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200、、、。“”。AOPs、、。。、。、4-、。11.1InSnO2/Ti1.1.1。40%NaOH[1]2h。11VV2h。。10%15min10min。1.1.2-InSnO2/TiSnCl2·2H2O、InCl3·4H2Oxx=0、0.01、0.03、0.05、0.1、0.2、40mL5mL。60℃1h0.5～1d。。90℃30min3h400℃、425℃、450℃、500℃、550℃、600℃。1.24-。InSnO2/Ti6cm×1cm。Na2SO42cm。4-40mg·L-125℃。InSnO2/Ti4-123311.3200322.3200153.322100InSnO2/Ti4-。、、pH4-。、。4-TQ031.7X703.1A1000-3770(2009)09-052-042009-06-09DZ50551977－13306517744E-mailljh-yll@sohu.com13336060505E-mailxwhuang@zjut.edu.cn35920099TECHNOLOGYOFWATERTREATMENTVol.35No.9Sep.,2009521.3JASCO200-PLUSC18。VV=60400.5mL·min-120μL。UV285nm。22.1Ti/SnO2(In)4-1。1550℃、0.050.5h4-。2.24-2.2.14-4-40mg·L-10.03mol·L-1Na2SO42cm120min4-。24-。210、20、30、40、50mA·m-22h4-92.55%、96.45%、95.25%、87.22%、84.24%10mA·m-220mA·m-24-。20mA·m-230mA·m-24-。2.2.24-Na2SO4。20mA·m-24-。4-Na2SO4120min0.01、0.03、0.05、0.07、0.09mol·L-192.55%、96.45%、94.5%、87.7%、78.6%。30.09mol·L-10.07mol·L-10.05mol·L-10.01mol·L-10.03mol·L-1。Na2SO4。Na2SO4Na2SO40.01mol·L-1-0.572V、35℃Na2SO40.03mol·L-1-0.454V、30℃。。Na2SO4Na+、SO42-p-NPNa2SO4。020406080100120020406080100/%/min 3Fig.3Effectofelectrolyteconcentrationratioondegradationefficiency0.000.050.100.150.200510152025303540/% 1、Fig.1EffectofSn/Inratioondegradationefficiency020406080100120020406080100/%/min 2Fig.2EffectofcurrentdensityondegradationefficiencyInSnO2/Ti4-530.03～0.05mol·L-10.03mol·L-1。2.2.3pH4-Na2SO40.03mol·L-1H2SO4NaOHpH2、4、7、10、12pH7H2SO4NaOHpH6.34、H2SO4NaOHpH=7pH4-。4pH2、4、7、10、124-pH2、44-pH24-pH4120min98.19%97.73%pH74-120min96.45%pH10、124-120min90.15%85.51%。pH4-。44-。4-。pH。。。pH4～6。pH。2.34-20mA·m-2Na2SO40.03mol·L-14-40mg·L-14-。4-。4-4-18.82min、5.02min4-IC、、。·OH3、。·OHCO2。4-[2-7]1,2,4-4-3,4-3,4,5-。4-。IC4-、、。4-。3550℃、0.0520mA·m-2、Na2SO40.03mol·L-1、pH4-。4-4pHFig.4EffectofpHondegradationefficiency020406080100120020406080100/%/min 35954STUDYONTHECHARACTERISTICOFBIOLOGICALNITROGENREMOVALINSBBRTREATINGLANDFILLLEACHATEWITHHIGHCONCENTRATEDNITROGENHaoHuofan1,HuXiaoming2（1.SchoolofEnviromentalandMunicipalEngineering,LanzhouJiaotongUniniversity,Lanzhou730070,China2.GansuEnvironmentalEngineeringAssessmentCenter,Lanzhou730030,China）Abstract:TheCOD,NH4+-NandTNremovalcharacteristicswereinvestigatedatDOwas0.45mg·L-1and1.19mg·L-1,respectivelyinasequencingbatchbiofilmreactor(SBBR)treatinglandfillleachate;andtheeffectoffreeammonia(FA)andDOontypeofsimultaneousnitrificationanddenitrification(SND)wasstudied.TheexperimentalresultsclearlyshowedthattheCODandammoniawasremovedsimultaneouslystablyandefficiently,andwhenfeedCODwasrangefrom122mg·L-1to2385mg·L-1,effluentCODconcentrationwasbetween23mg·L-1and390mg·L-1,theaverageremovalefficiencywas86.8%,themaximumCODremovalratewas20.44kgCOD·m-2carrier·d-1.andwhentheinfluentammonianitrogen(NH4+-N)waschangedfrom40mg·L-1to396.5mg·L-1,theeffluentNH4+-Nwasvariedfrom0mg·L-1to41.2mg·L-1,themaximumNH4+-Nremovalratewas2.87kgN·m-2carrier·d-1.Theobvioussimultaneousnitrificationanddenitrification(SND)wasobservedintheSBBR,theaverageremovalefficiencyofTNwas73.8%atDO=0.45mg·L-1and30%atDO=1.19mg·L-1,respectively.Whenfreeammoniawaschangedfrom1.5to11.6mg·L-1,theSNDvianitratetheSNDvianitritewerecoexistedinthesystem,andFAincreasedfrom18.6mg·L-1to56mg·L-1,thesteadySNDvianitritewasachieved,soitwasconcludedthatFAwasthemaincontrollingfactorwhichinfluencedthetypeofSND,andDOshouldpromotedeffectfortheconversionofSNDvianitritetoSNDvianitrate.Keywords：landfillleachate;sequencingbatchbiofilmreactor;simultaneousnitrificationanddenitrification;freeammonia;lowdissolvedoxygenSTUDYONELECTRO-CATALYTICOXIDATIONOFPARANITROPHENOLBYIN-DOPEDSnO2/TIPROCESSLIJionghui1,2,PanWeigang3，ZhouJun3，HuangXinwen1（1.CollegeofBiologicalandEnvironmentalEngineering,ZhejiangUniversityofTechnology,Hangzhou310032,China;2.InstituteofIndustryEP&D,ZhejiangProvince,Hangzhou310015,China;3.DepartmentofEnvironmentalMonitoring,EnvironmentalProtectionAgencyofDongyangCity,Dongyang322100,China）Abstract:TheIndopedSnO2/Tielectrodewasusedasanode,andregardthetitaniumplateascathodetodegradestimulantp-nitrophenolwastewaterinaglasstrough.ThefactorssuchasvoltaicdensityandpHarethesystematicresearchintheprocessofdegradingp-nitrophenol.FormtheHPLCandionchromatograph(IC)results,wepresumethattheinitial·OHattackcanoccurattheC-NO2bondofp-NPinthereactionprocess,resultinginhydroquinoneandfollowingtheloseof-NO2.Furtheroxidationofhydroquinoneproducedintermediatessuchasbenzoquinone.Asthereactionproceeding,theseintermediatesexperienceseveralringopeningsinfurtheroxidization,formingsmallmoleculeacidsuchasformicacid,aceticacid,whichfinallyledtotheproductionofCO2andH2O.Keywords：paranitrophenol;electriccatalytic;electrolysis51!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!InSnO2/Ti4-、、。InSnO2/Ti4-。[1].[M].:,1995:10.[2],,.Ti/SnO2-Sb2O5[J].,2005,44(4):614-618.[3],,,.[J].,2007,11(21):52-56.[4],,.[J].,2003,24(2):121-124.[5],,,.US/O3[J].,2006,57(2):390-397.[6]KeiichiTanak