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58 8 Vol.58 No.8 20078 Journal of Chemical Industry and Engineering (China) August 2007侯红勋,王淑莹,闫 骏,彭永臻(,100022):,。,A2/O,、、、,。:(1),(PAOs),120min290.5236.7mgP·(gVSS)-1·d-1;PAOs、,49.4、38.88.91mgP·(gVSS)-1·d-1;(2),PAOs,3,PAOs;(3)NO-3,,PAOsNO-3。:;;;PAOs;NO-3:X701.3 :A:0438-1157(2007)08-2081-06EffectofdifferenttypescarbonsourcesonphosphorusreleaseinenhancedbiologicalphosphorusremovalprocessHOUHongxun,WANGShuying,YANJun,PENGYongzhen(KeyLaboratoryofBeijingforWaterQualityScienceandWaterEnvironmentRecoveryEngineering,SchoolofEnvironmentalandEnergyEngineering,BeijingUniversityofTechnology,Beijing100022,China)Abstract:Phosphorusrelease(P-release)isoneoftheimportantfactorsinenhancedbiologicalphosphorusremoval(EBPR)process,andinsufficientP-releaseusuallyisthemainreasonfortheinstabilityofEBPR.InordertostudytheeffectofdifferenttypesofcarbonsourcesonP-release,theeffluentactivatedsludgeoftheaerobiczoneoftheanaerobic-anoxic-aerobicoxidationditchprocesswasused.Differenttypesofcarbonsources,suchasacetate,propionate,glucose,ethanolandmethanolwereused.Themaintestwasmadethoughcaptivetestwitha10Lreactor.Theresultsindicatedthat:(1)Inanaerobicconditions,polyP-accumulatingorganisms(PAOs)releasedPrapidlywithacetateorpropionateactingascarbonsources,andthespecificPreleaseratewas290.5and236.7mgP·(gVSS)-1·d-1,respectively.Howeverwithglucose,ethanolormethanolactingascarbonsource,Preleasedslowly,thespecificPreleaseratewas49.4,38.8and8.91mgP·(gVSS)-1·d-1respectively.(2)Whereasinanoxicconditions,Preleaseratewasjustthesameastheanaerobicconditionsifacetateorpropionateactedascarbonsources.ButPwasseldomreleasedwithglucose,ethanolormethanolactingas 2006-08-09,2006-10-19。:。:(1977—),,。:(50628808);“”(2006BAC19B03);;。 Receiveddate:2006-08-09.Correspondingauthor:WANGShuying.E-mail:wsy@bjut.edu.cnFoundationitem:supportedbytheNationalNaturalScienceFoundationofChina(50628808). carbonsourceinanoxicconditions.(3)PAOsutilizedNO-3touptakePafterP-release,iforiginalNO-3washighenough,andacetateactedascarbonsource.Keywords:enhancedbiologicalphosphorusremoval(EBPR);anaerobicphosphaterelease;carbonsource;PAOs;nitrate (N)(P),。NN2,P。,,N、P。GB18918—2002NP。(),,。(en-hancedbiologicalphosphorusremoval,EBPR),EBPR,A/O(anaerobicaerobic)、A2/O、5Bardenpho、PhoredoxUCT[1-3]。,EBPR[2]:(1);(2)NO-3,(PAOs)COD,PAOs;(3);(4)—。4EBPR。,3,(Poly-P)、(Glycogen)-β-(PHB),。,[1]。,(polyphosphateaccumulatingorgan-isms,PAOs)(glycogenaccumulatingor-ganisms,GAOs)[3-6]。Adrian[4]SBRPAOsGAOs,PAOs,。PAOs、,,PAOs,。,。NO-3,NO-3[7]。A2/OEBPR,,2h,NO-3,,,NO-3,,NO-3。1 1.1 A2/O3:,、,3200、28095L,1。、(HRT)0.5、1.518h,100%,30%,70%。。,,,,,·2082· 58 1 Fig.1 Schematicdiagramofoxidationditchsystem1—watertank;2—influentpump;3—anaerobiczone;4—anoxictank;5—oxidationditch;6—airpump;7—airdiffuser;8—mixer;9—secondaryclarifier;10—RASpump;11—WASpump;12—DOprobe;13—ORPprobe;14—pHprobe;15—affluent 2 Fig.2 Schematicdiagramofexperimentalsystem1—stirrer;2—ORPinstrument;3—pHinstrument;4—samplingorifice ,。SBR,10L,2。1.2 ,,。。A2/O,。45~80d,COD、NH+4PO3-4332~425、45~645.1~8.4mg·L-1。,COD、NO-3PO3-440~50、1.0~3.00.3~1.0mg·L-1,pH7.4~7.5,MLSS5.5~6.0g·L-1,VSS3.5g·L-1,19~22℃。1.3 [8],。2 2.1 5NO-3,2h,NO-3,。KNO3NO3-15mg·L-1,120min,53。3(a),,PAOs,120min290.5236.7mgP·(gVSS)-1·d-1,60min;PAOs、,49.4、38.88.91mgP·(gVSS)-1·d-1。·2083· 8 :3(b),,PAOs,238.0210.4mgP·(gVSS)-1·d-1;。,NO-3。,、3,PAOs。、,NO-3PAOs。3:VFA、[1]。,60min,60min,COD(CODVFA),VFA;4%~5%,60min1.3%,。,。,120min,120min,,、,VFA。VFA,,,,,。VFA,NO-3,COD,。120minPAOs5,CODCOD(COD/P)4。4,52hCOD/P,COD。、,1PCOD。,VFAPAOs,、GAOs[5-6]。PAOs,GAOs4 120minPO3-4,CODCOD/PFig.4 ProfileofPO3-4,CODandCOD/Pin120mininanaerobicconditions 。PAOsGAOs4、,CODPAOsGAOs。PAOs,PAOs、,。GAOs、,。2.2 NO-3,。2h,NO-3。3,,COD300mg·L-1,Ⅰ、ⅡⅢNO-30、1530mg·L-1。3SBR2h,22℃。PO3-4、CODNO-35。5,VFA,60minNO-3,3。NO-3,PAOs,60min。60min,ⅠⅡ,1h456395mgP·(kgVSS)-1·d-11~2h94mgP·(kgVSS)-1·d-1。60minCOD16596mg·L-1,,VFA,,PAOsGlycogen[1]。·2084· 58 ,20~30mg·L-1,60~80mg·L-1,VFA。Ⅲ,60minPO3-4,,60minⅢNO-314.3mg·L-1,NO-3,PO3-4。Barth1gNO-34gBOD[9],GeorgerbCOD(readilybiodegradableCOD)NO-36.6[9]。ⅠⅡCOD。ⅡNO-36。6 NO-3CODFig.6 ProfileofNO-3toCODdepletedviadenitrificationintestⅡ 6,Ⅱ,NO-3COD,COD=5.2NO-3(1)ⅠⅢ60minCODⅢNO-3,CODNO-35.2,COD/NO-3。ⅠⅢ60minCODⅢNO-33.9。Ⅲ60minNO-3COD60minNO-3COD。,。,。,,,。Saito[10],,。3 (1),PAOs,120min290.5236.7mgP·(gVSS)-1·d-1;PAOs、,49.4、38.88.91mgP·(gVSS)-1·d-1。(2),PAOs;、,PAOs。(3)NO-3,PAOsNO-3。·2085· 8 :1gNO-35.2gCOD,1gNO-33.9gCOD,,。4 VFA,NO-3,——,,;COD,——,。References[1] JanssenPMJ,MeinemaK,vanderRoestHF.BiologicalPhosphorusRemoval:ManualforDesignandOperation.London:IWAPublishingofAllianceHouse,2002:14-15[2] RobertJSSeviour,TakashiMino,MotoharuOnuki.Themicrobiologyofbiologicalphosphorusremovalinactivatedsludgesystems.FEMSMicrobiologyReviews,2003(27):99-127[3] AdrianOehmen,TeresaVivesM,LuHuabing,YuanZhiguo,JurgKeller.TheeffectofpHonthecompetitionbetweenpolyphosphate-accumulatingorganismsandglycogen-accumulatingorganisms.WaterResearch,2005(39):3727-3737[4] AdrianOehmen,AaronMSaunders,TeresaVivesM,YuanZhiguo,JurgKeller.Competitionbetweenpolyp
本文标题:不同碳源类型对生物除磷过程释放磷的影响侯红勋
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