高盐度染料中间体废水电化学处理研究

213Vol.21No.320046JournalofXingtaiVocationalandTechnicalCollegeJun.2004431221.3300132.0540350.015A/cm28.4V90minCODcr65%70%X703.1A1008—6129200403—0043—03CODcr[1][2~6]1CODcr16000mg/LpH6.52000NaCl9400mg/L1g/L2CODcr[7]pH520ApluspHMeterUV-2503WYK305030V05AUPVC781418cm2150ml10.010A/cm2CODcr20.005A/cm20.010A/cm20.015A/cm2CODcr30.005A/cm20.010A/cm20.015A/cm29.4g/LNaCl11.7g/LNa2SO41g/LCODcr11Table1Effectofdifferentelectrodestothetreatment1CODcrFe2+FeOH2FeOH3CODcr2CODcr12CODcr0.015A/cm28.4V90CODcr65%70%2004344pH6.50.015A/cm2Fig1EffectofelectrolysistimeonCODcrremovalrateFig2Effectofelectrolysistimeonchromaremovalrate31CODcrCODcr8.4%2Na2SO490CODcr9030%40%Na2SO4CODcr3NaCl34CODcr0.005A/cm24.5V120CODcr84.5%90.5%0.010A/cm26.3V8060minCODcr80.5%85.0%0.015A/cm28.4V60CODcr85.5%95.5%I=0.005A/cm2I=0.015A/cm2I=0.010A/cm23CODFig3EffectofelectrolysistimeonCODcrremovalrateI=0.005A/cm2I=0.010A/cm2I=0.015A/cm24Fig4EffectofelectrolysistimeonchromaremovalrateCODcrCODcr644nm180400nmCODcr[8]4Fe=4Fe2++8e4Fe2++10H2O+O2=4Fe(OH)3+8H+2Cl2e=Cl2Cl2+6H2O12e=4HClO2+8HCl+10[O]4OH4e=2H2O+O22H++2e=H2612004361SimulationofIndoorAirEnvironmentofTraditionalDormitoryinBeijingLIUYangWANGFu-junZHANGJing(WaterConservancyandCivilEngineeringCollege,ChinaAgriculturalUniversityBeijing100083China)Abstract:ThisstudyintendstoinvestigateindoorairenvironmentviatheflowfieldsinthetraditionaldormitoryinBeijing.CFD(computationalfluiddynamics)methodproducesdistributionofvelocityandmakesitpossibletoevaluateflowdifferenceseverywhere.TheCFDsoftware,Fluentisappliedtocalculateandshowtheresultofnumericalsimulation.Numericalsimulationsofthephysicalproblemunderconsiderationhavebeenperformedviaafinitevolumemethodforsolvingthegoverningequationsandboundaryconditions.Itisobviousthatairvelocityishighlyrelevanttothelocationofbed.Keywords:indoorairenvironmentCFDFluentGambitááááááááááááááááááááááááááááááááááááááááááááááááááááFe2+OHFe(OH)3Cl222-223HCLOCLOO3HCL++=++[O]HOClFe2+Fe(OH)31CODcrCODcr0.015A/cm28.4V90CODcr65%70%2Fe2+[1].[M].,1997.45.[2].[J].,2001,1455153.[3].[J].2002,243162164.[4].[J].1998,3910489495.[5]..[J]1998,3925962.[6]ShengHLin.Salinewastewatertreatmentbyelectrochemicalmethod[J].WasterRes,1998,32410591066.[7].CODcr[J].20022055557.[8].[J].199923108112.TreatmentofHigh-SalinityDyeIntermediateWastewaterbyElectrochemicalMethodLIUZhan-meng1,BAODong-jie2,LIJing21.EastChinaJiaotongUniversity,Nanchang,Jiangxi330013China2.XingtaiVocationalandTechnicalCollege,Xingtai,Hebei054035,ChinaAbstract:Theelectrochemistrymethodwasappliedforthetreatmentofhigh-salinitydyeintermediatewastewaterfromtheprocessof3-diethylaminophenol.TheresultsindicatethatCODcrandcolorremovalratecanreach70%and80%respectivelyundertheoptimumelectrolysisconditions(electricalcurrentdensity=0.015A/cm2,electrolysisvoltage=8.4V,t=90min).TheprimarymechanismofelectrochemicalreactionwasalsostudiedbyinvestingthetreatmentofdyeeffluentscontainingNaClandNa2SO4.Keywords:dyeintermediatewastewaterelectrochemistryorganiceffluentscontainingsalt