FeCl3)=26mg·L-1,ρ(PAM)=5.2mg·L-1.Theprocessiseffectiveandhasanpotentionalapplication.Keywords:Fenton;coagulation;cokingplantwastewater～～～～～～～～～～～～～～～～～～～～～～～～～～～～～～～～～～～～～～～～～～～～～～～(上接第439页)StudiesonthePerformanceofPenicillinAcylaseImmobilizedtoGMA-NVP-MBAACopolymerSupportXUEPing1,2,LUGuan-zhong1,GUOYang-long1,WANGYun-song1,GUOYun1(1.ResearchInstituteofIndustrialCatalysis,EastChinaUniversityofScienceandTechnology,Shanghai200237,China;2.ChemistryandChemicalEngineeringSchool,NingxiaUniversity,Yinchuan750021,China)Abstract:Thebeadedglycidylmethacrylate(GMA)-N-vinyl-2-pyrrolidone(NVP)-N,N′-methylene-bis-(acry-lamide)(MBAA)copolymers(GNM)weresynthesizedbyinversesuspensionpolymerizationandusedassupportfortheimmobilizationofpenicillinGacylase.TheactivityofenzymeimmobilizedonGNMwasabout491U/g,whenthepolymerwassynthesizedatw(NVP)/w(GMA)=1/10with50%crosslinkingagent.Afteritwasusedtohy-drolyzepenicillinGfor4times,theactivityoftheimmobilizedenzymereachedrelativelysteadyvalue(444U/g)from491U/g,andwashardlychangedinthefollowingrepeatedlyusefor14times.Keywords:copolymersupport;inversesuspensionpolymerization;immobilizedenzyme;penicillinacylase444()　　　　　　　　　　　　　　　　42