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02006,。,:(NO3--N)(TN)。。、,。、,。,、,,。,。2。,、。NO3--N,,。11.1Φ80mm×1m,1。,400mm,3~5mm,150mm,150mm,,100mm。1,1,2(1.,210024;2.,310012):,。1.2m/h(HRT=20min),25,50mg/L25mg/L,1.18kg/(m3·d)1.10kg/(m3·d),,。,,。,,,。:;;;:X2:B:1674-4829(2009)03-0005-03:2009-02-24:(BK2007181);2008(708047);(2006BAC19B01).:(1980-),,,,.BiofilmAccretionandStartupofDenitrificationBiofilterZHOUBi-bo,CAOJia-shun,XUZhe-mingAbstract:Thebiofilmaccretionandstartupofdenitrificationbiofilterwerestudiedinthepaperwhichprovidedatheoreticalbasisfortheprocessofbiofilmaccretioninthedenitrificationbiofilter.Whenfiltrationratewas1.2m/h(HRT=20min)andthedenitrificationbiofilterrantothe25thday,thenitrateconcentrationininfluentchangedfrom50mg/Ltoabout25mg/Lorsoandthenitrateremovalloaddroppedto1.10kg/(m3·d)from1.18kg/(m3·d)whichshowedasuccessofbiofilmaccretioninthedenitrificationbiofilter.Inthedenitrificationbiofilter,theammoniawasremovedbydenitrifyingbacteriaassimilation,sotheremovalratewasnothigh.Whenthecarbonsourceandnitrogenweresufficient,thedenitrificationreactionfollowedzero-orderkinetics,thatistosay,thedenitrificationratewasforeigntothepollutantconcentration,andonlyrelatedtothenumberofdenitrifyingbacteria.Keywords:Denitrification;Biofilmaccretion;Assimilation;Kinetics22320096EnvironmentalScienceandTechnologyVol.22No.3Jun.200920096ρ(NO3--N)/(mg·L-1)100806040200,;,DN15。11.2,:、、、、、。85%,、、、、、、、。1。11.32:22200851~2008530,,1.2m/h(HRT=20min),V():V()2∶1~0∶1,,,3。3:,,。1,100mm。15d0~100mm。25d300mm。26,,,,100mm。30,5d,,,,。22.1NO3--N,。,NO3--N。2NO3--N。2NO3--N2,、NO3--N,,NO3--N5“”,,,9~13,10%。,NO3--N50mg/L,NO3--N30%;NO3--N25mg/L,NO3--N60%,,NO3--N,。ρ(COD)512~96ρ(NO3--N)109.2~24.6ρ(NH3-N)50.0~11.1ρ(TP)20.0~4.2CODNH3-NNO2--NNO3--NTN[1]N-(1-)--GB11914-1989GB7479-1987GB7493-1987GB11894-1989/(.)5.1~5.65.7~5.125.13~5.185.19~5.245.25~5.30ρ(COD)500400300200100ρ(NO3--N)10590755025ρ(NH3-N)4741332312ρ(TP)126432V():V()2:11:10.5:100DN8DN8DN81.0%DN15DN15DN880mm150mm1.5%150mm400mmDN15mg·L-1mg·L-1NO3--NNO3--N/%706050403020100t/d1359111315171921232527297DN86223,NO3--N。NO3--N3。3NO3--N3,6dV()∶V()2∶1,NO3--N。1∶1,NO3--N0.68kg/(m3·d),V()∶V()0.5∶1NO3--N0.88kg/(m3·d),NO3--N1.18kg/(m3·d),NO3--N。,,,NO3--N。,NO2--N,,,NO3--N,NO2--N[1]。2.2(NH3-N),NH3-N,NH3-N,NH3-N。4NH3-N。4NH3-N4,NH3-N,NH3-N10%,。,,。,NH3-N,,,NH3-N,NH3-N,。2.3,,。,,。。3,NO3--N50mg/L25mg/L,NO3--N1.18kg/(m3·d)1.10kg/(m3·d),。,,,[2]。[3],NO3--N,。,[4-5],1/2;[6],,,,;,,,。3(1)25,NO3--N50mg/L25mg/L,NO3--N1.18kg/(m3·d)1.10kg/(m3·d),,。(2),,。(3),,,。[][1]《》.[M].4.:,2002.[2]HERNANDEZD,ROWEJJ.OxygenregulationofnitrateuptakeindenitrifyingPseudomonasaeruginosa[J].AppliedandEnvironmentalMicrobiology,1987,53(4):745-750.[3].[M].:,1993.[4].[J].,1994,13(10):8-12.[5]HARRMOES.Thesignificanceofporediffusiontofilterdenitrification[J].JournalWPCF,1976,48(2):377-388.[6],,.[J].(),2007,22(2):119-122.()1.51.20.90.60.301357911131517192123252729t/d/[kg·(m3·d)-1]ρ(NH3-N)/%t/dρ(NH3-N)/(mg·L-1)504030201003025201510501357911131517192123252729ρ(NH3-N)7
本文标题:反硝化生物滤池的挂膜与启动周碧波
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