废铁屑深度处理焦化废水新方法石兴阳

12FEnvironmentalScience&Technology3312F201012Vol.33No.12FDec.2010*430062。、、CODCODtCOD。。1hCOD84%91%COD43mg/L。X703Adoi10.3969/j.issn.1003-6504.2010.12F.0871003-6504(2010)12F-0327-03NewMethodofAdvancedTreatmentofCokingWastewaterbyScrapIronSHIXing-yang,WANGHai-ren*,CHENGeng,QUJun-eFacultyofMaterialsScienceandEngineering,HubeiUniversity,Wuhan430062,ChinaAbstractCopperized-ironwasusedaselectrodeforadvancedtreatmentofcokingwastewaterindifferentcontrolledconditiontoexploretheoptimaltreatmentscheme.Thecontrastexperimentofinternalelectrolysis,constantcurrentmode,constantpotentialmodeandpulsecurrentmodeshowedthatinthepulsecurrentmode,powerconsumptionfortheunitCODremovalwasmuchlessthanintheconstantcurrentandconstantpotentialmode.Andatthesametime,thelinearcorrelationbetweenCODremovalandtreatmenttimeofpulsecurrentmodewasthebest.Therefore,pulsecurrentmodeisconsideredtobemoreoperableinactualoperationprocess.Addingoxidanttothesolutiontobedegradatedatthepulsecurrentsmodecanfurtherimprovethedegradation.After1hour,theCODreaches43mg/Lwithremovalof84%,andtheefficiencyofdecolorizationreaches91%,showingthatthequalityofoutputwaterhasreachedtheGradedischargestandardsofwaterpollutants.Keywordscopperized-iron;currentmode;cokingwastewater;advancedtreatment2010-08-24(1984-)[e-mail]*。、、、、、[1-4]。COD200～400mg/L。COD。TiO2[5]、[6]。[7-8]。。11.1pH6~7COD360~380mg/L。。1:COD376.9mg/L2:COD268.3mg/L33。1.25%NaOH50～60℃3～41%H2SO42%2min。1.3CS300。、100mA、100mV100Hz100mA0.1。0、20、40、60、90、120min5mLCODCOD。。1.4COD(HH-6。GB11903-1989。22.1、100mA、100mV100Hz100mA0.120、40、60、90、120min5mLCOD1。COD。120minCOD＜＜＜44%67%70%73%。COD。CODtR2＜＜＜CODt。CODCOD。0.3475mg/(L·min)0.0896mg/(L·min)3.8。。2.22、3COD。21/6。3COD。。COD33%COD90mg/L。2.12.2。2.332812F400g/L、100Hz20、40、60、90、120min5mLCOD4~5。4COD。(5)。。1hCODCOD84%91%COD43mg/L。31、、CODCODCODtCODCOD。。21h84%91%COD43mg/L。[][1]PengLai,Hua-zhangZhao,ChaoWang.Advancedtreat－mentofcokingwastewaterbycoagulationandzero-valentironprocesses[J].JournalofHazardousMaterials207147232-239.[2]ZhaoWen-tao,HuangXia,LeeDuu-jong.Enhancedtreat－mentofcokeplantwastewaterusingananaerobic-anoxic-oxicmembranebioreactorsystem[J].SeparationandPurifi－cationTechnology200966279-286.[3]ChenTianhu,HuangXiaoming,PanMin.Treatmentofcokingwastewaterbyusingmanganeseandmagnesiumores[J].JournalofHazardousMaterials2009168843-847.[4]MiguelMinhalma,MariaN.dePinho.Developmentofnanofiltration/steamstrippingsequenceforcokeplantwastewatertreatment[J].Desalination200214995-100.[5],.TiO2[J].,2009,22(9):1049-1056.XiaoJun-xia,WuXian-ge.TiO2photocatalyticoxidationtreatmentandanalysisoforganicpollutantcomponentsofdischargewastewaterfromcokingwastewatertreatmentsta－tion[J].ResearchofEnvironmentalScience,2009,22(9):1049-156.(inChinese)[6],,,.-[J].(),2005,22(4):79-81.QuXiao-ping,WuXiao-hui,LuXiao-hua,etal.Advancedtreatmentofcokingwastewaterbyactivatedcarbon-mi－crowaveirradiation[J].JofHUST(UrbanScienceEdition),2005,22(4):79-81.(inChinese)[7],,.[J].,2008,25(3):269-273.LuYong,YanLian-he,LiBing,ZhouShen-fan.Pretreat－mentofcokingwastewaterbycopperizedironinternalelec－trolysissystem[J].FineChemicals,2008,25(3):269-273.(inChinese)[8],,.Cu/Fe[J].,2009,28(2):8-11.ChenWen-lin,WuDe-li,MaLu-ming.PretreatmentofcokingwastewaterusingCu/Feinternalelectrolysisprocess[J].SichuanEnvironment,2009,28(2):8-11.(inChinese)329