海绵铁对酸性媒介黑T废水脱色的研究高孟春

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—————————————————————————————————————————————StudyonthedecolorizationofacidicmordantblackTwithspongeironGaoMengchun1,2,ZhangXiaojing2,LiBing2,LiangFangyuan2,YangLijuan2(1.KeyLaboratoryofMarineEnvironmentandEcology,Dept.ofEducation,OceanUniversityofChina,Qingdao266100,China;2.CollegeofEnvironmentalScienceandEngineering,OceanUniversityofChina,Qingdao266100,China)T1,2,2,2,2,2(1.,266100;2.,266100)[],T、、pH、T。,T,98%。,30min。T,。,XRDT。[];T;[]X703.1[]A[]1005-829X(2009)09-0031-03Abstract:ThedecolorizationofmordantblackTwastewaterwithspongeironhasbeeninvestigatedthroughbatchexperiments.Theinfluentialfactorsofit,suchasreactiontime,spongeironparticlesize,pHandthedosageofspongeironondecolorizationefficiencyareanalyzed.TheexperimentalresultsdemonstratesthatmordantblackTcouldbeeffectivelydecolorizedwithspongeiron,andmorethan98%decolorizationratecouldbeobtained.Thede-colorizationrateincreasedwiththeincreaseofreactivetime,andtheoptimaltimeis30min.Theacidicconditioncanimprovethedecolorizationrate,andthedecolorizationratedecreaseswiththeincreaseofparticlediameter.Basedonthestudyofdecolorizationefficiency,thesurfacechemicalcharacteristicsofspongeironbeforeandafterreactionareanalyzedwithUV-Visspectrum,andX-raydiffraction(XRD).Keywords:spongeiron;acidicmordantblackT;decolorization29920099IndustrialWaterTreatmentVol.29No.9Sep.,2009[](2007GG10006002);(NCET-0700780)95%,96%。[][1],,.[M].3.:,1994:88-91.[2].[M].:,1989:354.[3],.[J].,1997,17(2):17-21.[4],,.[J].,2007,27(9):48-50.[5],,,.Fenton[J].,2004,30(3):17-20.[6]ChenR,PignatelloJJ.RoleofquinoneintermediatesaselectronshuttleinFentonandphotoassistedFentonoxidationsofanomaticcompounds[J].EnvironmentalScience&Technology,1997,31(8):2399-2406.[7]KuoWG.DecolorizingdyewastewaterwithFenton’sreagent[J].WaterResearch,1992,26(7):881-886.[8],,,.FentonH[J].,2001,20(3):281-285.[9]GulyasH.Processesfortheremovalofrecalatrantorganicsfromindustrialwastewaters[J].WaterSci.Tech.,1997,36(2/3):9-16.[](1982—),。:13483423990,E-mail:gaoxiang0515@126.com。:,,。E-mail:kdyyf@163.com。[]2009-05-17()31——2009-09,29(9),,。,。,、〔1〕。,〔2-3〕。,,,。,,、,〔4-5〕。T,XRDT,。11.1:1~8mm,()90%,96%~97%,3%~4%,2.3~2.7g/cm3,1.70~1.88g/cm3;Tλmax=620nm。1.2、250mL,2%1min,,、pHT100mL,150r/min,,,,15000r/min15min,,。22.1ρ(T)=40mg/L、pH=6.04、30℃、1~3mm3g,T1。1,T,10min80.43%,30min96.12%,,50min97.72%,T40mg/L0.91mg/L,30min。2.2pHρ(T)=200mg/L、30℃、30min、1~3mm3g,pHT2。2,pH1.02.1,80.58%98.65%,pH=1226.10%。pH,,T,〔6〕。2.3ρ(T)=200mg/L、pH=6.04、30℃、30min、3g,T3。32——2009-09,29(9)3,。T,,,,,。2.4ρ(T)=200mg/L、pH=6.04、30℃、30min,,4。4,,。1g5g,56.34%97.95%。5g,,,。2.5--,T620nm,231nm320nm。,T,“—N=N—”,,,;320nm,231nm246nm,。2.6ρ(T)=200mg/L、30℃、30min、1~3mm3g,XRD,,Fe+3O(OH)、Fe2O3,,T。3(1)T,30min。(2)、pH,T。(3)T,“—N=N—”,,,。(4),Fe+3O(OH)Fe2O3,。[][1],,.[J].,2001,27(6):311-313.[2]SangkilN,PaulGT.Reductionofazodyeswithzero-valentiron[J].WaterResearch,2000,34(6):1837-1845.[3]CaoJiasheng,WeiLiping,HuangQingguo,etal.Reducingdegradationofazodyebyzero-valentironinaqueoussolution[J].Chemosphere,1999,28(3):565-571.[4],,.[J].,2004,27(6):18-20.[5],.[J].,2004,20(3):30-32.[6]FanXiaobin,ZhangFengbao,ZhangGuoliang,etal.Mechanismof5-amino-2-formylbenzenesulfonicacidformationduringreduc-tionof4,4’-dinitrostilbene-2,2’-disulfonicacidbyzerovalentiron[J].DyesandPigments,2007,75(1):189-193.,:T!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!··:624,(DuoyuanGlobalWater:DGW),7000。:,。[](1973—),2003,。:0532-66781061,E-mail:mengchun@ouc.edu.cn。[]2009-05-05()33——

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