Fenton试剂深度处理印染废水的研究王利平

Fenton213164Fenton。FentonpH6．0、H2O2/Fe2+=0．8、Fe2+1．0g/L、3hCOD、TN、NH3－N、TP、84%、27%、46%、75%83%《》DB32/1072—2007。FentonX703C1000－4602201007－0090－03AdvancedTreatmentofPrintingandDyeingWastewaterbyFentonReagentWANGLi-pingCAIHuaCHENYi-zhongWANGYa-qiSchoolofEnvironmentalandSafetyEngineeringJiangsuPolytechnicUniversityChangzhou213164ChinaAbstractBasedontheexistingtechnologyinaprintinganddyeingwastewatertreatmentplantinChangzhoutheFentonmethodwasusedforadvancedtreatmentoftheeffluentfromsecondarysedimenta-tiontank．UndertheoptimalconditionsofpH6．0H2O2/Fe2+0．8Fe2+dosage1．0g/Landreactiontime3htheremovalratesofCODTNNH3－NTPandcolorare84%27%46%75%and83%respectively．TheeffluentqualitymeetstheDischargeStandardofMainWaterPollutantsforMunicipalWastewaterTreatmentPlantandKeyIndustriesofTaihuAreaDB32/1072－2007．KeywordsFentonreagentadvancedtreatmentprintinganddyeingwastewaterCS2008003、CS20090008、、、1。/COD。2、3。《》DB32/1072—2007。Fenton。11.1。、pH8．43·09·26720104CHINAWATER＆WASTEWATERVol．26No．7Apr．201048COD、TN、NH3－NTP83．2、19．06、0．351．13mg/L。1.2H2O20．98mol/LFeSO4·7H2O。H2O2/Fe2+、Fenton、、pHCOD。1.3CODTPTN—NH3－NpHpHS－25pH。22.1H2O2/Fe2+CODFe2+0．050．1mol/LH2O2H2O2/Fe2+H2O2/Fe2+COD1。1H2O2/Fe2+CODFig．1EffectofH2O2/Fe2+onremovalofCOD1Fe2+0．050．1mol/LH2O2/Fe2+=0．8COD84%63%。Fenton·OHH2O2·OHCODH2O2·OHHO2·1．7V·OH2．8VH2O2COD。H2O2/Fe2+0．8。2.2FentonCODH2O2/Fe2+0．8FeSO4·7H2OH2O2FentonCOD2。2FentonCODFig．2EffectofFentonreagentdosageonremovalofCOD2FentonCODFe2+1．0g/L、H2O2/Fe2+=0．8COD。FentonFenton·OHFenton·OHFentonFe2+·OHH2O2。2.3pHCODpH8．43H2SO4pHH2O2/Fe2+=0．8、Fe2+1．0g/LpHCOD。pHCODpH6COD57%。Fenton·OHFe2++H2O2→Fe3++OH－+·OH1Fe3++H2O2→Fe2++HO2·+H+2pH·OHpH＞7FeOH3·OHFentonpH＜22Fe3+Fe2+FentonCOD·19·．watergasheat．comFenton2674。2.4CODpH=6、H2O2/Fe2+=0．8、Fe2+1．0g/LCOD3。3CODFig．3EffectofreactiontimesonremovalofCOD33hCOD3hCOD。FentonFenton·OHCOD5。3h。2.5CODFentonCOD。COD。FentonPVC。2.6FentonpH=6、H2O2/Fe2+=0．8、Fe2+1．0g/L、3hFentonCOD、TP、TN、NH3－N1。1Fenton《》DB32/1072—2007COD、TP、TN、NH3－N84%、75%、27%、46%83%。1FentonTab．1AdvancedtreatmenteffectofprintinganddyeingwastewaterbyFentonreagentDB32/1072—2007COD/mg·L－183．213．1250TP/mg·L－11．130．280．5TN/mg·L－119．0613．9115NH3－N/mg·L－10．350．195/488403pH6、H2O2/Fe2+=0．8、Fe2+1．0g/L、3hFenton《》DB32/1072—2007。FentonFenton。1．J．200723762－65．2．//J．2008241775－78．3．//J．2008242260－62．4．Fenton/J．200824364－67．5MalikPKSahaSK．Oxidationofdirectdyeswithhydro-genperoxid[e-mail]2009－10－13·29·267．watergasheat．com