纺织印染废水的湿式空气氧化处理刘刚

35120011浙　　江　　大　　学　　学　　报　　()JournalofZhejiangUniversity　　(EngineeringScience)Vol.35№.1Jan.2001:1998-09-01:(59472020);(596048):　,(1969-),,,,.刘　刚,雷乐成,岑沛霖(,310027)　:,.300℃,120minCOD56%,,0.040.40,.,,.,.:;;;:X703　　　　　:A　　　　　:1008-973X(2001)01-0037-04,.,、,,.(WAO)CO2H2O[1],,,,.,、[2,3],[4,5].WAO,.1　1.1　WAO、,1.,.1　Fig.1　Reactorsystemofwefairoxidation1.2　,CODCr11100mg/L,BOD5440mg/L,pH6.61..1.3　CODHACH-DR2000COD.0.05g、2.5mL5mL、1mol/L.2mL150℃2h,CODCODCr.BOD5.1.4　WAO60～70℃1.4L,1MPa;,.,,,.2　2.1　COD2　COD　　Fig.2　EffectofheatingonCODandbiodegradabilityofwastewater,1～2h.,CODCr,2.20℃150℃,COD,0.09%,,COD,300℃COD18%.;[6]..BODCOD,.[7].2.2　WAOWAO,3.COD.150℃200℃120minCOD8%30%,300℃120minCOD56%.,[5].,、.、.,,.,COD,,COD.,,,,COD,COD.WAO4.300℃120min0.040.40.,.3　WAOFig.3　CODremovalofprintinganddyingwastewatebyWAOmethodatdifferenttemperature4　WAO　Fig.4　BiodegradabilitgofprintinganddyingwastewateafterWAOtreatment38浙　江　大　学　学　报(工学版)　　　　　　　　　2001年　3　WAO,,,.,.X,Y,,-dYdt=kY.(1)Y=Y0t=0.(2)(1)Y=Y0e-kt.(3)Z,Z=Y0/X0,(4)(4),Y0X0.X=X0(1-Z)+X0Ze-kt.(5)COD,CODCOD=COD0(1-Z)+COD0Ze-kt,(6)1　Tab.1　Modelparametersofwetoxidationkineticsatdifferenttemperature(℃)Zk,(h-1)1500.10420.48210.782000.32860.83781.782500.49402.41500.183000.50243.16390.63(6),1.5,.WAO,,Arrhenius.、5　　　Fig.5　Comparisonsbetweenmodelsimulationandexperimentaldata.,、;、、.,、;,、,,Z.,,[8].,,.,(6),,COD100%.4　　WAO.:WAO39　第1期刘　刚,等:纺织印染废水的湿式空气氧化处理CO2H2O,.WAO:,,,.,WAOCOD,300℃,2.5MPa120minCOD56%.,.:[1]　YuePL.Advancedwaterandwastewatertreatmenttechnologies[A].ProceedingsoftheAisa-Pacificconferenceonsustainableenergyandenvironmentaltechnology[C],Singapore:NationalUniversityPress,1996.7-16.[2]　BailiodCR,FaithBM,MasiO.Fateofspecificpollutantsduringwetoxidationandozonation[J].EnvironProg,1982,1:217-226.[3]　DietrichMJ.RandallTL,CanneyPJ.Wetairoxidationofhazardousorganicsinwasterwater[J].EnvironProg,1985,4:171-177.[4]　LeiL,HuX,ChenG,etal.Wetairoxidationofdesizingwastewaterfromtextileindustry[A].ProceedingsoftheAsia-Pacificconferenceonsustainableenergyandenvironmentaltechnology[C].Singapore:NationalUniversityPress,1996.165-172.[5]　SkaatesJM,BriggsBA,LamparterRA,etal.Wetoxidationofglucose[J].CanadianJChemEng,1981,59:517-521.[6]　MantziviosD,LivingstonAG,HellenbrandR,etal.Wetairoxidationofpolyetherleneglycols;mechanisms,intermediatesandimplicationsforintegratedchemicalbiologicalwastewatertreatment[J].ChemEngSci,1996,51:4219-4235.WetairoxidationofprintinganddyingwastewaterLIUGang,LEILe-cheng,CENPei-lin(Dept.ofChemicalEngineering,ZhejiangUni.,Hangzhou310027,China)Abstract:Thewetairoxidationofprintinganddyingwastewateranditsreactionkineticswereinvestigatedinthepresentwork.ACODremovalof56%wasobtainedafterthewastewaterwastreatedwithwetairoxidationat300℃for120min.Furthermore,thebiodegradabilityofthewastewaterwasimprovedfrom0.04to0.40.Theprintinganddyingwastewatercontainmanykindsofpollutants,suchasdyestuffanddyingauxiliary;someofthepollutantsareeasytobeoxidized,whiletheothersaredifficulttobeoxidized.Akineticmodelforthewetairoxidationofprintinganddyingwastewaterwasconstructedonthebasisofthereactioncharacters,andthemodelsimulationswereingoodagreementwithexperimentaldata.Keywords:printinganddyingwastewater;wetairoxidation;reactionkinetics;wastewatertreatment(:张　明)40浙　江　大　学　学　报(工学版)　　　　　　　　　2001年