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References():[1] HuangJunzuo(),GuLijun(),LiuBaosheng(),etal.Technologyforsulfurdioxidesandnitrogenoxidesremovalfromindustrialflue-gas[J].ModernChemicalIndustry(),2001,12(21):44～47[2] KiyoshiYamazaki,TadashiSuzuki,NaokiTakahashi,etal.EffectofadditionoftransitionmetalstoPt/Ba/Al2O3catalystontheNOxstorage-reductioncatalysisunderoxidizingconditionsinthepresenceofSO2[J].ApplCatalB,2001,30:459～468[3] YehJamesT,MaWarrenT,PennlineHenryW,etal.Integratedtest-ingoftheNOXSOprocess:simultaneousremovalofSO2andNOxfromFlueGas[J].ChemEngComm,1992,114:65～88[4] MaWTandHaslberckJL.NOXSOSO2/NOxfluegastreatmentpro-cessproof-of-concepttest[J].EnvironmentalProgress,1993,12(3):163～167[5] WildeJurayDeandMarinGugB.Investigationofsimultaneousadsorp-tionofSO2andNOxonNa-γ-aluminawithtransienttechniques[J].CatalToday,2000,62:319～328[6] ChenYing(),LiXuehui(),XuJianchang(),etal.SimultaneousanalysisofSO2andNOingasatpresenceofO2[J].EnvironmentalProtectionofChemicalIndustry(),2004,24(3):216～220AbsorptionandinteractionofSO2andNOonNa-γ-Al2O3CHENYing1,WANGLe-fu1,2,LIXue-hui2(1CollegeofChemicalEngineering,MaomingCollege,Maoming525000,Guangdong,China;2SchoolofChemicalEngineering,SouthChinaUniversityTechnology,Guangzhou510641,China)Abstract:Thepresentpaperintendstointroducetheauthors're-searchontheabsorptionofSO2andNOonNa-γ-Al2O3.Theresearchwasdonebymeansofexperimentsinafixedbedplugflowreactorundertheconditionsof423Kandatmosphericpressure.SinceSO2andNOcanbeadsorbednotonlyseparatelybutalsosimultaneouslyonthesorbentnomatterwhetherthereexistsO2ornotinthefeedgasatlowtemperatures.Actually,O2canpromoteadsorptionsofSO2andNOifO2ispresentedinthefeedgas.ThepaperhasalsostudiedtheinteractionbetweenSO2andNOadsorptiononNa-γ-Al2O3.Inthisconnection,hepaperprovesthatthepresenceofNOisinfavoroftheadsorptionofSO2,whereastheeffectofSO2onadsorptionofNOhasbeenmadecomplicated,ontheonehand,becauseSO2canpromoteNOadsorptionbypromotingNOoxidationtoformNO2,ontheotherhand,SO2canresultinthedecreaseofNOadsorptionbyacceleratingthedesorptionofNO2.O2canpromotetheinteractionofSO2andNOonNa-γ-Al2O3.Keywords:catalystengineering;SO2;NO;Na-γ-Al2O3;adsorp-tion;interactionCLCnumber:X511 Documentcode:AArticleID:1009-6094(2005)04-0023-04＊:2005-04-27:,,,。:(20477011):1009-6094(2005)04-0026-04＊李 平,韦朝海(,510640) :、pH、NH+4-N()、DO。,,,。,pH7.5～8.5。300mg/L0.6kgNH+4-N/(m3·d),NH+4-N,。DO,DO,DO0.5～0.6mg/L,,DO1.1～2.6mg/L,。:;;;;;:X703.1 :A0 、/。NH+4-N,。[1]。,,[2]。,,,,,[3]。 [4]pH、、DO,,。1 1.1 1。,-。4.8L,,4.8L,0.8。265420058 安全与环境学报JournalofSafetyandEnvironment Vol.5 No.4 Aug,20051 Fig.1 Schematicdiagramofexperimentaldevices1.2 (1989,2003),,(1)。CODCr/NH+4-N,NH+4-N,--。1 Table1 CharacteristicsoflandfillleachateCODCr/(mg·L-1)NH+4-N/(mg·L-1)pH,,,604036008.61.3 9.0×107MPN/mL3.5×107MPN/mL,,[4]。2。,(),NH+4-N、NO-2-NNO-3-N。,NH+4-N(NH4ClNH+4-N)。2 Table2 Processparameteroffluidizedbedreactor /℃25～3025～3025～30pH6.3～7.56.8～7.67.0～8.5/h4.8～9.64.8～9.64.8～9.6/(mg·L-1)0～0.21.5～3.51.5～3.5/(L·h-1)0.4～0.80.4～0.80.4～0.8CODCr/(mg·L-1)2900～30001900～2200500～700/(mg·L-1)450～500450～500250～3001.4 pH:pHS3pH;DO:WTWOxi330i;NH+4N:-;NO-2N:N(1);NO-3N:[5];、:(OUR,OxygenUptakeRate)[6]。2 2.1 pH ,pH,1mgNH+4-N8.64mgHCO-3,,NH+4-NH+,,pH。2pH。,pH5.59.5,。pH5.5,63.9%,pH7.5～8.5,90.6%～94.7%。pH,,pH=9.5,52.7mg/L,。 pH,pH=5.5(1)、pH=7.5(2)pH=9.5(3)3(OUR),3。pH7.2～8.0[7],2,(1),,OUR45.56%,,12.70%。(3),,10.08%,,OUR53.32%。2。(1),,NH+4-N,,。(3),,,NO-2-N,,,1。2 pHFig.2 EffectofpHonnitrificationprocess Wendy[8],pH2720058 ,: Aug,2005pH,。,,。pH,,10～150mg/L,0.1～1.0mg/L。pH(3),。23。,pH7.5～8.5。2.2 NH+4-N ,。NH+4-N,4。135～300mg/L,93.5%～96.0%。,。478.5mg/L,0.96kgNH+4-N/(m3·d),73.1%。129.2mg/L,。,300mg/L0.6kgNH+4-N/(m3·d)。 33,,5。(),12。(),40%,16%。,,,,,。,,μNSmaxμNmax,。Tijhuis[9],,,,,。,3,。2.3 DO ,DO。DO1.0mg/L4.0mg/L0.5mg/LNH+4-N,6。DO1.1～2.6mg/L,93.2%～97.1%,,85.2%～91.5%,,6.9～9.8mg/L,NH+4-N。DO4.1mg/L,NH+4-N,,,,。DO,NO-2-N。3 pHFig.3 EffectofpHontheactivityofNitrifiers4 NH+4-NFig.4 EffectofinfluentNH+4-onnitrificationprocessNconcentration5 NH+4-NFig.5 EffectofinfluentNH+4-NconcentrationontheactivityofNitrifiers3 Table3 Technicalparametersofdifferentinfluentcondition 123/(mg·L-1)150.0301.5478.5/(kg·m-3·d-1)0.30.60.96,DO,0.5～0.6mg/L,6NO-2-N,DO1.2mg/L13.3mg/L158.3～169.8mg/L,2.3%28 Vol.5 No.4 安全与环境学报 5462%～63%。,80.6%～83.3%,16.0%～28.4%。,NH+4-N,。 [7],。μN=(μN,max)DOK0+DO K0,0.2～0.4mg/L。DOK0,μN=μN,max。K0,,,。6 Fig6 Effectofdissolvedoxygenonnitrificationprocess [10],,,,,,NO-2-N,。。,DO,DO0.5～0.6mg/L,,DO1.1～2.6mg/L,。3 1),,。,。pH7.5～8.5。 2)NH+4-N,NH+4-N,。300mg/L0.6kgNH+4-N/(m3·d)。 3)DO,DO0.5～0.6mg/L,,DO1.1～2.6mg/L,。References():[1] JokelaJPY,KettunenRH,SormunenKM,etal.Biologicalnitrogenremovalfrommunicipallandfillleachate:low-costnitrificationinbiofil-tersandlaboratoryscalein-situdenitrification[J].WatRes,2002,36:4079～4087[2] MaWenyi()andYangLiuyan().EnvironmentalMicrobiologicalEngineering()[M].Nanjing:Nan-jingUniversityPress,1999.176～186[3] ByongHeeJun,YasunoriTanjiandHajimeUnno.Stimulatingaccumu-lationofnitrifyingbact