对氯苯酚废水的电化学降解研究

510Vol．5No．10201110ChineseJournalofEnvironmentalEngineeringOct．2011110168PbO2、、pH。PbO2pH。PbO210V0.04mol/L0.2m3/hpH3100%。。X703A1673-9108201110-2279-04Studyondegradationofp-chlorphenolwastewaterbyelectrochemicalmethodHuJunshengHaoLingtingLiYueSchoolofMunicipal＆EnvironmentalEngineeringShenyangJianzhuUniversityShenyang110168ChinaAbstractTheeffectsofaerationrateappliedvoltagesupportingelectrolyteconcentrationandtheinitialpHvalueonelectrochemicaloxidationdegradationofp-chlorphenolwerestudiedviathestaticexperimentwhichusedstainlesssteelbasedPbO2electrodemanufacturedbyelectricaldepositionmethodandsimulatedwastewaterofp-chlor-phenolsolution．TheresultsshowedthattheexperimentmanufacturedPbO2electrodehashighercatalyticactivityandp-chlorphenolcanbeeffectivelydegradated．Loweroperatingvoltagehelpstoreducetheprocessingcost．Theremovalrateofp-chlorphenolfirstincreasedandthendecreasedwiththeincreasingofelectrolytesconcentrationsandaerationratestheinitialpHvaluehasagreatinfluenceonthetreatmenteffectofp-chlorphenol．UsingPbO2electrodesuit-ableexperimentalconditionsarethedecompositionvoltageof10Vtheelectrolyteconcentrationof0．04mol/Ltheaerationrateof0．2m3/LandtheinitialpHvalueof3．0．Undertheabovereactionconditionstheremovalrateofp-chlorphenoliscloseto100%．Thismethodhasagoodapplicationprospectasithasapromisingapplicabilityfortreatingacidphenol-containingwastewaterdirectlyanddoesnotneedpretreatmentsuchasdilutionandneutraliza-tionevenifthewastewaterhashighphenolconcentrationsandcertainsaltcontent．Keywordselectrochemicaloxidationp-chlorphenoldegradation2008-K7-252010－06－012010－07－151968～。[e-mail]、、、、。。、、。。PbO2、12。PbO2PbO23-7。PbO2。5PbO2、。11.1×=10cm×15cmPbO2Φ9cm×6cmΦ2cm×6cmWYJ-302B2、、UV9100ZD-2。、、4-、、、、。1．2PbO21．2．19cm、6cm40%NaOH30minHCl5min。1．2．2PbO2。α-PbO230minPbO5g/LNaOH30g/L10mA/cm240℃β-PbO23hPbNO32116g/L0.1mol/LHNO3NaF1.26g/L15mA/cm270℃。F－F－PbO2F－PbO2PbO2、8。1．3PbO2100mg/LNa2SO4PbO23.5cm、、pH。30min2.5h。4-。100mg/L10V0.04mol/L0.2m3/h。22.11。。1Fig．1Effectofappliedvoltageonremovalrateofp-chlorphenol7～11V80.34%、83.25%、88.62%、93.91%94.49%。。。。10V。2．22。20.04mol/L83.74%、84.58%、85.87%88.15%0.04mol/L93.91%92.72%92.36%。。。0822102Fig．2Effectofelectrolytesconcentrationonremovalrateofp-chlorphenol。。9。0.04mol/L。2．33。3Fig．3Effectofaerationonremovalrateofp-chlorphenol。30.1～0.4m3/h84.82%、85.16%、93.91%、89.24%、85.27%、85.76%86.55%0.2m3/h。。2．4pH4pHpH。4pHFig．4EffectofinitialpHonremovalrateofp-chlorphenolpH3.5、4.55.589.27%、85.80%82.61%pH399.52%pH22.590.62%94.03%。3pH。Quiroz10。pH1112。pHη=ε－ε0=0．961－0．059pH1ηεε0。pH。pH。pH。pH1822513。。PbO2。14PbO2/Ti、、Pt。PbO2/Ti0.5h0.5h。PbO2/Ti3h96.73%。。。PbO2/Ti。CO2PbO2/Ti。31PbO2。2。。pH。3PbO210V0.04mol/L0.2m3/hpH3100%。。1．．2000263130-135ZhouJunJinQiting．Progressinelectrolysisinwastewatertreatment．TechnologyofWaterTreatment2000263130-135inChinese2．．200675124-128XuYingZhuChengzhuDongWenboetal．Researchonthetreatmentoforganicdyeingwastewaterbyanovelleaddi-oxideelectrode．TechniquesandEquipmentforEnvironmentalPollutionControl200675124-128inChinese3．PbO2．2002192193-195WangFengYuBin．PreparationofanovelPbO2elec-trode．ChineseJournalofAppliedChemistry2002192193-195inChinese4FengdJ．JohnsonC．Electrocatalysisofanodicoxygen-transferreactionAlphaleaddioxideelectrodepositedonstainlesssteelsubstrates．JournalofAppliedElectrochemis-try1990201116-1245．Ti/SnO2+Sb2O3+MnO2/PbO2．2001161183-187LiangZhenhaiSunYanping．PropertiesofTi/SnO2+Sb2O3+MnO2/PbO2anode．JournalofInorganicMateri-als2001161183-187inChinese6．Ti/RuO2B．200430313-16YanHeYuXiujuanWangHuietal．Studyondecolori-zationofrhodamineBbyelectrocatalyticoxidationwithTi/RuO2electrodes．EnvironmentalProtectionScience200430313-16inChinese7KimS．Y．KimT．H．Electrochemicaloxidationofpoly-vinylalcoholusingaRuO2/Tianode．Desalination2003155149-578．．200322325-30XieTianWangBin．Reviewonpreparationmethodofleaddioxideelectrode．JournalofChengduUniversityNaturalScience200322325-30inChinese9．．2006ZhangHaibo．PreparationoflanthanondopedPbO2/Tie-lectrodeandperformanceofelectrocatalyticnitrobenzene．HarbinMaster’sDegreeThesisofHarbinInstituteofTechnology2006inChinese10QuirozM．A．ReynaS．Electrocatalytixoxidationofp-ni-tro-phenolfromaqueoussoluteionsatPb/PbO2anodes．Ap-pliedCatalysisBEnvironmental2005593-4259-26611FengJianren．Electrocatalysisofanodicoxygen-transferrea-ctionsTheelectrochemicalincinerationofbenzoqui-none．Electrochem．Soc．1995142113626-363212MohanmmedO．Azzam．Anodicdestructionof4-chlorophe-nolsolution．HazardousMaterials200075199-11313ComnindllisC．H．PulgarinC．Anodicoxidationofphe-nolforwastewatertreatment．Appl．Electrochem．1991218703-70814．．2008LiuYan．Theinfluencefactorsofdegradationofp-chlor-phenoldyelectrochemicalmethod．HarbinMaster’sDe-greeThesisofHeilongjiangUniversity2008inChinese2822