电解预处理UASBCASS工艺处理糠醛废水栾富波

1　9环境工程学报Vol.1,No.920079ChineseJournalofEnvironmentalEngineeringSep.2007-UASB-CASS　　　　　　栾富波　　　　　　　　　李善评　赵玉晓　王旭东(,200092)　　(,250100)　　-UASB-CASS,,COD;:0.3A,4h,30mm。COD20.6%,38.1%。UASB-CASS,COD150mg/L,《》(GB8978-1996)。　　　　　X703.1　　　A　　　1673-9108(2007)09-0067-05Treatmentoffurfuralwastewaterwithelectrolyticpre-treatment-UASB-CASSLuanFubo1　LiShanping2　ZhaoYuxiao2　WangXudong2(1.StateKeyLaboratoryofPollutionControlandResourcesReuse,TongjiUniversity,Shanghai200092;2.SchoolofEnvironmentalScienceandEngineering,ShandongUniversity,Jinan250100)Abstract　Thetreatmentoffurfuralwastewaterwasstudiedinthispaper.ThemaininfluencingfactorsofpretreatmentwerecurrentdensityandelectrolytictimewhileelectrodedistancehadlittleeffectonCODremovalrate.Thebestparameterofelectrolyticpre-treatmentwas:currentintensity0.3A,electrolytictime4handelec-trodedistance30mm.TheCODremovalratewas20.6%andthebiodegradabilityofthewastewaterincreased38.1%underthiscondition.AddedlatterprocessofUASB-CASS,theCODconcentraionofeffluentwasbelow150mg/LwhichcanmeetsecondorderofComprehensiveSewageDischargeStandards(GB8978-1996).Keywords　furfuralwastewater;electrolyticpre-treatment;orthogonalexperiment;operatingparameters:2007-03-21;:2007-06-28:(1980～),,,。E-mail:[e-mail]　　,、,、、,,。,90%,,,,“”。,、,。、、、、,,,,。,、Fe(OH)3[1～6],、[7];(up-flowanaerobicsludgeblanket,UASB)-(cyclicactivatedsludgesystem,CASS),[8,9]。-UASB-CASS,,UASB-CASS,《》(GB8978-1996),。1　,1。　　11　Table1　QualityoffurfuralwastewaterpH1.804.60COD(mg/L)152402352016080BOD5(mg/L)500284085308SS(mg/L)45105751,,,,,、,,pH,。2　-UASB-CASS,(8h),,,。,-UASB-CASS。3　3.1　3.1.1　试验装置,。10、20、3040V4,0～50A;,1800mL,1650mL。　　3.1.2　极板的选择、,。,Fenton,Fe(OH)3,,。3.1.3　电解预处理因素选择、,。3.1.4　电解预处理因素对电解效果影响试验(1)COD　　COD1(30mm)。1　CODFig.1　EffectsofcurrentdensityandelectrolytictimeonCODremovalrate1:①COD,COD,0.4A,COD。②0.1～0.3ACOD,0.4A0.5A,0.1～0.3A6h。,、,。Fe(OH)3,,。Fe(OH)3,,,。COD,,[10]。,0.2、0.30.4A,3、45h。(2)CODCOD2(0.3A,3h)。689:-UASB-CASS2　CODFig.2　EffectofelectrodedistanceonCODremovalrate2,、,,COD,。、,,20、3040mm3。3.1.5　正交试验[L9(33)],2。2　Table2　FactorsandgradesoforthogonalexperimentA(h)B(A)C(mm)130.220240.330350.4403。3　Table3　DataanalysisoforthogonalexperimentABCCOD(%)111114.20212218.76313320.19421216.42522320.37623121.62731318.04832121.26933221.65K153.1548.6657.08K258.4160.3956.83K360.9563.4658.60R7.8014.801.773,RBRARC,,,。3,3～5hCODCOD,3～5h,,COD。3.1.6　可生化性校验3:(1#)0.4A,20mm,4h;(2#)0.3A,30mm,4h;(3#)0.3A,20mm,5h,,4。4　Table4　ChangeofbiodegradabilityCOD(mg/L)BOD5(mg/L)BOD5/COD1622553750.3311#1273256400.4432#1287858850.4573#1278052650.4124,3COD,BOD5/COD。:,[11]。,,COD、,。,0.3A、4h、30mm。COD20.6%,38.1%。3.2　(UASB)60、7284h3,5。6915　(UASB)Table5　DataofUASBtreatmentprocess(h)COD(mg/L)COD(mg/L)COD(%)12657290077.0912960314875.716012748295576.8213080358072.6312767267679.0412815177986.1212764182485.717213125217083.4712780169086.7812760172186.5112852193984.9112913171086.768412775171686.5712544161987.1012780156887.735,,COD。60hCOD72h84h,84h72h,,72h,COD,72h。3.3　(CASS)4h6h,5∶16∶1,6。6,,COD。CASS,,,;,,,,COD,,COD。,6h、6∶1。　　　6　(CASS)Table6　DataofCASStreatmentprocess(h)COD(mg/L)COD(mg/L)COD(%)178847873.27179244075.4545:1176445874.04180550771.91196858970.07185042377.14177536379.5546:1192443477.44181238678.70177232781.55184628284.72170923886.0765:1178225485.75165018288.97175927184.59191413293.10182210894.0766:117638495.24174911993.20179811193.836,6h、6∶1,COD150mg/L,《》(GB8978-1996)。4　　(1),。(2):0.3A,4h,30mm。(3),、:-UASB-CASS。709:-UASB-CASS[1]Ch.Comninellis.Electrocatalysisintheelectrochemicalconversion/combustionoforganicpollutantsforwastewatertreatment.ElectrochimicaActa,1994,39(11,12):1857～1862[2]SimondO.,SchallerV.,ComninellisCH.Theoreticalmodelfortheanodeoxidationoforganicsonmetaloxideelec-trodes.ElectrochimicaActa,1997,42(13～14):2009～2012[3]Lizcano-ValbuenaW.H.,PaganinV.A.,GonzalezE.R.Methanolelectro-oxidationongasdiffusionelectrodespre-paredeithPt-Ru/Ccatalysts.ElectrochimicaActa,2002,47(22,23):3715～3722[4]BrillasE.,CasadoJ.Anilinedegradationbyelectro-fentonandperoxi-coagulationprocessesusingaflowreactorforwastewatertreatment.Chemosphere,2002,47(3):241～248[5]BoyeB.,BrillasE.,DiengM.Electrochemicaldegradationoftheherbicide4-chloro-2-methylphenoxyaceticacidina-queousmediumbyperoxi-coagulationandphotoperoxi-co-agulation.JournalofElectroanalyticalChemistry,2003,540(2):25～34[6]BrillasE.,BoyeB.,BanosM.A.,etal.Electrochemicaldegradationofchlorophenoxyandchlorobenzoicherbicidesinacidicaqueousmediumbytheperoxi-coagulationmeth-od.Chemosphere,2003,51(4):227～235[7],,..,2001,17(3):263～271[8],,.UASB-CASSPBT、.,2004,24:248～251[9],,.UASB-CASS.,2005,31(11):65～66[10],,..,1998,15(3):63～66[11],,,..:,200271