臭氧氧化法深度处理造纸废水的实验研究

　:,,,。　:(20776055)。臭氧氧化法深度处理造纸废水的实验研究＊马黎明　李友明　雷利荣(1.,510640;2.,510640)　:,、pH、、COD。:CODpH、;,COD,25℃。pH8.12,514mg(400mL),25℃10min,COD86.3%38.9%,。:造纸废水;臭氧氧化过程;COD;色度:X793　　　　:A　　　　:1671-4571(2010)04-0068-04　　,,,、。,、[1],,、,[2],,,。,2.07eV,CO2H2O。,,;,[3,4]。、,、、,COD、[5]。,,[6]。,COD(GB3544-2008),COD。1　1.1　实验装置及方法,1:,,,,10%KI。1　　　:400mL68PaperScienceTechnology　2010Vol.29No.4,,,、pH、,0.45μmCOD。1.2　实验材料及装置(1):,1。1　pH8.5±0.28.0±0.2COD/mg·L-1900±100500±50700±20600±20　　(2):B1-5(),0.05MPa,5g/h,60～80mg/L。(3):600mL,,。1.3　分析检测pH、SARTORIUSBasicpHMeterPB-10();[8];COD,COD150℃2hHACH620nm;,0.45μmpH7.6465nm。2　2.1　温度对臭氧化处理效果的影响4℃,,1L/min,43mg/L,5℃、15℃、25℃、35℃、45℃COD,400mL,10min0.45μmCOD,2。,5℃25℃,COD,,,,,,,[9]。25℃,COD83.8%36.5%,45℃,70.5%,13.3%,COD23%,,COD。,15℃～25℃。2　COD2.2　pH值对臭氧化处理效果的影响pH7.8～8.2,(23±2)℃,,pH4、6、8、10、12,3。,pH,COD,pH4,COD61.5%12.7%,pH8,84.3%,COD34.8%,pH12,COD92.7%48.5%,。:,COD,,,。pH(HO·),HO·2.80eV,,,CO2H2O。,HO·,O3,O3,,,[4]。pH7.8～8.2,COD84.3%34.8%,,,pH。69《》　20102943　pHCOD2.3　臭氧通入量对臭氧化处理效果的影响pH8.12,25℃,,,85、170、257、342、428、514mg10minCOD,4。　　　4　COD　　4,COD,,COD:85mg257mg,55.9%79.9%,24%,COD,11.2%21.2%,10%;514mg,,86.3%,6.4%,COD,38.9%。,O3,O3C=C、C=O,CO2H2O,。、、,O3HO·,COD。2.4　反应时间对臭氧化处理效果的影响(400mL),,42mg/L,5。,2min,55.8%,,COD,10min,83.4%,15min,,5.5%。COD8min,2min10%,10minCOD31.4%,15min,COD,,COD35.9%。,,,。5　COD3　　　(1),pH8.12,514mg(400mL),25℃70PaperScienceTechnology　2010Vol.29No.410min,COD86.3%38.9%,。(2)COD,,25℃,COD83.8%36.5%。(3)pH,COD,,,,pH=12,COD92.7%48.5%。(4),COD。257mg(400mL),,,COD。(5)COD,,2min55.8%,6min79.9%,COD,15min,35.9%。[1]　.[M].:,2001:326-335[2]　CokayCEbru,FikretK.AdvancedoxidationtreatmentofpulpmilleffluentforTOCandtoxicityremovals[J].JournalofEnvi-ronmentalManagement,2008,87:396-404[3]　FontanierV,FarinesV,AlbertJ,etal.Studyofcatalyzedozona-tionforadvancedtreatmentofpulpandpapermilleffluents[J].WaterResearch,2006,40(2):303-310[4]　KreetachatT,DamrongsriM,PunsuwonV,etal.Effectsofozona-tionprocessonlignin-derivedcompoundsinpulpandpapermilleffluents[J].JournalofHazardousMaterials,2007,142:250-257[5]　,.[J].,2009,29(1):33-35[6]　KChun-Han,HPo-Hung,CMeng-Wen,etal.Kineticsofpulpmilleffluenttreatmentbyozone-basedprocesses[J].Jour-nalofHazardousMaterials,2009,168:875-881[7]　,,,.[J].(),2003,19(4):394-397[8]　RosalR,RodriguezA,ZerhouniM.Enhancementofgas-liquidmasstransferduringtheunsteady-statecatalyticdecompositionofozoneinwater[J].AppliedCatalysisA:General,2006,305:169-175ExperimentalStudyontheAdvancedTreatmentofPulpandPaperMillEffluentsbyOzonationProcessMaLiming　LiYouming　LeiLirong(1.NationalEngineeringResearchCenterofPapermakingandPollutionControl,SouthChinaUniversityofTechnology,Guangzhou510640,Guangdong,China;2.StateKeyLabofPulpandPaperEngineering,SouthChinaUniversityofTechnology,Guangzhou510640,Guangdong,China)Abstract:Theozonationofbiologicaltreatedpulpingwastewaterwascarriedout.EffectsofozonationprocessonCODandcolorremovalrateatdifferenttemperatures,originalpHvalue,ozoneaddingdosageandreactiontimewereinvestigated.Theresultsindicatedthat,duringtheozonationprocess,CODandcolorremovalwasenhancedwiththeincreasingoftheoriginalpHvalue,ozoneaddingdosageandthereactiontime.Withthetemperaturein-creasing,CODandcolorremovalratefirstlyincreasedandthenreduced.Thetemperatureofthebestremovaleffectwas25℃.UndertheconditionsoftheinitialpH8.12,ozoneaddingdosage514mg(wastewater400mL)andtheozonationreactiontime10minat25℃,theaverageremovalratesofcolorandCODwerekeptupto84.3%and38.9%respectively.Thetreatmentefficiencywassignificant.Keywords:pulpandpapermilleffluents;ozonationprocess;COD;color71《》　2010294