Fenton高级氧化铁碳微电解处理难降解有机废水的研究陈晓刚

201314·244·(528000)[]Fenton(CODCr)CODCr1825mg/LFentonFeSO4H2O2180mg/L4.8mL/L60minCODCr79.07%4020g/L(g)1.5160minCODCr50.50%Fenton-CODCr97.80%[]Fenton[]X5[]A[]1007-1865(2013)14-0244-02StudyofFentonAdvancedOxidationandFerric-CarbonMicroElectrolysisforRefractoryOrganicWastewaterChenXiaogang,HuangZhipei(DepartmentofChemistryandChemicalEngineering,FoshanUniversity,Foshan528000,China)Abstract:ThemethodsofFentonadvancedoxidationandferric-carbonmicroelectrolysiswerestudiedaboutsimulateddyewastewatercontainingNitrobenzene.CODCrwasdetectedbypotassiumdichromatemethod,andoptimumconditionsweredetermined.Experimentalresultsshowedthat,undercommontemperature,whentheCODCrofsimulatedwastewaterwas1825mg/L,theoptimumconditionsofFentonadvancedoxidationwerethatFeSO4=180mg/L,H2O2=4.8mL/L,thereactiontimewas60min,atthattimetheCODCrremovalratereached79.07%;theoptimumconditionsofferric-carbonmicroelectrolysiswerethatthesizeofFewas40,Fe-Cpowder=20g/L,thequalityofFe/C=1.5:1,thereactiontimewas60min,atthattimetheCODCrremovalratereached50.50%;CODCrremovalratecouldreached97.80%whenthemethodsofFentonadvancedoxidationandferric-carbonmicroelectrolysiscombined.Keywords:Fentonadvancedoxidationferric-carbonmicroelectrolysisNitrobenzenepotassiumdichromatemethodremovalrate9065%[1-2],“”FentonFenton-11.1pHSJ-3FpHHH-2ET3150BDR-4000TDL-50FA2004N1.230%ARARARARAR1.3[3-5]CODCr1825mg/L5%NaOH20min5%~7%H2SO430min1~2mm2~3mm24h1.4Fenton50mLpH=4~5H2O2FeSO430~90minpH9~10CODCr1.550mLpH=4~5pH9~10CODCr1.6[6]CODCr22.1Fenton2.1.1FeSO4CODCr50mpH4~5H2O23.6mL/LFeSO460mg/L120mg/L180mg/L240mg/L300mg/L60minpH9~10CODCr1FeSO4CODCrTab.1TheinfluenceofaddedFeSO4toCODCrremovalrateFeSO4/(mg·L-1)60120180240300COD/%52.1662.5571.2572.1372.181CODCrFeSO4FeSO4180mg/L180mg/LFeSO42.1.2H2O2CODCr50mpH4~5FeSO4180mg/LH2O22.4mL/L3.6mL/L4.8mL/L6.0mL/L7.2mL/L60minpH9~10CODCr2H2O2CODCrTab.2TheinfluenceofaddedH2O2toCODCrremovalrateH2O2/(mL·L-1)2.43.64.86.07.2COD/%68.2572.6578.8579.6380.13[]2013-06-01[](2012AA100511)[](1979-)20131440256·245·2H2O2CODCr4.8mL/LH2O21.6mL/L2.1.3CODCr50mpH4~5180mg/LFeSO43.6mL/LH2O230min45min60min75min90minpH9~10CODCr3FentonCODCrTab.3TheinfluenceofFentonadvancedoxidationreactiontimetoCODCrremovalrate/min3045607590COD/%51.2863.3477.5680.4881.23460minCODCr60min2.1.4FentonCODCr50mpH4~5FeSO4H2O2180mg/L4.8mL/L60minpH9~10CODCr4FentonCODCrTab.4CODCrremovalrateunderFentonadvancedoxidationoptimumconditions12345COD/%78.5677.2579.7580.5578.2479.074FentonCODCr79.07%2.22.2.150mpH4~520g/L60minCODCr5Tab.5TreatmentEffectofFeandFe-CCOD/%6.6337.56CODCr6.63%2.2.2CODCr50mLpH4~520g/L(g)11102040608060minCODCr6CODCrTab.6TheinfluenceofFesizetoCODCrremovalrate/1020406080COD/%14.3825.5838.2042.1843.226402.2.3(g)CODCr50mpH4~520g/L(g)0.510.71111.512160minpH9~10CODCr7CODCrTab.7TheinfluenceofdifferentFe/CtoCODCrremovalrate(g)0.510.71111.5121COD/%37.6238.8240.1848.1346.2871.51CODCr48.13%2.2.4CODCr50mpH4~5(g)1.5110g/L15g/L20g/L25g/L30g/L60minCODCr8CODCrTab.8TheinfluenceofdifferentaddedFe-CpowdertoCODCrremovalrate/(g·L-1)1015202530COD/%36.8840.3648.5650.7351.558CODCr20g/LCODCr20g/L2.2.5CODCr50mpH4~520g/L(g)1.513045607590minCODCr9CODCrTab.9Theinfluenceofferric-carbonmicroelectrolysisreactiontimetoCODCrremovalrate/min1530456075COD/%28.2335.7247.6050.7851.469CODCr45minCODCrFenton60min2.2.6CODCr50mpH4~520g/L(g)1.5160minCODCr10CODCrTab.10CODCrremovalrateunderferric-carbonmicroelectrolysisoptimumconditions12345COD/%50.7250.3250.4350.6350.4450.5010CODCr50.50%2.3Fenton-FentonpH4~5180mg/LFeSO44.8mL/LH2O24020g/L(g)1.5160min11FentonCODCrTab.11TheinfluenceofFentonadvancedoxidationandferric-carbonmicroelectrolysiscombinedprocessingtoCODCrremovalrate12345COD/%97.2898.1397.5598.3397.6997.8011Fenton-CODCr97.80%Fenton18.73%48.30%3FentonCODCr1825mg/LFentonFeSO4H2O2180mg/L4.8mL/L60minCODCr79.07%4020g/L(g)1.5160minCODCr50.50%Fenton-CODCr97.80%(241)20131440256·241·2Tab.2Comparisonexperimentcfu·g-113008606301300806050794000020000100004000045301840800170200800402815437400200012007400140506013876545077101010104ISO721820075.4[2][1][J]201239(14)20-21[2][J]201222(12)2862-2864(243)F&EI’F&EI×C=85.2461962.5RF&EIS66Tab.6Exposureradiusandexposureareascomparisonbeforeandaftertakingcompensatorymeasures/F&EI112.1685.24R28.7221.82RF&EI×0.84×0.3048S1547.95946.96SπR2π3.14()4m10m8m5m[2]3DOW()“”“”“”[1]()[M]2005[2]GB50156—2002[S](245)[1][J]200724(4)1-4[2][J]200935(5)5-8[3]2B[D]2011[4][J]200111(5)6-10[5][J]201133(2)165-167[6]GB11914-89-[G]1994