电化学法处理印染废水高立新

高立新,王　燕,张大全(上海电力学院能源与环境工程学院,上海200090)　:,:Fe-PbO2/-,pH3,6cm,Al2(SO4)30.15mol/L,28mA/cm2,40g,10min。,BOD5/COD0.1261.71,。:印染厂;废水处理;电化学:TS199　　　:A　　　:1000-4017(2010)10-0012-04ElectrochemicallytreatmentoftextilewetprocessingeffluentsGAOLi-xin,WANGYan,ZHANGDa-quan(SchoolofThermalPowerandEnvironmentalEngineering,ShanghaiUniversityofElectricPower,Shanghai200090,China)Abstract:Treatmentofdyeingandfinishingeffluentswascarriedoutwithelectrochemicalmethod.Theoptimumtreatmentwasdeterminedasfollows:takingFe-PbO2/stainlesssteel-activatedcarbonasthree-dimensionalelectrodessystem,pHval-ueofeffluents3,workingelectrodesspace6cm,aluminiumsulfatesolution0.15mol/L,currentdensity28mA/cm2,activa-tedcarbon40g,andelectrolysistime10minutes.BOD5/CODratioofdyeingandfinishingeffluentswasincreasedfrom0.126oforiginto1.71aftertreatmentwithobviouslyimprovedbiodegradability.Keywords:dyeingandfinishing;wastewatertreatment;electrochemistry0　前言,,,,。,,,,、、,[1-3]。(·OH)、,,。,。1936,H.Beer(DSA),(Ti、Zr、Ta、Nb),(),。:2010-02-07:(P1304):(1967-),,,,,,。E-mail:[e-mail]。　　,、BOD5/COD,。1　试验1.1　　(,,,COD1028.49mg/L,BOD5/COD0.2,)。　、、、、、、、、(,)。　M206382(),79HW-1(),CHI660C(),(COD)DRB200(),WQA4810(BOD)(),WFJ7200[()]。1.2　1。1.3　、。12　(2010No.10)　　1-;2-;3-Fe-PbO2/;4-;5-;6-;7-,1h,、,,110℃2h,。,。40g,500mL,8h,,500mL,,,。1.4　Fe-PbO2/[4,5]2cm×2cm×0.5mm320,,600,、,40%NaOH30min,5min;;,。,、,,8cm2,,0.002A/cm2,30minPbO2。/(mol/L)Pb(NO3)2　　　　　　　　　0.35HNO30.1Fe2(SO4)30.25NaF/(mmol/L)40Fe-PbO2/,PbO2,。1.5　500mL,Al2(SO4)3,Fe-PbO2/,,,,,。、、、、pH,。1.6　1.6.1　脱色率(435nm),(1)R:R=A0-AiA0×100%(1):A0———;Ai———。1.6.2　COD值5,10,20,40,60,80mLCOD1000mg/L100mL,,COD50,100,200,400,600,800mg/L1000mg/L。COD,(2),。2　COD2y=2122x-36.21,0.9991。1.6.3　BOD5值50mL,100,,,20℃,20%,5dBODDO,(2)BOD5[6]:BOD5=A(C1-C2)-(B1-B2)(A-1)(2):C1———DO(mg/L);C2———DO(mg/L);B1———DO(mg/L);B2———DO(mg/L);A———。BOD5。2　结果与讨论2.1　,1.5(),1。13　电化学法处理印染废水　(2010No.10)1　ABCD0.2540.2620.0980.225/%38.836.976.445.8　　:A---();B-Fe-PbO2-();C-Fe-PbO2--();D-Fe-PbO2--(),A00.415。1,,:CDAB。Fe-PbO2,。,。Fe-PbO2/;,,。,Fe-PbO2/-(),。Fe-PbO2/-。2.2　2.2.1　pH值1.5,6cm,Al2(SO4)30.15mol/L,28mA/cm2,40g,60min,pH,,3。3　pH3,pH3,,77.1%。pH,。,:H2O2+H+※·OH+H2O·OH,。H+,pH。pH,pH,H+,·OH;,,。pH,,,。,pH3。2.2.2　硫酸铝投加量1.5,pH3,6cm,28mA/cm2,40g,60min,Al2(SO4)3,,4。4　4,Al2(SO4)3。0.15mol/L,76.7%。Al2(SO4)3,,。Al2(SO4)3,[7],。,Al2(SO4)30.15mol/L。2.2.3　电流密度1.5,pH3,6cm,Al2(SO4)30.15mol/L,40g,60min,,,5。5　5,。,,。28mA/cm2,,76.6%;,。,28mA/cm2。14　(2010No.10)　　极板距离1.5,pH3,Al2(SO4)30.15mol/L,28mA/cm2,40g,60min,,,6。6　6,4cm6cm,,77.1%;,。,、,,;,,。,6cm。2.2.5　电解时间1.5,pH3,6cm,Al2(SO4)30.15mol/L,28mA/cm2,40g,,,7。7　7,9min,65.8%。,,,;,。100%,,。,10min。2.3　,,2。2　COD/(mg/L)BOD5/(mg/L)BOD5/COD1028.49129.620.12660.12102.751.71　　2,BOD5/COD0.2,;BOD5/COD0.45,。,。3　结论:Fe-PbO2/-,pH3,6cm,Al2(SO4)30.15mol/L,28mA/cm2,40g,10min。BOD5/COD0.1261.71,。:[1]　,,　,.[J].,2007,38:3337-3339[2]　,　,.PrSnO2/Ti、[J].,2008,29(4):30-33.[3]　LingChenHai,YunZhouLan,LiuQinYing,etal.MechanismstudyonUV-inducedphotodegradationofnonylphenolethoxylatesbyinter-mediateproductsanalysis[J].Chinesechemicalletters,2007,18(4):473-475.[4]　,　.[J].,2007,7(6):1150-1153.[5]　,　,.[J].,2006(21):221-223.[6]　.BOD[J].,1999,27(2):61-62.[7]　,,　,.NiPbO2[J].,2008,28(10):48-51.合理使用资源造福子孙后代··15　电化学法处理印染废水　(2010No.10)