电化学氧化超滤组合工艺在炼油厂水处理中的应用

:20051129;:20060210:(1979-),,,,:(:2004BA313B17)1,2,1,1(1.,130021;2.),CODNH3NCODNH3NNaCl500mg/L10mA/cm218mL/min,40min,COD20mg/L,NH3N3.02mg/L,2.18kWh/t,,:1,,,,CODBOD(NH3N),[1],,COD30mg/L,5mg/L,,,,,[2]COD,,,,COD,,,,,,,[3]COD[4,5],,COD,pH,,,21,,pH,,,10mg/L,,,,20067PETROLEUMPROCESSINGANDPETROCHEMICALS37712,6!6cm2,Ti/RuTiSn[6],Ti,,COD,COD,,,COD21∀;2∀;3∀;4∀;5∀;6∀/(3),,,,,31∀;2∀;3∀;4∀;5∀;6∀;7∀;8∀;9∀;10∀(),LZB3,NH3N,COD751COD,,721E,pHPHS25pH,DDS11C,,,,11(COD)/mg#L-1∃37.5(NH3N)/mg#L-1∃47.70/NTU∃28.45/S#cm-1%900(Cl-)/mg#L-1∃28.24:W=IUt:W,kWh;I,A;U,V;t,h33.1(),,,,NH3N,COD,,,pH,,,COD,,[7],,15mg/L22,,,47.70mg/L12.08mg/L,,COD2(COD)/mg#L-1∃37.5∃35.0∃35.0(NH3N)/mg#L-1∃47.70∃12.91∃12.08/NTU∃28.45∃28.45∃11.08/S#cm-1%900%900%900(Cl-)/mg#L-1∃28.24∃28.24∃28.24:3.23.2.1CODCOD637.3Ti/RuTiSn,COD,,COD,,COD,20mA/cm2,COD7mg/L,,,,,COD,6mL/min,COD5mg/L3COD(NaCl)/mg#L-1/mA#cm-2/mL#min-1(COD)/mg#L-1100101033200101030300101028400101024500101015500510335002010750010655001015205001020303.2.2NH3N,,,,,(Cl2+HOCl+ClO-),/[8]456[9]4,,,,,500mg/L,50min5,,,,4,:1∀100mg/L,2∀200mg/L,3∀300m/L,4∀400mg/L,5∀500mg/L;:10mA/cm2;:12mL/min5,:1∀5mA/cm2,2∀10mA/cm2,3∀20mA/cm2;:500mg/L;:12mL/min,6,12mL/min6mL/min,18mL/min,(6mL/min),,,,,,6,:1∀6mL/min,2∀12mL/min,3∀18mL/min,4∀24mL/min;:10mA/cm2;:500mg/L64200637;,,,,3.2.3CODNH3N4,NaCl500mg/L,10mA/cm2,CODNH3N4,12mL/min,30min,COD20mg/L,NH3N,3.3kWh/t;18mL/min,40min,COD20mg/L,NH3N3.02mg/L,2.18kWh/t,4CODNH3N/mL#min-1/min(COD)/mg#L-1(NH3N)/mg#L-1/kWh#t-16402006.68212302003.31840203.022.1824100304.811.643.3CODNH3N,,,11.08NTU,,0.53NTU,55,COD14mg/L,NH3N1mg/L5(COD)/mg#L-1151416(NH3N)/mg#L-1111/NTU11.080.5360.25:1.0MPa,18L/h16L/h4(1),,,COD37.5mg/L14mg/L,NH3N47.70mg/L1mg/L,28.45NTU0.53NTU,COD30mg/L,NH3N5mg/L,1NTU(2),;COD;1,,..,2002,28(2):52~562,.COD.,2001,3:1~53KJttner,UGalla,HSchmieder.Electrochemicalapproachestoenvironmentalproblemsintheprocessindustry.Electrochim.Acta,2000,45:2575~25944,,.COD.,2004,35(6):31~345,,..,2004,24(4):36~386,,.RuTiSn/Ti.,2003,3:149~1507..:,2002.196~2208,,.Ti/PbO2.(),2005,43(3):358~3629,,..,2005,24(2):146~149STUDYONTHEREFININGWASTEWATERTREATMENTOFCOMBINEDELECTROCHEMICALOXIDATIONANDULTRAFILTRATIONPROCESSXuHong1,LiuDejia2,JiangMei1,LinHaibo1(1.DepartmentofPhysicalChemistry,CollegeofChemistry,JilinUniversity,Changchun130021;2.PetroChinaQianguoPetrochemicalCompany)AbstractAprocessofcombiningelectrochemicaloxidationandultrafiltrationfortreatingthe657.refiningsecondaryeffluentwasstudiedandtheoveralltreatingefficiencyofthecombinedprocesswereassessedintermsofCOD,NH3Nandturbidityreduction.ItwasconcludedthattheelectrochemicaloxidationmethodcouldeffectivelydegradedtheCODandNH3Ninthewastewater.Thechlorideionconcentration,currentdensityandflowrateaffectedtheremovalofCODandNH3Nintheeffluentgreatly.Thetestresultsshowedthatwithasodiumchlorideconcentrationof500mg/L,acurrentdensityof10mA/cm2andaflowrateof18mL/min,afterelectrolysisfor40minwithanelectricityconsumptionof2.18kWh/t,theCODandNH3Noftheeffluentwerereducedto20mg/Land3.02mg/L,respectively,whichmettherequirementsofwastewaterreuse.Treatingrefiningsecondaryeffluentwithsaidcombinedprocessprovidedapromisingfutureforreusingthewastewaterinrefinery.KeyWords:electrochemistry;oxidationprocess;ultrafiltration;biologicaltreatment66200637