电絮凝法处理模拟罗丹明B废水的研究

:(19652),,,,:2005210227B(,541004):pHB,,,,,;,,;,,Fe2+,,,,pH7;17V,115cm,pH=4,90min,1000mgL-1,99%,COD:;;B;;:X703:A:167129905(2006)0420040204,[13],,,,,B,1,FeAl,,Fe,::Fe-2e-Fe2+Fe2++2(OH-)Fe(OH)24Fe(OH)2+O2+2H2O4Fe(OH)3,,Fe2+Fe(OH)2:2H++2e-H2,,,;,2211:Spectrumlab22PC;pHS-25;sartorius;KDM;(112527V):B(AR)(AR)(AR)(AR)(AR)(AR)2121B,,213(1)B-10mgL-1B,456,20,Spectrumlab22PC,550nm[5]17(c)-(A),c-A354200604Technology&DevelopmentofChemicalIndustryVol135No14Apr12006,2Fig11Sketchmapforelectrolysisset(2)400mgL-1B,,KHSO4NaOHpH,,,B;CODFig.2StandardworkcurveofrhodamineB3311B,8V11V14V17V20V23V,115cm,1Table1EffectoftroughvoltageonthedegradationofrhodamineB/%U/V/min153045607590105120840154551407011780117811208717791134941521147192491425419463135701088718495181871001449123571277113378111871469419597106981441750136741948119494175971549813120391996317270192871379613497117234219776124951259814598199Fig.3DegradationrateofrhodamineBondifferenttroug3,B3,,23V,75min98199%,,,,17V23VBCOD,23V,75min,COD85102%312B,110cm115cm210cm215cm,17V,2Table21EffectofspacebetweentheelectrodesonthedegradationofrhodamineB/%d/cm/min1530456075901103611555178741478813194165971101155013674194811949417597154981312103219749142751688511293116961762153019239180631168211491118941864,B4,115cm,B,98131%,90%144:BFig.4DegradationrateofrhodamineBondifferentspacebetweentheelectrodesCOD,115cm,17V,COD77182%313pHB17V,115cm,pH2167BpH46810B,3Table31EffectofinitialpHvalueonthedegradationofrhodamineB/%pH/min1530456075902167501367419481194941759715498131449189771279217596188991109911165113878111941999910599124991288531817515089134911429518597150105612485122951749714898194991175BpH35,pH=6,BpH,,,,,Fig.5DegradationrateofrhodamineBondifferentinitialpHvaluCOD,pH=675min,COD75108%313B17V,115cm,pH=4,200mgL-1400mgL-1600mgL-1800mgL-11000mgL-1,46Table41EffectofinitialconcentrationofthesolutiononthedegradationofrhodamineB/%/mgL-1/min15304560759020064154961349812898179981939912240049189771279217596188991109911160052126771569110398144981849911680059189791069111697151981579911210006411777156901839514799165991696,200mgL-1,,30min96134%,,45min90min,99%Fig.6DegradationrateofrhodamineBondifferentinitialconcentrationofthesolutioCOD,1000mgL-1120min,COD90152%3,B,,B,,,17V115cm,2435BB,;,;,,BCOD,BCOD:[1],1[J]1,2002,22(5):5271[2]LinShengH,etal1Treatmentoftextilewastwaterbyelectrochemicalmethod[J]1Wat1Res1,1994,28(2):27722821[3]1-[D]1:,20031[4],1[J]1,2000,(8):192201[5],1FentonB[J]1,2004,24(6):72627291TreatmentofSimulateRhodamineBWastewaterbyElectroFlocculationMethodMODe2qing(DepartmentofElectronicEngineering,GuilinUniversityofElectronicTechnology,Guilin541004,China)Abstract:Theinfluencefactorswhichaffecttheremovalefficiency,suchastroughvoltage,spacebetweentheelectrodes,initialpHofwastewater,initialconcentrationofthedyesolution,wereinvestigated.Thelargertroughvoltagemarkedthebetterdecoloreffect,however,whenthevoltagewasbiggerthanacertainvalue,theimprovementoftheeffectwasnotobviousandtheenergyconsumptionwasincreased.Thedecoloreffectwasbetteraccordingasthesmallerelectrodespace.ThetreatmenteffectwasgoodwhenthepHofwastewaterwas7andtheconcentrationwaslower.Whenthetroughvoltagewas17V,theelectrodespacewas115cm,pHwas4,thedecolorrateof1000mg/Lwastewaterwasupto99%after90mindegradation.Keywords:electroflocculation;ironanode;rhodamineB;tankvoltage;decolor344:B