Fenton氧化技术深度处理棉浆黑液的试验研究赵丽红

整理文档很辛苦,赏杯茶钱您下走!

免费阅读已结束,点击下载阅读编辑剩下 ...

阅读已结束,您可以下载文档离线阅读编辑

资源描述

AdvancedtreatmentofcottonpulpblackliquorbyFentonoxidationtechniqueZhaoLihong1,JinRuofei2,SunHongjun1,GaoYanjiao1(1.CollegeofCivilEngineeringandArchitecture,LiaoningUniversityofTechnology,Jinzhou121001,China;2.SchoolofEnvironmentalandBiologicalScienceandTechnology,DalianUniversityofTechnology,Dalian116024,China)Fenton1,2,1,1(1.,121001;2.,116024)[]Fenton,,pH、FeSO4、H2O2COD,。,:pH=7、FeSO480mmol/L、H2O20.15mol/L、40min,COD98%,COD45mg/L,(COD100mg/L)。[]Fenton;;;[]X703.1[]A[]1005-829X(2010)06-0048-04Abstract:Fentonoxidationhasbeeninvestigatedinordertoeffectivelytreatcottonpulpblackliquorinchemicalfiberfactories.TheeffectsofpH,ferroussulfatedosage,hydrogenperoxidedosageandreactingtimeonCODre-movalratearestudied.ThemechanismsofinfluentialfactorsontreatingcottonpulpblackliquorbyFentonreagentarepreliminarilyanalyzed.Theoptimalconditionsdeterminedbysingle-factorandorthogonalexperimentsareasfollows:initialpH=7.0,FeSO4dosage80mmol/L,H2O2dosage0.15mol/L,andreactingtime40min.Undertheoptimalconditions,theultimateCODremovalrateis98%.TheCODofthetreatedblackliquoris45mg/L,whichreachestheFirstDischargeStandardofNationalChemicalFiberWastewater(COD100mg/L).Keywords:Fentonoxidation;cottonpulpblackliquor;wastewatertreatment;advancedtreatment[](50808029)Fenton,、、、、、。,Fenton、、、、、〔1-2〕。Fenton、,,,〔3〕。B1〔4〕,Fenton。,,。11.1B1。COD2250mg/L,、、。、,。1.2100mLB11mol/LH2SO4pH,Fenton,30620106IndustrialWaterTreatmentVol.30No.6Jun.,201048——2010-06,30(6)COD,COD。1。22.1H2O2H2O2Qth〔5〕:1mg/LCODO21mg/L,2molH2O21molO2,1mg/LCODH2O217/8=2.125mg/L,30%H2O21000g/L,H2O2Qth=0.0021mL/L。COD2250mg/L,H2O2Qth4.72mL/L。H2O2Qth,,。2.2FentonFe2+H2O2HO·,HO·,〔6〕、〔7〕,,H2O2、Fe2+、pH44。1。:(1)R,Fenton:BCAD,Fe2+pHH2O2。(2)Kii,,1A1B4C1D4,pH=5.0,FeSO480mmol/L,30%0.10mol/L,40min。2.3FentonCOD(1)pHCOD。Fe2+pH,pHHO·,Fe2+,;pH,H+Fe3+Fe2+,Fe2+,Fenton。100mLFeSO480mmol/L,30%0.10mol/L,40min,pH,、pH,2。COD,2。2,pH=7.0。2,FeSO4,pH。pH=7.0FentonpH5.13,pH3.41,,Fenton,pHFe2+、Fe3+,Fenton。1AH2O2/(mol·L-1)BFeSO4·7H2O/(mmol·L-1)CpHD/minCOD/(mg·L-1)COD/%10.101051011474920.102062011255030.1040730909640.10808402928750.161063018221960.16205403378570.16408107876580.16807201359490.2410740180020100.2420830171024110.244052024889120.248061024789130.3210820184516140.3220710168725150.324064015793160.328053038283K170.5026.0076.5057.00K265.7546.0062.7562.25K355.5085.7558.7555.50K454.2588.2548.0071.25R16.2562.2528.5015.752FentonpHpH4.05.06.07.08.09.0pH2.352.503.215.135.465.79pH2.302.432.933.414.004.68,:Fenton49——2010-06,30(6)FentonpH3.5,FeSO4,FeSO4pH。pH,pH,pH=7.0,pH3.0~4.0,。(2)FeSO4COD。100mL,pH=7.0,0.10mol/L30%H2O2,FeSO4,40min,3。3,FeSO480mmol/L,FeSO4COD;FeSO480mmol/L,FeSO4COD。Fe2+,Fe2+,H2O2;Fe2+;Fe2+H2O2,Fe3+,,FeSO4,COD。(3)H2O2COD。100mLpH7.0,FeSO480mmol/L,H2O2,40min,4。4,H2O2,COD,H2O20.15mol/L。H2O2,H2O2,HO·,COD;H2O2,H2O2,Fe2+Fe3+,Fe3+,H2O2HO·,H2O2COD。(4)COD。Fenton,HO·,,,〔9〕。Fenton,HO·。pH7.0,80mmol/LFeSO40.15mol/LH2O2,,100mL,5。5,COD,40min,,:HO·,40minHO·,,,COD。40min,COD45mg/L,,。3(1)FentonH2O2、Fe2+、pH,:pH=7.0,FeSO480mmol/L,H2O20.15mol/L,40min。(2),COD98%,COD45mg/L,50——2010-06,30(6)(COD100mg/L)。[][1]LunarL,SiciliaD,RubioS,etal.IdentificationofmetaldegradationproductsunderFentonreagenttreatmentusingliquidchromatagraphy-massspectrometer[J].WaterRes.,2000,34(13):3400-3412.[2]DuránA,MonteagudoJM,AmoresE.Solarphoto-Fentondegradationofreactiveblue4inaCPCreactor[J].AppliedCatalysisB:Environ-mental,2008,80(1/2):42-50.[3],,,.Fenton[J].,2008,27(5):660-665.[4]ZhaoLihong,ZhouJiti,LüHong,etal.DecolorizationofcottonpulpblackliquorbyPleurotusostreatusinabubble-columnreac-tor[J].BulletinofEnvironmentalContaminationandToxicity,2008,80(1):44-48.[5]BishopDF.Hydrogenperoxidecatalyticoxidationofrefractoryor-ganicsinmunicipalwastewater[J].ProcessDesignandDevelopment,1968,7(1):110-117.[6],,,.Fenton[J].,2000,21(5):93-96.[7]KangYW,HwangKY.Effectsofreactionconditionsontheoxida-tionefficiencyintheFentonprocess[J].WaterRes.,2000,34(10):2786-2790.[](1974—),2008,,。:18904162944;E-mail:zhaolh_2003@sina.com。[]2010-02-05()———,.CN101456930···············································,。。60~120。6.0×10-5~1×10-4。150~300℃10~60min,,60~200,10%。,:(1),,。(2),,。(3)BOD。(4),。———,.CN101428881,:50%~60%,10%~20%、20%~30%、3%~5%,23%~28%;15℃,,0.01%,0.01%,30~50min,4h、,。30~50min,4h、,。,,,。CTMP。,1000~1300℃2~3h;1g14~18mL,,1g0.4~0.7mL,FeCl3·6H2O,55%~65%,1~2h,24h,。CTMPCTMP,60mL/L,18700CU80CU,。CTMP———,,,.CN101428885,,1∶5~5∶1;20~40℃3h,1h90℃,,、,n()∶n()1∶8~8∶1,95~105℃2h;1h80℃,70~80℃2h;,100℃,95~105℃1h90~95℃1h;1h,40℃,2h。、、、、。()———,.CN101538343,:Fenton51——

1 / 4
下载文档,编辑使用

©2015-2020 m.777doc.com 三七文档.

备案号:鲁ICP备2024069028号-1 客服联系 QQ:2149211541

×
保存成功