Fenton氧化深度处理石化废水的试验研究

132201311671—1815201302-0542-03ScienceTechnologyandEngineeringVol.13No.2Jan．20132013Sci.Tech.Engrg.Fenton225127Fenton。FentonCODCrCODCr40～60mg/LpH3—4H2O2/Fe2+5∶1H2O230%0.6mL/L30minCODCr20mg/L。FentonX703.5A2012931980—。。[e-mail]。。、、。。、、、1—3。FentonFe2+H2O2Fe2+H2O2HO·CO2H2O。、、4—6。FentonFenton。11.1CODCr40～60mg/L。PHS—3CpH5B—1BCOD。1∶1HCl30%H2O2Ag2SO4FeSO4·7H2ONaOHK2Cr2O7。1.2500mL1∶1HClpHFeSO4·7H2O30%H2O2pH1020minCODCr。22.12.1.1pHFenton500mL1∶1HClpH23456H2O21mL/LFeSO4·7H2O2g/L40minpHCODCr1。1pHFenton1pH=4CODCrpHCODCr。pHH2O2·OHFe3+Fe2+pHFe2+Fe3+pHH2O2pHH2O2O2H2O·OHFe3+Fe2+。pH3—5H2O2pH4。2.1.2H2O2Fenton40minpH4FeSO4·7H2O2g/LH2O2Fenton2。2H2O2Fenton2H2O20.6mL/LCODCr47.5%。H2O20.6mL/LH2O2·OHCODcrH2O20.6mL/LFe2+Fe3+·OHH2O2·OHH2O2CODCrK2Cr2O7K2Cr2O7CODCrCODCrH2O20.6mL/L。2.1.3H2O2/Fe2+FentonH2O2/Fe2+H2O2/Fe2+1Fe2+H2O2/Fe2+1Fe2+H2O2·OH。H2O2H2O2/Fe2+CODCr1。H2O2/Fe2+51CODCr53.7%nH2O2/nFe2+5∶1。1H2O2/Fe2+CODCrnH2O2/nFe2+CODCr/mg·L－1/%122∶15∶110∶120∶1262219253536.646.353.739.014.62.1.4FentonpH4H2O20.6mL/L510203040minCODCr3。330minCODCr30min54.5%。Fen-ton30min。2.23452Fenton3FentonCODCrpH4H2O20.6mL/LnH2O2/nFe2+5∶130min。4Fenton4CODCr15～20mg/LCOD。3FentonpH4H2O20.6mL/LnH2O2/nFe2+5∶130minCODCr65%CODCr15—20mg/LCODCr。Fenton。1.———.200625Z12.Fenton．2010296122—1263..201137460—634.Fenton.201241111—145.Fenton.20113411104—1076.Fenton.201030648—51StudyonAdvancedTreatmentofPetrochemicalWastewaterbyFentonOxidationProcessYANGRui-hongResearchCenterofEcologicalenvironmentmanagementandapplicationofbiotechnologyofJiangsuProvinceDepartmentofChemicalEngineeringYangzhouPolytechnicInstituteYangzhou225127P．R．ChinaAbstractAdvancedtreatmentofpetrochemicalwastewaterbyFentonoxidationprocesswasstudied.There-sultsshowthattheCODcanberemovedquicklybyFentonoxidation.TheCODCrofsecondarytreatmenteffluentis40～60mg/LwhenthevalueofpH3—4H2O2/Fe2+=5∶1H2O2massfraction30%dosageis0.6mL/Lreactiontime30mineffluentCODCrcanbereducedto20mg/Lcanachievetheindustrialwaterreusestandardrequirements.KeywordsFentonoxidationadvancedtreatmentpetrochemicalwastewater44513