UVO3Fe3工艺深度处理印染废水的研究曹玉萍

23420108POLLUTIONCONTROLTECHNOLOGYVol.23,No.4Aug.,2010·专论与综述·UV/O3/Fe3+1,　2(1.苏州科技学院环境科学与工程学院,江苏苏州　215011;2.苏州科技学院化学与生物工程学院,江苏苏州　215011)　:UV/O3/Fe3+,。,O3、、pH、Fe3+,O3pHFe3+。,:O321.44mg/L,pH10,Fe3+3mg/L,60min,COD80%,99%。。:;;:X703;X791　　　:AStudyonAdvancedTreatmentofPrintingandDyeingWastewaterbyUV/O3/Fe3+ProcessCAOYu-ping1,　LIUYong-jian2(1.DepartmentofEnvironmentalScienceandEngineering,SuzhouUniversityofScienceandTechnology,Suzhou,Jiangsu215011,China;　2.DepartmentofChemicalandBiologicalEngineering,SuzhouUniversityofScienceandTechnology,Suzhou,Jiangsu215011,China)Abstract:AdvancedtreatmentofprintinganddyeingwastewaterbyUV/O3/Fe3+proesswasstudied.Orthogonalarraytestsweredesignedtostudythetreatmentefficienciesunderdifferentconditions.Theresultshowedthat:O3dosagereactiontimepHFe3+dosage.Itwasfoundbysingle-factorteststhatthebesttestconditionswereasfollows:O3dosagewas21.44mg/L,pHwas10,Fe3+dosagewas3mg/Landreactiontimewas60mins.Inthiscondition,theremovalratesofCODcouldreachmorethan80%andchromacouldreach99%.Theindexmetthereuserequirementsofprintinganddyeingwater.Keywords:printinganddyeingwastewater;ozonization;catalyze:2010-05-13＊:(No):(1985—),,,,。　　,,,,[1]。,。UV/O3/Fe3+,,,、。1　1.1　试验试剂、、、、,;。。1.2　试验装置与方法1。,,,、,。1L4,pH。Fe2(SO4)31mg/L2mg/L。,,10mL。,·66　　　·.UV/O3/Fe3+2341　Fig.1　Experimentaldeviceandprocess1-;2-;3-;4-;5-;6-COD,,。2　2.1　影响因素的正交试验UV/O3/Fe3+,COD4,:pH、Fe3+、。,,1。2。1　Table.1　FactorandleveloforthogonalexperimentApHBFe3+/(mg·L-1)C/(mg·L-1)DT/min1313.16302639.2240310613.88602。2,COD,CDBA。COD。:pH6,Fe3+3mg/L,9.22mg/L,60min。2.2　O3投加量的影响,25L/h,,30%、35%、40%、45%、50%,3.16、5.84、9.22、11.2013.88mg/L,Fe3+3mg/L,30W。COD,22　Table.2　ResultoforthogonalexperimentABCDCOD/%1313.163032.812339.224080.5533613.886050.744619.226086.4556313.883060.126663.164026.92710113.884066.8581033.166020.1191069.223071.47K154.70062.03726.61364.437K257.83053.59379.49058.155K352.81049.71059.23752.433F/　　FpH2.14620.0344.46Fe3+130.70020.0274.46O33686.58024.7174.46T591.23720.0424.464410.6608。2,O39.22mg/L,,COD73.65%。O3,COD,。9.22mg/L。2　O3Fig.2　TheaffluenceofO3dosage2.3　反应时间的影响COD,。9.22mg/L,Fe3+3mg/L,30W,10、23、30、40、50、60、74、90min,COD。3。3,,COD;60min,,COD。,60min。20108.UV/O3/Fe3+·67　　　·3　Fig.3　Theaffluenceoftime2.4　pH值的影响Fe3+,,pH[2]。9.22mg/L,Fe3+3mg/L,30W,60min,pH3、6.2(pH)、8、10,COD,4。4　pHFig.4　TheaffluenceofpH4,pH,。,COD。pH,,pH,5,60min,pH6.28.1。pH7,,[3],COD。,,。5　pHFig.5　ChangesinpHafterreaction2.5　Fe3+投加量的影响Fe3+、,。60min,9.22mg/L(40%),pHpH6.2,30W,Fe3+1、2、3、4、6、8mg/LCOD,6。6　Fe3+Fig.6　TheaffluenceofFe3+dosage6,Fe3+3mg/L,COD,80%,COD25.21mg/L,。,Fe3+,,,[3]。,。,,;,3mg/LFe3+。2.6　光强的影响,,。O39.2mg/L,pH,60min,、20W、30W,COD,7。7　Fig.7　Theaffluenceoflightintensity7,CODCOD。,COD,,30W,30W。·68　　　·.UV/O3/Fe3+2342.7　验证,pH=6。,,pH=10。:pH=10,Fe3+3mg/L,9.22mg/L(40%),60min,30W,。3。Fe3+0.3mg/L,(0.3mg/L)。3　Tab.3　ThequalityofrawwaterandoutflowofadvancedtreatmentCOD/(mg·L-1)pH153.26.220025.28.12/%83.2—992.8　对比试验(1)　,:Fe3+、UV/Fe3+、O3、O3/Fe3+、UV/O3、UV/O3/Fe3+,Fe3+3mg/L,UV30W,O340%,pHpH=6.2pH=10,60min,COD。(2)　pH=6.2,,8。8　(pH=6.2)Fig.8　Comparativetest(pH=6.2)8,Fe3+,17.6%,,45.9%(,UV60min≈0,3h,,UV)。,,UV/O3/Fe3+。8:Fe3+UV/Fe3+O3O3/Fe3+UV/O3UV/O3/Fe3+。UV/O3/Fe3+,。pH=10,pH=6.2,9。9　(pH=10)Fig.9　Comparativetest(pH=10)2.9　结论(1):UV/O3/Fe3+,COD,:Fe3+pH。(2)Fe3+COD,Fe3+,COD。Fe3+3mg/L。(3)pH,,,。pH10。,pH,,。(4):pH=10,Fe3+3mg/L,9.22mg/L(40%),60min,30W。COD80%。(5),UV/O3/Fe3+CODFe3+、O3、UV/Fe3+、O3/Fe3+UV/O3。[][1]　　,,　,.[J].,2001,27(6):311-314.[2]　,,,.[J].,2004,24(11):16-19.[3]　　,　,.[M].:,2004.