低碳源下反硝化除磷菌培养及试验研究夏平

3312121.4300302.430072COD。X703Adoi10.3969/j.issn.1003-6504.2010.6E.0151003-6504(2009)03-0052-03ExperimentalStudyonDenitrifyingPhosphorusRemovalBacteriaforWastewaterofLowCarbonXiaPing1WangQi2Guxin-jian1Shuxiao-chun21.WuhanWaterGroup,Wuhan430030,China2.InstitutionofEnvironmentalEngineeringDesignofHubeiAcademyofEnvironmentalScience,Wuhan430072,chinaAbstractThisresearchindicatesthatDPBbecomethedominantspecieswithinductiontheactivatedsludgeofthenitrogenandphosphorusremoval.Theexperimentshowstheabsorbedamountofphosphorousonanoxicphrasedependsonthereleasedamountonanaerobicphrase.ThereleasedamountofphosphorusintherelativelyhighconcentrationofCODismorethaninthelowconcentration.Iftheenoughcarbonsourcesandnitrateexistatthesametime,DPBpreferusingthecarbonsourcestousingthenitrate.IntheconditionoflowcarbonDPBwouldchoosethenitrateastheelectronacceptorsothatthedenitrificationanphosphorusremovalatthesametimecouldbeachievedandtheuseefficiencyofcarbonsourceisimproved.KeywordsDPBlowcarbonden[e-mail]。GB18918-2002AB。COD/NH4+-N6.0[1][2](Den－itrifyingPhosphorusremovalBacteria,DPB)。11.11。COD、NH4+-N、TN、TP、、、DO、MLSS。CH3COONaKNO3KH2PO4Na2CO3NH4HCO3。1.2DPB(DPB)///COD(mg/L)NH4+-N(mg/L)TN(mg/L)TP(mg/L)℃52.3~97.624.7~71.235.0~85.03.0~13.320~251EnvironmentalScience&Technology336E20106Vol.33No.6EJune20106E,DPB。DPBDPBDPB/(A/O)//(A/A/O)DPB。TPKH2PO4TP10mg/L。A/O(/)/。210min30min180min60min8h[3]。28d9d1,TP8~10mg/LTP0.7mg/L93.56％,1TP。A/A/O(//)180min60min480min210minpH6.0～7.58.0[4]。60min8.5h。2。22.1DPB31dTP7.5mg/L9.0mg/LTP3.67mg/L1.36mg/LTP3184.9%3DPB。2.2DPBCOD445DPB[5]。2.3CODDPBDPB10LCOD60mg/L,100mg/LMLSS2130mg/L4h30min。6COD(a)COD(b)TP。COD。5333DPB(PHA)PHA[3]。2.4CODDPBCOD。DPBCODDBP。KNO3KH2PO4COD75.6mg/LTP7.2mg/L25.0mg/L4h30minCOD、TP。7。7CODDPB[3]。CODTP。COD30mg/LDPBTPDPBCOD。31(DPB)。2CODDPBPAOs。3DPB。[][1].[M].2002380-381.[2].A2N[J].200451(8):83-88.[3]TKuba,MC.MVanLoosdrecht,JJHeijnen.PhosphorusandnitrogenremovalwithminimalCODrequirementbyintegrationofdenitrifyingdephosphatationandnitrificationinatwo-sludgesystem[J].WaterResearch,1996,70(30):1702-1710.[4]TKuba,MCMVanLoosdrecht,JJHeijnen.Biologicaldephosphatationbyactivatedsludgeunderdenitrifyingconditions:pHinfluenceandoccurrenceofdenitrifyingdephosphatationinafull-scalewastewatertreatmentplant[J].WaterScienceandTechnology,1997,36(2):75-82.[5]AWachtmeister,MCMVanLoosdrecht,TKuba,etal.Asludgecharacterizationassayforaerobicanddenitrifyingphosphorusremovingsludge[J].WaterResearch,1997,31(3):471-478.54