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AdvancedtreatmentofcompositewastewaterfromregeneratedpapermakingbyO3/UV+BACtechnologyWuDi1,ZhangXuan2,SunXingfan2,LiTianzeng1(1.BeijingSoundGroupR&DCenter,Beijing101102,China;2.SchoolofEnvironmental&MunicipalEngineeringofLanzhouJiaotongUniversity,Lanzhou730070,China)O3/UV+BAC1,2,2,1(1.,101102;2.,730070)[],。,Ca(OH)2PAM,O3/UV,(BAC),COD50mg/L,79.1%,,pH,SS10mg/L,100mg/L。[]/;;[]X703.1[]A[]1005-829X(2009)01-0039-04Abstract:Aimingattheeffluentofsecondarysedimentationtankofthecompositewastewaterfromregeneratedpapermakingindustry,technologicalstudieshavebeencarriedouttomakethewaterqualityreachtherequirementsoftheindustrialrecycleandthestandardofmiscellaneouslydomesticuse.TheresultsshowthatCa(OH)2andPAMarechosenascoagulatingagents,O3combinedwithUVasakindofadvancedoxidationprocesses(AOPs)isusedforcarryingouttheadvancedoxidation.Finally,throughtheprocessofbiologicalactivecarbon(BAC),theCODremovalratereaches79.1%,andtheCODislessthan50mg/L,whichreachesthewaterqualitystandardforindustrialuses.Moreover,itisnotnecessaryforthepHtobeadjusted,SS10mg/L,andalkalinityislessthan100mg/L.Keywords:O3/UVtechnology;biologicalactivecarbon;papermakingwastewater,l/15,。SS、,、、、,COD。COD,COD,,〔1〕。Ca(OH)2〔2〕,O3(UV)(HO·)〔3〕,HO·,,。(BAC)〔4-5〕,。〔6〕CODBOD/COD,CO2H2O,BOD/COD,。,,〔7〕,。11.1752,pHS-3C29120091IndustrialWaterTreatmentVol.29No.1Jan.,200939,JJ-4,BS124S,3S-A3,LZB-3,(≥99.4%),SJD-1H(20W,254nm),(120L/min),(1~3mm,5%,8%~10%,850)。,,,40,CODCr220~230mg/L,pH7.44,SS70mg/L。1.2Ca(OH)2(PAM),30min,(16±0.2)℃,,(0.25~10μm),154mg/L,。,10L,,。2,,。22.1UV254COD12pH=3pH=11,UV254COD。12,,UV254COD。。pH=3,O320min,。,,,,。W.H.Glaze〔8〕、O3/UV,,:O3+hv→O2+O·O·+H2O→H2O2H2O2→2HO·,254nm,,、、,,,。2.2pHUV254pHUV2543。3,pH=11,UV254,。HoigneHO·,H2O2。,pH,O3HO2-,pH。,pHHO·,HO·〔9〕。O3pHHO2-,O39080706050403020100510152025pH=3pH=5pH=7pH=9pH=11/minUV254/%3pHUV2549080706050403020100510152025/minUV254/%1UV254pH=3+UVpH=3pH=11+UVpH=112COD4035302520151050pH=11+UVpH=11pH=3+UVpH=3510152025/minCOD/%2009-01,29(1)40,HO·,HO·,。O3pH〔10〕,:O3+OH-→HO2-+O2O3+HO2-→HO·+O2-+O2,pH7.5~8.5,,,,pH(pH3.5),,。2.3UV254,,,〔11〕,UV2544。4,UV254,30℃UV254,30℃,;40℃,,。,,,40℃COD48%,。,。,,16℃。2.4UV2540.1、0.2、0.4L/min,UV2545。5,,,,0.2L/min0.4L/min,,10min。,,。,,,,,0.2L/min,20min154mg/L。6pH=11、0.2L/min,。6O3/UV220~240nm,。2.5CODCOD7。7,COD,COD1009080706050403020100510152025/minUV254/%0.1L/min0.2L/min0.4L/min5UV2541.81.61.41.21.00.80.60.40.20220240260280300320340360380400/nm坻0min坻5min坻15min坭20min6-1009080706050403020100510152025/minUV254/%12℃16℃20℃30℃40℃4UV254,:O3/UV+BAC2009-01,29(1)41706050403060120180240300360420480/minCOD/%7COD。,,,、,。,,240min,COD48.7mg/L,。2.61m31,0.6/(kW·h)。3(1)O3/UV,,,,,。(2)Ca(OH)2COD25%~30%,,pH,O3/UV,pH,。O3/UV,SS10mg/L,100mg/L,,。(3),,,,。[][1],,.[J].,1999,19(4):8-10.[2],,.-[J].,2006,28(9):686-689.[3]SantiagoE,JaimeG,SandraC,etal.Comparisonofdifferentad-vancedoxidationprocessesforphenoldegradation[J].WaterRe-search,2002,36(4):1034-1042.[4]NishijimaW,OkodaM.Particleseparationasapretreatmentofanadvanceddrinkingwatertreatmentprocessbyozonationandbiolog-icalactivatedcarbon[J].Wat.Sci.Tech.,1998,37(10):117-124.[5]KimWH,NishijimaW,BaesAC,etal.Micropollutantremovalwithsaturatedbiologicalactivatedcarbon(BAC)inozonation-BACprocess[J].Wat.Sci.Tech.,1997,36(12):283-289.[6],,,.[J].:,2003,19(4):294-298.[7].-[J].,2001,21(1):34-36.[8]GlazeWH,KangJW,ChapinDH.Thechemistryofwatertreat-mentprocessesinvolvingozone,hydrogenperoxideandultravioletradiationozone[J].ScienceandEngineering,1987,9(4):335-352.[9]GlazeWH,KangJW.Advancedoxidationprocesses.Descriptionofakineticmodelfortheoxidationofahazardousmaterialsinaqueousmediawithozoneandhydrogenperoxideinasemibatchreactor[J].Ind.Eng.Chem.Res.,1989,28(11):1573-1580.[10],.[J].,1999,19(2):25-27.[11],,,.O3/UV[J].:,2007,37(1):148-152.[](1978—),2007,。:010-60507492,E-mail:zhenwudi1@sina.com。[]2008-08-24(),。::A.2--1--3-5%~10%;B.10%~15%;C.FC-N010.05%~0.2%;D.(14)3%~8%;E.3%~7%;F.8%~15%;G.5%~8%;H.5%~8%;I.。:,,,。()———,,,.CN101100601···············································01/(·t-1)2.515、O3/UV、BAC0.535、BAC3.052009-01,29(1)42
本文标题:UVBAC深度处理废纸制浆造纸废水
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