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©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(1.,150090;2.,150059):/10mg/L4min,/BAFCODNH3-N58%90%;TOCUV25425%75%90%,TOC/UV2541,(BDOC)018111mg/L210217mg/L1k5219%72173%:;(BAF);;:X703.1:A:0253-4320(2006)11-0032-05Advancedtreatmentofsewagesecondaryeffluentbypreozonation/biologicalaeratedfilter(BAF)WANGShu2tao1,MAJun1,TIANHai1,ZHANGHai2yang2(1.SchoolofMunicipalandEnvironmentalEngineering,HarbinInstituteofTechnology,Harbin150090,China;2.WenchangWastewaterTreatmentPlantofHarbin,Harbin150059,China)Abstract:Thedegradationcharacteristicsofsewagesecondaryeffluentbythepreozonation/biological2aerated2filter(BAF)couplingprocesswerestudied.TheexperimentalresultsindicatedthattheremovalratesofCOD,NH32N,TOC,UV254andthecolorofsecondaryeffluentreached58%,90%,25%,75%and90%,respectively,with10mg/Lofozonedosageand4minofthecontacttime.PreozonationenhancedthebiodegradabilityofthesecondaryeffluentbydoublingtheTOC/UV254ratioandimprovingtheBDOCvaluefromoriginal018-111mg/Ltofinal210-217mg/Lwiththedosageandcontacttimementionedabove.Atthesametime,therateoforganicswhoseMW1kDaltoninthesecondaryeffluentwasincreasedfromoriginal5219%tofinal72173%in4minofpreozonationtime.Keywords:preozonation;biologicalaeratedfilter(BAF);advancedtreatment;secondaryeffluent:2006-07-18:(705013):(1975-),,;(1962-),,,,,0451-86284462[1-2],,[3]2080,,[4],[5-8],,,,,()(-2107V,),[9-11],/(BAF),1111123Nov.20062611ModernChemicalIndustry200611©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(13mm,300mm),1BAF,2BAFBAF40mm2400mm,24mm,1600mm2BAF,1L/h,018h1;2;3;4;5;6;7;8;9;10;11;12;13;14;15;16;17;181BAF;192BAF;20BAF;21;221(G-1,)40mm1600mm,5mmG-336min4min(,),,,(),BAF112(COD350400mg/L,NH3-N3040mg/L),(2000mg/L),313d,1d,3d,,,COD(3050mg/L),COD25%(31)[5]JosephC,KleinM,DavidM,etal.Surfaceanalysisbyphotoelectronspectroscopyandaugerelectronspectroscopyofmolybdenum2dopedraneynickelcatalyst[J].AnalChem,1984,56:685-689.[6]IrchenkoAG,KhakimorYS,AbidovaMF.Useofalloycatalystsforcontinuoushydrogenationofglucosetosorbitol[J].UzbKhimZh,1990,3:66-68.[7]AzimbekovsR,IvchenkoAG.Semi2continuoushydrogenationofglu2cose[J].UzbKhimZh,1985,4:73-74.[8]TaiA,KikukawaT,SugimuraT,etal.Animprovedasymmertrically2modifiednickelcatalystpreparedfromultrasonicatedRaneynickel[J].BellChemSocJpn,1994,67:2417-2473.[9]GallezotP,CerinoPJ,BlancB,etal.Glucosehydrogenationonpro2motedRaney2Nickelcatalyst[J].JCatal,1994,146(1):93-102.[10]HadleyRI.Hydrogenationcatalyst:US,4018835[P].1977-04-19.[11]HofferBW,CrezeeE,MooijmanPRM,etal.TheroleofactivephaseofRaney2typeNicatalystsintheselectivehydrogenationofD2glucosetoD2sorbitol[J].AppliedCatalysisA:General,2003,253:437-452.[12]HofferBW,CrezeeE,MooijmanPRM,etal.CarbonsupportedRucatalystsaspromisingalternativeforRaney2typeNiintheselectivehy2drogenationofD2glucose[J].CatalToday,2003,79/80:35-41.[13]MickeleB,PierreG,AlainP,etal.Activecarbonsascatalystsforliq2uidphasereactions[J].CatalToday,2005,102/103:160-165.[14]GallezotP,NicolausN,FlecheG,etal.Glucosehydrogenationonrutheniumcatalystsinatrickle2bedreactor[J].JCatal,1998,180(1):51-55.[15]GorpKV,BoermanE,CavenaghiCV,etal.Catalytichydrogenationoffinechemicalssorbitolproduction[J].CatalToday,1999,52:349-361.[16]AuerA,FreundA,PietschJ,etal.Carbonassupportsforindustialpre2ciousmetalcatalysts[J].ApplCatalA,1998,173:259-271.[17]GurreroRuizA,BadenesP,RodriguezI.StudyofsomefactorsaffectingtheRuandPtdispersionsoverhighsurfaceareagraphite2supportedcat2alysts[J].AppliedCatalysisA:General,1998,173:313-321.[18]BetancourtP,RivesA,HubautR,etal.Astudyofruthenium2aluminasystem[J].AppliedCatalysisA:General,1998,170:307-314.[19].Ru/C[J].,1997,6:52-55.[20],,.Ru/C[J].:,2005,37(4):80-83.[21],,.[J].,1995(1):15-19.[22]LuoHS,GuoHB,LiHX,etal.AnovelultrafineRu2Bamorphousal2loycatalystforglucosehydrogenationtosorbitol[J].ChineseChemicalLetters,2002,13:1221-1224.[23]LiHexing,LiHui,WangMinghui.GlcosehydrogenationoverpromotedCo2Bamorphousalloycatalyst[J].ApplCatalA:General,2001,207(1/2):129-137.33200611:/©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(TOC)ShimadzuTOC-5000(NH3-N)(TN)ShimadzuTOC-5000pHpHUV254ShimadzuUV-2550(BDOC)[12]/ShimadzuTOC-5000[13]:K2Cr2O7CoSO4,420nm:y=010004x+010021,R2=019998(y,x),30cm(13mm),SS()22COD/mgL-1BOD/mgL-1NH3-N/mgL-1TN/mgL-1TOC/mgL-1UV254/cm-1pH305081512202030913011801246197194011151625110121714221110mg/L,CODTOC2,4min,CODTOC381210192mg/L29168111mg/L,2517%1615%30min,CODTOC5%,,4min,,4min,10mg/L1COD;2TOC;3COD;4TOC2CODTOC212/BAF/BAF3,25d(40),/BAFCODNH3-N,343,BAFCOD20%30%17%25%,/BAF46%63%,COD,BAFCOD4,,NH3-N2%,,NH3-N,1;2BAF;3+BAF8L/min1722COD3050mg/L()3/BAFCOD1;2BAF;3+BAF4/BAFNH3-N432611©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(15%),(),BAF1;2;3+BAF;4;5+BAF5/BAFTOC/BAFUV25467UV254254nmCCCO,67,/BAFUV25475%90%,UV25460%80%,,CCCO,UV2541;2;3+BAF;4;5+BAF6UV2541;2;3+B