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FeSO4/H2O2/UV鲁玲1 朱亦仁1 李爱梅1 于昕1 张施2 解恒参2(1. 221116; 2 221116) Fenton。,H2O2FeSO4、pH、CODCr,Fenton,。:pH=7,FeSO44g/L,H2O21.13%(V/V),15min,CODCr66.96%。 Fenton StudyonTreatmentofCottonPulpBlackLiquorbyFeSO4/H2O2/UVOxidationLULing1 ZHUYi-ren1 LIAi-mei1 YUXin1 ZHANGShi2 XIEHeng-can2(1.Dept.ofChemistry,XuzhouNormalUniversity Xuzhou,Jiangsu221116)Abstract Fentonmethodisaneffectivewaytotreatorganicpollutantsthataredifficulttodecompose.CottonpulpblackliquorisusedasthestudyobjectivetodiscusstheeffectsofsomefactorsontheremovalrateofCODCr,suchasthequantityofH2O2andFeSO4,pHvalueanddispensingtime.ItisfoundthattheintroductionofUVradiationintoFentonreagentcanincreasethedecompositionrateoftoxicorganicpol-lutantsinwastewaterandalsofacilitatetheoxidationprocess.TheremovalrateofCODCrcanreach66.96%whentheoptimumprocesscondi-tionsaredeterminedasfollows:pHvalue=7,theamountofFeSO4at4g/LandH2O2at1.13%(V/V)anddispensingtimeat45minutes.Keywords cottonpulpblackliquor Fentonreagent ultravioletlight ,,、、、,、。FeSO4/H2O2/UV,。1 FentonFe2+H2O2。Fenton,Fe2+。·OH,(E)2.80V[1],F2。,·OH,569.3kJ,,,。2 :JJ-4,80-2,PHS-3CpH。:FeSO4·7H2O、Ag2SO4、H2SO4、H2O2、NaOH、Fe(NH4)2(SO4)2·7H2O、K2Cr2O7。3 3.1 、,1。3.2 7。3 (1)-,pH6-7,1.5A,20min,,90%。(2)1.0-2.5A,;pH5-8,80%,。(3)-1、、,、、、;;,,,。[1],,..,2004(4):32-35.[2],..,2003(2):11-14.[4],,..,2004,22(4):27-29.[4]..,1987,7(5):59-60.[5]..,1997,23(5):34-38. 刘增超,1978年出生,男,陕西省西安市人,硕士,主要研究方向为污水处理及其资源化。(:2006-07-10)·10· IndustrialSafetyandEnvironmentalProtection 2007334April20071 CODCr/(mg·L-1)pH3130-299013.40 150mL1mol/LH2SO4NaOHpH,Fenton,,CODCrE:E=(COD0-CODi/COD0) 1。1 Fenton3.3 ,、23。2 AFeSO4/gBH2O2/mLC/pHD/h12340.60.70.80.91.11.21.31.454320.250.500.751.003 AFe2+/gBH2O2/mLC/pHD/hCODCr/(mg·L-1)CODCrE/%1234567891011121314151611112222333344441234123412341234123434124321214312344321214334121577.91700.21883.72373.02103.92287.41455.61761.42470.91761.42152.81431.11920.41749.22409.71932.749.6145.7039.8424.2232.8126.9553.5243.7521.0943.7531.2554.3038.6744.1423.0538.28K1K2K3K4RKA1=39.84KA2=39.26KA3=37.60KA4=36.04RA=3.8KB1=35.55KB2=37.01KB3=40.04KB4=40.14RB=4.59KC1=50.39KC2=42.97KC3=31.25KC4=23.83RC=26.56KD1=36.92KD2=39.65KD3=39.94KD4=36.23RD=3.71 :(1),pHCODCr,,Fe2+,。(2)A1B4C1D3,pH=5,FeSO40.6g,30%()1.4mL,45min,CODCr54.30%。3.4 CODCrCODCr,。3.4.1 pHCODCrFe2+pH,pH·OH,Fe2+,;pH,H+Fe3+Fe2+,Fe2+,Fenton。150mL0.6gFeSO4,1.4mL30%(),45min,pH,、pH,CODCr,42。4 FentonpHpH5678910pH3.663.643.864.014.114.26pH3.603.573.803.943.954.202 pHCODCr2,pH=7。4,FeSO4,pH。pH=7FentonpH3.86,pH3.80,,Fenton。pHFe2+、Fe3+,Fenton[2]。3.4.2 FeSO4CODCr150mL,pH=7,1.4mL30%(),FeSO4,45min,3。3FeSO4150mL0.6g。Fe2+,Fe2+Fe3+,。FeSO4·11·,。3.4.3 H2O2CODCr150mLpH7,FeSO40.6g,,45min。4,H2O2,CODCr,1.7mL。H2O2,H2O2,·OH,CODCr;H2O2,H2O2,Fe2+Fe3+,Fe3+,H2O2·OH,H2O2CODCr[3]。3 FeSO4CODCr3.4.4 CODCrFenton,·OH。pH7,0.6gFeSO41.7mLH2O2,,150mL。5CODCr,45min,。45minH2O2,·OH,[4],CODCr,45min。4 H2O2CODCr5 CODCr3.5 UV/FentonFe(OH)2+Fe2+,Fe2+/Fe3+,UV/FentonH2O2,H2O2H2O2。,·OH,。 Fe(OH)2++hνFe2++2·OH H2O2+hν2·OH Fe3++hν+H2O2Fe2++·OH+H+[6]220V、160W,20cm,pH7,0.6gFeSO4,1.7mL30%()H2O2,150mL,CODCr5。5 CODCr/min510152025E/%60.8765.2266.9666.0965.22 5,Fenton,15minCODCr66.96%,Fenton45minCODCr67.5%。15min-,6。6:15min,。6 4 (1)UVFenton:pH=7,FeSO44g/L,1.13%(),15min,CODCr66.96%。(2)Fenton,。(3)Fenton,Fe2+,。[1],..:,2003.274-284.[2],.Fenton.,2003.25(12):25-27.[3],,.Fenton.,2000,21(5):93-96.[4],..:,2001.252-255.(:200604-06)·12·