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:2005-04-211:2001([2001]152).:(1973-),,,,:.VFA,,(,510405):VFAVFAVFA.,VFA,1mg20mgVFA-COD.,VFA,,.:;;;:X703.1:A:1672-0946(2005)03-0288-04StudyonVFAasbiologicalphosphorusremovalindexRONGHong2wei,ZHANGKe2fang,ZHANGChao2sheng(SchoolofCivilEngineering,GuangzhouUniversity,Guangzhou510405,China)Abstract:Thesumofthevolatilefattyacids(VFA)originallypresentinthewastewaterandtheamountofVFAthatcanbeformedthroughfermentationofotherorganicwastewaterconstituentsrepresentstheVFApotentialinthewastewater.AcorrelationbetweenthesolublephosphorusuptakeandtheVFApotentialwasfoundinthebiologicalphosphorusremovalprocess.Theresultsindicatethatapproximately20mgVFA2CODwererequiredtoremove1mgofsolublephospho2rus.Theorganicfractiondeterminedbyaerobicconditionscannotbeusedasameasureoftheamountofsubstrateforbio-Pbacteriainthewastewater.Therefore,VFApotentialmeasure2mentcanbeusednotonlytojudgeawastewaterssuitabilityforenhancedbiologicalphosphorusremoval,butalsoasatoolforoptimizationofanaerobicstagetoforecasttheefficiencyofbiologi2calphosphorusremovalprocess.Keywords:biologicalphosphorusremoval;volatilefattyacids;readilyfermentableorganicmat2ter;municipalwastewater,.[1,2],,,.,.,BOD5/TP15,[3].IAWQ2:SA()SF().BOD5,.,BOD521320056()JournalofHarbinUniversityofCommerce(NaturalSciencesEdition)Vol.21No.3Jun.2005.1VFA,,,COD(),(VFA),,(PHB),,[4];,PHB,,,.-,().,VFA[5].,VFAVFAPHB,.VFA.22.1,,15cm,120cm,2112L,,17L,2L.,.,NaAcCODVFA,NH4ClKH2PO4NH+3-N2TP.:pH618712;NH+3-N30mg/L;TP36mg/L;COD200500mg/L;20.1.,215h,6h,015h,,9h,.2.2VFAVFA,COD200mg/L,100mL250mL,,,,,(35015).,VFA,,VFA[6].1;2;3;4;5;6;7;8;9;10;11;12;13;14;15133.1VFAVFA,VFA,VFA.2.2,,VFA;VFA,;48hVFA,VFA,,.2d,VFA.2VFA9823,:VFA3.2VFA,,,PHB.PHB,,.VFA,,6mg/L,VFA.3,VFA,VFA,019384.VFA20mg-COD/mg-P.VFAAbu-gharahandRandall19911mgP20mgHAc-COD[7].,VFA.3VFA3.3VFA,.,COD/TPBOD5/TP,HongBOD(SBOD),SBOD/TP15,1.0mg/L[8].,,,CODBOD5,CODBOD5VFA,CODBOD5VFA,,.45,CODBOD5,VFA,VFACODBOD5,0162490173.,.4CODVFA5BOD5VFA3.4VFA,CODCODVFA,1.COD,COD,VFA,VFACOD.,,VFA,VFACOD,VFA40%50%.092()211COD/(mgL-1)COD/(mgL-1)VFA/(mgCODL-1)44030465420290165364228503452161472781693726618012517810824165996541)VFAVFA,,VFA.2)VFACODBOD5,VFA,.3)VFA,,.:[1]HASCOETMC,FLORENTZM,GRANGERP.Biochemicalas2pectsofenhancedbiologicalphosphorusremovalfromwastewater[J].Wat.Sci.Tech,1985,17(1):23-41.[2]SMOLDERSGJF,VANDERMIEJJ,VANLOOSDRENCHTMCM,etal.Stoichiometricmodeloftheaerobicmetabolismofthebio2logicalphosphorusremovalprocess[J].BiotechnologyandBioengi2neering,1994,44(4):837-848.[3],.[M].:,2001.[4],.[M].:,1998.[5]WENTZELMC,EKAMAGA,MARAISGVR.Kineticsofnitrifi2cation-denitrificationbiologicalphosphorusremovalsystems[J].WatSci.Tech,1991,23(4):555-565.[6]LIEE,WELANDERT.Amethodfordeterminationofthereadilyfermentableorganicfractioninmunicipalwastewater[J].Wat.Res,1997,31(6):1269-1274.[7]ABU-GHARARAHZH,RANDALLCW.Theeffectoforganiccompoundsonbiologicalphosphorusremoval[J].Wat.Sci.Tech,1991,23(4):585-594.[8]HONGSN.Abiologicalwastewatertreatmentsystemfornutrientre2moval[A].PresentedatEPAworkshoponBiologicalphosphorusre2movalinmunicipalwastewatertreatment[C].Annapolis,Maryland,1982,7:22-24.(287)2),4,105,.,.3),,,10%,.:[1],.(2)[M].:,1989.[2],,,.[J].,2003,29(11):15-18.[3],,,.[J].,1996,22(10):5-10.[4],,.[J].,1996,22(10):17-20.[5]SEPPANENHT.ExperienceofBiologicalIronandMan-ganeseRemovalinFinland[J].JIWEM,1992,6:333-341.1923,:VFA