Fenton试剂处理硝苯地平医药废水的研究梅国平

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DecompositionofnifedipinesustainedreleasetabletsmedicalwastewaterbyFentonreagentMeiGuoping1,LuLianying2,YuZhongshan2(1.ResearchInstituteofEnvironmentalEngineeringandDesign,Huangshi435002,China;2.CollegeofChemistryandEnvironmentalEngineering,HubeiNormalCollege,Huangshi435002,China)Fenton1,2,2(1.,435002;2.,435002)[]Fenton,n(H2O2)∶n(Fe2+)、H2O2、pH、COD。,n(H2O2)∶n(Fe2+)=5∶1,30%H2O20.4mL,pH=2.5,24h,20℃、120r/min,COD74.5%,BOD5/COD0.100.31,,。[]Fenton;;[]X703.1[]A[]1005-829X(2010)09-0025-03Abstract:Fentonreagenthasbeenusedfortreatingthewastewaterfrommedicationnifedipineproduction.Theef-fectsofn(H2O2)∶n(Fe2+),H2O2concentration,pH,temperatureandreactiontimeontheCODremovalrateofsimu-latedwasterarediscussed.TheresultsshowthatCODremovalrateofthewastewaterreaches74.5%andBOD5/CODhasincreasedfrom0.10to0.31,whenn(H2O2)∶n(Fe2+)=5∶1,H2O2(30%)0.4mL,solutionpH2.5,reactiontime24h,temperature20℃,120r/min.Itindicatesthatthebiodegradabilityhasbeenimprovedgreatly,andcreatedthecon-ditionsforthefollowingbiologicaltreatment.Keywords:Fentonreagent;nifedipine;wastewaterfrommedicationproduction、,,,〔1〕。,、〔2-3〕,。TOC、、,,BOD5/CODCr0.10,,,。Fenton。、、、,〔4〕、〔5〕、〔6〕〔7〕、〔8〕、〔9〕、〔10-11〕、〔12〕、〔13〕,。,COD,,,。11.1:JH-12COD,THZ-82,,AB204-N。:、、、、、、30%H2O2、FeSO4·7H2O,AR。1.2FentonFentonH2O2Fe2+,Fenton〔14〕:Fenton———HO2·HO·,,,30920109IndustrialWaterTreatmentVol.30No.9Sep.,201025——2010-09,30(9),。1.3,、、、、、、、,,,121g/cm3,TOC10000mg/L,SS3200mg/L,pH=5.0,PO43-1100mg/L,NH3-N648mg/L,B/C0.10。1.4TOC,,。,,Fneton。,。Ca(OH)2,,,COD1029mg/L。,FeSO4·7H2OH2O2,pH,COD。22.1n(H2O2)∶n(Fe2+)COD5200mL,30%H2O20.6mL,FeSO4·7H2O,pH=3.5,、120r/min2h,24hCOD。1。1,n(H2O2)∶n(Fe2+),CODCr,,n(H2O2)∶n(Fe2+)=5∶1。n(H2O2)∶n(Fe2+),H2O2HO·,;n(H2O2)∶n(Fe2+),H2O2,O2,HO·,HO·,Fe3+,。2.2H2O2CODn(Fe2+)∶n(H2O2)=5∶1,pH=3.5,、120r/min2h,24h,H2O2COD。2。2:H2O2,CODCr,,,50%;H2O20.4mLCODCr,B/C=0.31,。H2O2HO·,COD;H2O2,H2O2HO·,;,H2O2,COD。2.3pHCODn(Fe2+)∶n(H2O2)=5∶1,30%H2O20.4mL,pH1.5、2.5、5.0、7.0、9.0,、120r/min2h,24h,pHCOD。3。3,pH=2.5。pH,H+,Fe3+Fe2+,,Fenton26——2010-09,30(9)。Fenton〔14〕,pHHO·,Fe2+,。2.4CODFentonpH=2.5,COD,4。4,,FentonCOD,COD。,HO·,COD,H2O2H2OO2,HO·。,Fenton(20℃)。2.5CODn(Fe2+)∶n(H2O2)=5∶1,30%H2O20.4mL,pH=2.5,120r/min,2h,4、8、12、24、48h,COD。5。5,COD,24h,。·OH,,H2O2,,COD。3Fenton:n(Fe2+)∶n(H2O2)=5∶1,30%H2O20.4mL,pH=2.5,24h,20℃、120r/min,COD74.5%。:。,,,,70%。Fenton,COD74%,B/C=0.31,。Fenton,。,。[][1].O3/GAC/UV[J].,2005,18(2):4-6.[2].[J].,2007,16(2):179-180.[3],,,.[J].,2008,29(2):76-77.[4],,.Fenton[J].,2008,30(6):22-25.[5].[J].,2008,36(14):6071-6072.[6],,.Fenton[J].:,2006,36(4):655-659.[7],.Fenton[J].,2006,26(4):62-65.[8],.Fenton[J].:,2008,29(3):217-220.[9],,,.Fenton[J].,2007,24(7):29-30.[10],,,.Fenton[J].,2006,22(17):18-21.[11],,.Fenton[J].,2007,20(2):111-114.[12],,.Fenton[J].,2008,14(2):265-269.[13],,,.Fenton[J].,2006,11(5):81-84.[14],,,.Fenton[J].,2000,21(3):93-96.[](1963—),1984,,。:0714-3802568,E-mail:mgp6302@yahoo.com.cn。[]2010-05-25(),:Fenton27——

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