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303Vol.30,No.3 201006Journal of Hangzhou Dianzi UniversityJun.2010 姚伟英,陈建军(杭州电子科技大学机械工程学院,浙江杭州310018):2009-11-04:(1989-),,,,.:,。-,pH=5、20min、FeSO41125mg·L-1、H2O212.5mL·L-1,COD616mg·L-1,COD95.2%。-,pH=6、500mg·L-1、20min、H2O212.5mL·L-1,COD27911mg·L-1,46%。,。:;;:X703 :A :1001-9146(2010)03-0071-040 、、、,[1,2]。。、,COD10000mg·L-1,,COD。,。。,,、、、、、[3]。、、、。,[4]。,。1 1.1 :MDS—6()、KQ2200B()、AL204(-)、SevenMultiple(-)。:30%、、、、、、。:,1。DOI:10.13954/j.cnki.hdu.2010.03.006表1 印染废水原水水质情况pHCOD(mg/L)9.20012810,,10.03952215,, 1.2 COD。:(1)6mL10mL,pH(Fenton),,20min30min,COD;(2)6mL10mL,pH15%,,20min30min,COD。2 2.1 2.1.1 pH对调浆废水处理效果的影响6mL,pH,1000mg·L-1FeSO4,12.5mL·L-1H2O2,20min,30min,,COD,1。图1 pH对调浆废水处理效果的影响1,pH=5;pH5,CODpH;pH5,CODpH。,pH5。,Fenton3~5[5,6],Fenton。Fenton[7]: Fe2++H2O2→Fe3++OH-+OH·(1) OH·+Fe2+→Fe3++OH-(2) Fe3++H2O2→Fe2++HO2·+H+(3) Fe3++HO2·→Fe2++O2·+H+(4),1,,。72 2010pH3,Fe2+,。2.1.2 调浆废水最佳条件的确定,[8],20min,。2、3。表2 因素水平随机化123pH2.03~45FeSO4/(mg·L-1)87510001125H2O2/(mL·L-1)12.51517.5表3 正交试验表pHFeSO4(mg·L-1)H2O2(mL·L-1)COD(mg·L-1)COD(%)12112515.0238981.42287517.5153188.032100012.5153188.043~487515.0125890.253~4100017.5102492.063~4112512.5100492.275100015.0129089.985112517.561695.29587512.5119690.7 3,pH=5、FeSO41125mg·L-1、H2O212.5mL·L-1、20min。,OH·,,COD616mg·L-1,95.2%。,pHFeSO4H2O2。2.2 ,Fenton、,,4。表4 碱法前处理废水反应条件和实验结果(mg·L-1)H2O2(mL·L-1)pH(min)COD(mg·L-1)COD(%)1125017.510202844345.52100015.010203072141.2375012.510203398734.9450012.510203094940.7550012.56202791146.5650012.55202867145.1 4,pH,1250mg·L-1,H2O217.5mL·L-1,COD45.5%。pH,,。,pH=6、500mg·L-1、H2O212.5mL·L-1、20min,COD46%。733 : 3 ,。:pH=5,FeSO41125mg·L-1,H2O212.5mL·L-1,20min,,COD616mg·L-1,95.2%;:pH=6,500mg·L-1,H2O212.5mL·L-1,20min,COD27911mg·L-1,46%。《》,,,,5.6/t,15.6%,3.91/t,,207.9/90.27/。,,,,、。[1] ,,,.[J].,2009,41(10):47-51.[2] .[D].:,2008.[3] .[D].:,2008.[4] ,,,.[J].,2007,19(2):47-49.[5] ,,,.Fenton[J].,2000,21(5):96-99.[6] .-Fenton[D].:,2007.[7] ,,,.Fenton[J].,2002,22(3):19-21.[8] ,,.Fenton[J].,2009,28(2):47-50.ExperimentalStudyonDualPre-treatmentofHighConcentrationofDyeingWastewaterYAOWei-ying,CHENJian-jun(SchoolofMechanicalEngineering,HangzhouDianziUniversity,HangzhouZhejiang310018,China)Abstract:Dualpre-treatmentoftwokindsofdyeingwastewaterdiscardedfromdifferentprocesseswasstudiedinthispaper.Theoptimumconditionsandtheireffectivenessweredeterminedrespectively.Forpulpingwastewater,usingultrasonicwave-fentonreagentuniontreatment,theproperconditionwas:pHvaluewas5,theultrasoundtimewas20min,thedosageofFeSO4and30%H2O2were1125mg·L-1and12.5mL·L-1,respectively.Un-derthisconditions,theconcentrationofCODreachedto616mg·L-1,andCODremovalratiowas95.2%.Foral-kalinepretreatmentwastewater,usingultrasonicwave-coagulationsedimentationtreatment,thefeasibleconditionwas:pHwas5,theultrasoundtimewas20min,andthedosageofKAl(SO4)2·12H2Oand30%H2O2were500mg·L-1and12.5mL·L-1,respectively.Undertheconditions,theconcentrationofCODreached27911mg·L-1,andCODremovalratiowas46%.Bythisdualpretreatment,theconcentrationofmixedwastewaterdis-chargedintothepipescanbesignificantlylower.Keywords:dual;pretreatment;dyeingwastewater74 2010
本文标题:高浓印染废水分质预处理实验研究姚伟英
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