Fenton氧化强化处理经内电解预处理的络合铜废水的研究

185201110JOURNALOFDONGGUANUNIVERSITYOFTECHNOLOGYVol．18No．5Oct．20112011－07－101989—。Fenton523808FentonCOD。FentonH2O2/COD、Fe2+/H2O2、pH。Fenton。H2O2/COD2.0Fe2+/H2O20.2～0.3pH2.0～4.060min。COD87.04%99.86%。FentonTQ09A1009－0312201105－0060－06。。COD1－4。5FentonCOD。Fenton。Fenton。FentonFentonFentonCOD。11.150%30%3∶1。AA6000721/722pHCH－02BODWT603－K1/1000+Fenton。1.21.2.1Fenton、、pH、。Fen-ton、、pH。1pH1/424h5Fenton6130minCODFe2+。2H2O2/COD200mL16250mLpH=3.0Fe2+/H2O20.2～0.3H2O2/COD0.5、1.0、2.0、3.0、4.0、6.090minpH9.030minCOD。3Fe2+/H2O2200mL16250mL2pH=3.0Fe2+/H2O20.2、0.3、0.4、0.5、0.8、1.090minpH9.030minCOD。4pH200mL16250mL2390minpH2.0～10.0COD。5500mL11500mL23pH4pH9.030minCOD。1.2.2PVC。1。ⅡFentonⅢFenton。22.12.1.1pH=3.0295.19mg/L90minH2O2/COD0.5、1.0、2.0、3.0、4.0、6.0FentonCODCOD2。CODH2O2/COD=0.5FentonCOD73.59%H2O2/COD=6.094.87%。FentonOH·OH·FentonOH·Fenton。6220112Fenton2H2O2/COD≤2.0CODH2O2H2O2/COD≥3.0CODH2O2。Dutta6H2O2HO·H2O2。HO·+H2O2→HO2·+H2O2HO·+HO－2→HO2·+OH－HO2·HO·7Fe3+。Fenton21.4mg/LH2O2/COD1.0100%。Q3CODQH2O2/CODQ=1.0234R+0.2249Q=H2O2/ΔCODR=H2O2/COD。3Q=H2O2/ΔCODR=H2O2/CODr2=0.9996H2O2/COD1.0COD1.0234。0COD0.2249。。2H2O2/COD=2.0CODH2O2/COD1.02.0COD7.95%2.06.0H2O2/COD1.0COD2.48%。H2O2H2O2/COD=2.0COD91.69%。2.1.2pH=3.090minH2O2/COD=2.0pH=9CODFe2+/H2O24。Fe2+/H2O2=0.20110.0mg/L。Fe2+/H2O20.200.30FentonCOD86.23%5Fenton634CODCODFe2+/H2O2＞0.50CODFe2+Fe3+Fen-ton。FentonFe2+/H2O20.301.0COD1。1Fe2+/H2O2=0.3FentonCODFe2+/H2O2=1.0CODFe2+/H2O2=0.50CODFenton。Fe2+/H2O2=0.20。1FentonCODFe2+/H2O20.31COD/%65502.1.3pHH2O2/COD=2.0Fe2+/H2O2=0.20～0.3090minpHCOD5。5pHFenton5pH2.0～4.0COD4.0pH7.0CODpH＞7.0CODFenton。HO·。FentonpH3.0。2.1.4642011H2O2/COD=2.0Fe2+/H2O2=0.20～0.30pH=3.0COD6。6FentonCODFenton60minCODCOD。30min0.5mg/L。FentonCOD60minFenton。6Fenton2.2FentonFenton2。2COD%CODFentonCODFenton—80.56Fenton27.1287.042COD80.56%COD27.12%FentonCOD87.04%FentonCOD60%。CODFentonFentonFentonFentonFentonCODFentonFe2+Fe3+Fenton。FentonFenton。Fenton。FentonCODFenton。31FentonH2O2/COD=2.0Fe2+/H2O2=0.20～0.30pH3.060min。FentonCOD5Fenton6581.35%。2COD80.56%COD60%87.04%99.86%。1．PCBJ．200834684－86．2．－FentonD．2006．3．－FentonJ．200935174－78．4．－Fenton－D．2009．5．FentonJ．200637331－34．6DuttuKMukhopadhyaySBhattacharjeeSetal．ChemicaloxidationofmethyleneblueusingaFenton－likereactionJ．JournalofHazard-ousMaterial200184157－71．7．FentonJ．2011622491－494．ResearchonFentonOxidationProcesstoEnhancetheTreatmentofCopperWastewaterPretreatedbyMicroElectrolysisLIUPin-tingLANShan-hongWENNan-xingCollegeofChemistryandEnvironmentalEngineeringDongguanUniversityofTechnologyDongguan523808ChinaAbstractTheresearchtakescopperwastewaterpretreatedbymicroelectrolysisinaGuangzhouelectroncompanyasthepro-cessingobjectusingtheFentonoxidationprocesstostrengthenthetreatmentofwastewaterandthenachievefurtherreduceofCOD．ThesinglefactorexperimenthasbeenusedtodeterminetheoptimalFentonoxidationofH2O2/CODFe2+/H2O2initialpHandthereactiontime．ThepilottesthasaswellasbeenusedtoinvestigatetheeffectofthemicroelectrolysisandFentonmix-processingandtimeseriesoperationprocessing．SinglefactorexperimentsconcludedthatthebestH2O2/CODis2.0thebestFe2+/H2O2is0.2～0.3theoptimalpHis2.0～4.0andthebestreactiontimeis60min．Inpilotexperi-menttheeffectoftreatmentintheseriesrunisbetter．TheeliminationrateofCODis87.04%andthetotalcopper＇seliminationrateachieves99.86%．KeywordsFentonenhancemicroelectrolysiscopperwastewater