BAF处理二级污水处理厂出水生物挂膜研究陈转琴

　　　201129BAF陈转琴1　姚俊芹1　叶海龙2　王丽萍2(1.,　830046;2.,　830000)　:以二级城市污水处理厂出水为水源,对运行规模为1×104m3/d的曝气生物滤池进行生物挂膜研究。研究结果表明:可根据滤料表面生物相变化判断生物膜是否成熟;氨氮与COD的去除率不宜作为本次研究判断挂膜完成的标志。:曝气生物滤池;生物挂膜;去除率RESEARCHONBIOFILMOFBAFTOTREATTHEEFFLUENTOFSECONDARYSEWAGETREATMENTPLANTChenZhuanqin1　YaoJunqin1　YeHailong2　WangLiping2(1.SchoolofResourcesandEnvironmentalSciences,XinjiangUniversity,Urumqi830046,China;2.GaoxinWaterSource,Urumqi830000,China)Abstract:Thesecondarymunicipalwastewatertreatmentplanteffluentaswatersource,thebiofilmofBAFisstudied,whosecapacityis1×104m3/d.Theresultsshowthatthechangeinthefiltermembranesurfacephasecandeterminewhetherbiofilmismature;whiletheremovalrateofCODandammoniashouldnotbejudgedasasignforthecompletionofthebiofilminthisstudy.Keywords:BAF;biofilm;removalrate0　(biologicalaeratedfilter,BAF),、、[1],BAF,、、[2],。。COD[3],,。BAFN(),、,。,、COD、、,。1　1.1　BAF工艺流程BAF1。1　1.2　主要构筑物及工艺参数1.2.1　、、、、。。BAFN,N,SSCOD、BOD。5.0m×5.0m×6.3m,,8,,。BAF,87DOI:10.13205/j.hjgc.2011.s1.058　　　201129。5.0m×4.0m×3.2m,,2,、,22.4m3。1.2.2　1×104m3/d,1h;,4～6mm,572m3;,7～9d,40m3/min,864m3/min。1.3　挂膜方法及其过程。,[4]。。2011415,201159,1。1　/h/h04-15424,04-1663604-1884804-192h,2h1204-201h,1h1804-221h,1h2404-23;,、、、。　　、:1)。,、、,;2)。,,,,,;3)。、,,;4),、,,()、,。2　2.1　挂膜过程中COD的变化COD,COD2。2　COD,A-B,,,,COD,2COD4.6%,3COD27%,COD、。COD,COD,,COD。2.2　氨氮的变化3　,NH4+NO2-NO3-[5],,,,,,NH3-N,3。3,26.6%,,,NH3-N,26.6%723.7%,NH3-N。13NH3-N33%,35%。17～88　　　20112920,,,70%,,35%。。2.3　亚硝酸盐氮、硝酸盐氮的变化、4,0.2mg/L,0.5mg/L,,NH4+NO2-NO3-,。,,,,,[6]。43mg/L,,,17～20,30.9mg/L,,,。4　、2.4　挂膜的影响因素BAF,。,、、、pH、、、[7],。2.4.1　。,,COD,853.9mg/L,COD166.7mg/L,,,。ρ(COD)97.5～197.2mg/L,ρ(NH3-N)38.3～53.9mg/L,35%。2.4.2　,。BAF、,,。、。16.3～22.5℃,,16d。2.4.3　,、。2mg/L,,,。A-B,,DO4.5～5.0mg/L,DO7.3mg/L,,DO3.4mg/L,,,DO。3　1),()、,16d。2)BAF,,,,BAFCOD,COD。3),COD、,35%。。[1],,.[J].,2008,21(6):20-21.[2],,,.[J].,2006,24(1):9-13.(126)89　　　201129neeringChemistryResearch,1995,34(7):2155-2201.[8]BassM.LatestadvancesinUVdisinfectionhydrodynamicsimula-tionandrelationtopracticalexperiences[J].ProceedingAquatechAmsterdam,1996,46(4):581-590.[9]Do-QuangZ,DjebbarR,BlatchleyER,etal.Computationalfluiddynamicsmodelingofultravioletdisinfectionreactorperformance:optimizationofflowinverticallampopenchannel[J].Environmen-talEngineeringConferenceEdmontonASCE-CSCE,1997,38(6):71-78.[10]TaghipourF,Sozzi,A.Modelinganddesignofultravioletreactorsfordisinfectionby-productprecursorremoval[J].Desalination,2005,176(1):71-80.[11]ChiuK,LynDA,SavoyeP,etal.IntegratedUVdisinfectionmodelbasedonparticletracking[J].JournalofEnvironmentalEngineeringASCE,1999,125(1):459-466.[12]LynDA,ChiuK,BaltchleyER.NumericalmodelingofflowanddisinfectioninUVdisinfectionchannels[J].JournalofEnviron-mentalEngineeringASCE,1999,125(1):17-23.[13]LiuD,DucosteJJ,JinSS,etal.Evaluationofalternativefluenceratedistributionmodels[J].JournalofWaterSupply:ResearchandTechnologyAQUA,2004.53(6):391-408.[14],,.CFD[J].,2007,2(2):191-206.[15],,.[J].,2008,34(2):16-20.[16]BoltonJR.Calculationofultravioletfluenceratedistributionsinanannularreactor:Significanceofrefractionandreflection[J].WaterResearch,2000,34(13):3315-3324.[17]BlatchleyER.NumericalmodelingofUVintensity:applicationtocollimated-beamreactorsandcontinuous-flowsystems[J].Wa-terReserch,1997,32(7):2205-2218.[18]JanexML,NaceA.UVfluencerateevaluationinaUVsystem:Simulatingtheimpactofoperatinganddesignparameters[J].In-terWaterandIrrigation,2003,23(2):17-20.[19]ElyasiS,TaghipourF.SimulationofUVphotoreactorforwaterdisinfectioninEulerianframework[J].ChemicalEngineeringSci-ence,2006,61(14):4741-4749.[20]CabajA,SommerR,SchoenenD.Biodosimetry:Modelcalcula-tionsforUVwaterdisinfectiondeviceswithregardtodosedistri-butions[J].WaterResearch,1996,30(4):1003-1009.[21]LynDA,BlatchleyER.NumericalcomputationalfluiddynamicsbasedmodelsofultravioletdisinfectionChannels[J].JournalofEnviromentalEngineering,2005,131(6):831-849.[22]UnluturkSK,ArastoopourH,KoutchmaT.ModelingofUVdosedistributioninathin-filmUVreactorforprocessingofapplecider[J].JournalofFoodEngineering,2004,65(1):125-136.[23]MunozA,CraikS,KrestaS.Computationalfluiddynamicsforpredictingperformanceofultravioletdisinfectionsensitivitytopar-ticletrackinginputs[J].JournalofEnvironmentalEngineeringandScience,2007,6(3):285-301.[24]JinSS,LindenKG,DucosteJ,etal.Impactoflampshadowingandreflectiononthefluenceratedistributioninamultiplelow-pressureUVlamparray[J].WaterResearch,2005,39(12):2711-2721.[25]NaunovicZ,PennellKG.DevelopmentandPerformanceofaflu-enceratedistributionModelforacylindricalexcimerlamp[J].EnvironmentalScienceandTechnology,2008,42(5):1605-1614.[26]ZhaoX,AlpertSM,DucosteJJ.Assessingtheimpactofup-streamhydraulicsonthedosedistributionofultravioletreactorsu-singfluorescencemicrospheresandcomputationalfluiddynamics[J].EnvironmentalEnginneerScience,2009,26(5):947-959.[27]SozziDA,TaghipourF.Computationalandexperimentalstudyofannularphoto-reactorhydrodynamics[J].InternationalJournalofHeatandFluidFlow,2006,27(6):1043-1053.[28]ChiuKP,Savoye,LynDA.EffectofUVSystemModificationsonDisinfectionPerformance[J].JournalofEnviromentalEngi-neering,1