OALib Journal期刊
ISSN: 2333-9721
费用:99美元
|
|
|
电生成Fenton试剂及其对染料降解脱色的研究
, PP. 98-103
Keywords: 染料,降解,脱色,羟基自由基,电化学方法
Abstract:
以可溶性铁为阳极,多孔石墨电极为阴极,Na2SO4为支持电解质.通电后,铁从阳极溶解生成二价亚铁离子Fe2+,氧在阴极上还原为过氧化氢H2O2,于电解现场发生Fenton反应,产生羟基自由基即Fenton试剂.在低电流密度(10mA/cm2)下,可有效地抑制阴、阳两极副反应的发生,所产生的羟基自由基浓度足以有效地进行染料废水的降解与脱色,脱色率达100%,CODcr去除率达80%.
References
[1] | PignatelloJ,SunY.Completeoxidationofmetolachlorandmethyparathioninwaterbythephotoas-sistedFentonreaction[J].WaterRes.,1995,29(8):1837.
|
[2] | SharvellHF.Theactivationenergyofonionicreaction[J].J.Chem.Educ.,1996,43(10):555.
|
[3] | CHENZhen,ZHENGXi,CHENRi-yao,etal.Fentonreagentproducedinelectrolysiscellanditsusingindegradationanddecolourizationforacidchromedye[J].EnvironmentalChemistry(Chinese),2001,20(3):275.
|
[4] | ZHENGXi,CHENRi-yao,CHENZhen,etal.Fentonreagentproducedinelectro-chemicalcellanditsusingindegradationanddecolourizationofdyewastewater[J].TechniquesandEquipmentforEnvi-ronmentalPollutioncontro(Chinese),2001,2(4):72.
|
[5] | CHENRi-yao,ZHENXi,CHENZhen,etal.Theproductionoffentonreagentwithelectro-chemicalmethodanditsapplicationindegradationanddecolourizationofdye[J].JournalofJilinInstituteofChemicalTechnology(Chinese),2001,18(3):1.
|
[6] | MichaelS.Bahorshy,Texitiles[J].WaterEnvironmentResearch,1997,169(4):658.
|
[7] | LIJia-zhen.DyeWastewaterTreatmentintheDyeIndustries[M].Beijing:ChemistryIndustryPress,1997.
|
[8] | WANNian-sheng.OrganicContaminationChemistry[M].Beijing:SciencesPress,1990.
|
[9] | NaumczykJ,SzpykowiczL,ZilioGrandi.Electrochemicaltreatmentoftextilewastewater[J].WaterSci.Technol.,1996,33(7):17.
|
[10] | PignatelloJ.Completeoxidationof2,4-DbyFenton''sreagent[J].Environ.Sci.Technol.,1990,24:378.
|
[11] | KuoWG.Decolorizingdyewastewaterwithfentonreagent[J].Wat.Res.1992,26(7):881.
|
[12] | HustonPL,PignatelloJ.Reductionofperchloroalkanesbyferrioxalate-generatedcarboxylateradicalprecedingmineralizationbythephoto-Fentonreaction[J].Environ.Sci.Technol.,1996,30(2):3457.
|
[13] | BockrisJOM,ConwayBE,YeagerE,etal.ComprehensiveTreatiseofElectrochemistry[N].NewYork:ElectrochemicalProcessing,PlenumPress,1981.
|
Full-Text
|
|
Contact Us
service@oalib.com QQ:3279437679 
WhatsApp +8615387084133
|
|