FeSO4对AO工艺处理印染废水效果的影响王娟

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EffectsofFeSO4onthetreatmentefficiencyofprintinganddyeingwastewaterbytheprocessofA-OsystemWangJuan1,FanDi2(1.CollegeofEnvironmentalandMunicipalEngineeringofQingdaoTechnologicalUniversity,Qingdao266033,China;2.QingdaoSaierEnvironmentalProtectionCo.,Ltd.,Qingdao266101,China)FeSO4A—O1,2(1.,266033;2.,266101)[]FeSO4“—”(A—O)。FeSO4,A—O,FeSO4A—O。,FeSO4CODFeSO4,COD653mg/L、480、pH=9.2、7h、FeSO430mg/L,,7h,COD88mg/L、52。[];;;[]TQ314.253;X703.1[]A[]1005-829X(2010)01-0022-04Abstract:ThemethodofputtingFeSO4intohydrolyticacidificationtankhasbeenusedinordertoimprovethetreatmentprocessesofhydrolyticacidificationplusaerobicoxidation(A-O).TheexperimentalresultsarecomparedbyusingtheA-OsystemundertheconditionsofwithFeSO4andwithoutFeSO4respectively.ThechangingtrendsofCOD,chromaticityandpHarediscussed.Meanwhile,thetreatmentefficiencyunderdifferentdosagesofFeSO4isdiscussed.TheresultsindicatethattheremovedefficiencyofCODandchromaticityundertheconditionofwithFeSO4aremuchbetterthantheresultofundertheconditionwithoutFeSO4.WheninfluentCOD,chromaticityandpHare653mg/L,480timesand9.2respectively,andreactiontimeis7hinhydrolyticacidificationtank,andthedosageofFeSO430mg/L,theoptimumresultsareobtained.Afteritistreatedwiththeaerobicreactor,theeffluentCOD88mg/L,chromaticity52times.Keywords:FeSO4;hydrolyticacidification;aerobicoxidation;printinganddyeingwastewater“—”(A—O)〔1-4〕,,,,,(:、、),,,FeSO4。FeSO4,A—O。11.11。,30120101IndustrialWaterTreatmentVol.30No.1Jan.,201022——2010-01,30(1),DO0.5mg/L,FeSO4,,,,DO2~4mg/L,,,。400mm×400mm×600mm,D200mm×1500mm,。1.2COD、MLSS、、pH〔5〕。1.3,COD653mg/L,40,pH=9.2。22.1FeSO4FeSO4,23。23,30mg/L40mg/LCOD,30mg/LCOD40mg/L,30mg/L。2.2FeSO4pHFeSO4,pH4。4,FeSO4,,pH,,2~6h,pH,9.28.5,7h,pH7.3,,7h。。、、、、,〔6-7〕。,()(),,,、。1~3,〔6〕。,,—N=N—。,,,,pH,,,,6~7hpH,7h,7h。FeSO4,2hpHFeSO4,2~6h,7h,pH7.0,,7h,pH。FeSO4,FeSO4,FeSO4,,,,FeSO4pH。9.59.08.58.07.57.06.56.05.55.0023456789/hFeSO430mg/LFeSO4pH4pH,:FeSO4A—O23——2010-01,30(1)2.3FeSO4CODFeSO430mg/LFeSO4,DO≤0.5mg/L、MLSS=4000mg/L,2~9hCOD12。1,COD,7h,FeSO4COD653.0mg/L316.1mg/L,51.6%,FeSO47hCOD653.0mg/L380.0mg/L,41.8%,,COD。2,,7h,FeSO4,480196,59.2%,FeSO47h480302,37.1%,,,7h。FeSO4COD,FeSO4FeSO4,2h。FeSO4,、、Fe2+。(1):,—N=N—,,。,,。、,。(2):。,,,,。,,,。,。,,,、、。(3):Fe2+,Fe2+,,,,、,,。2.4FeSO4FeSO4FeSO4、7h,,7h,3。3,FeSO4,COD,;FeSO4,COD,。:2FeSO4/hFeSO4FeSO4//%//%342810.833630.0439617.529638.3537222.527842.1633230.824050.0730237.119659.2829239.218461.7928840.017663.304800.04800.024565.036823.33FeSO4COD/(mg·L-1)COD/%//%FeSO4132.265.212060.3FeSO488.072.25274.51FeSO4COD/hFeSO4FeSO4COD/(mg·L-1)COD/%COD/(mg·L-1)COD/%3581.810.9533.518.34556.414.8489.125.15522.420.0416.636.26461.029.4367.043.87380.041.8316.151.68373.542.8308.952.79367.643.7302.353.70653.00.0653.00.02611.96.3547.916.124——2010-01,30(1)(1)FeSO43。FeSO4,Fe2+,,,,。FeSO4Fe2+,FeSO4。(2)、。。。,(、)。(、、、)、〔、、,A(HSCoA),〕、〔Aβ-,A(CH3COSCoA),(TCA)〕。(TCA),,、、、。。FeSO4,Fe2+,Fe2+。,。Fe2+。,,,。Fe2+,,。,Fe2+Fe3+,Fe3+。Fe3+,,、,、、、,,、,。,FeSO4,,、、,FeSO4。3(1),FeSO4A—O,COD653mg/L、480,COD88mg/L、52,COD86.5%89.2%。(2),FeSO4,A—O,,A—O。[][1].[M].:,2005:193-195.[2].[M].:,1999:32-34.[3],,,.[J].,2003,23(4):23-26.[4],.[J].,2004,35(2):57-60.[5].[M].3.:,1997:90-284.[6].[M].:,1998:5-46.[7],.[J].,1999,l8(2):88-90.[](1965—),1986,,。:13589273088,E-mail:wjfine@126.com。[]2009-08-25()!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!———,,.CN101240407,:,30~50℃/s700~850℃,60~90min,10~30℃/s1000~1150℃,300~360min,,300~400℃,,,S100,,。··,:FeSO4A—O25——

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