反硝化聚磷诱导过程中聚磷速率的变化特性分析杨永哲

35　320039西安建筑科技大学学报()J.Xi’anUniv.ofArch.&Tech.(NaturalScienceEdition)Vol.35　No.3Sep.2003杨永哲,王蔚蔚,王　磊,王　韬,王志盈(,710055)　:SBR——,(PAOs)(DNPAOs).PAOs:NO-3DODNPAOsDOnon—DNPAOs.——,.:废水生物处理;聚磷;反硝化;硝酸盐;聚磷速率:X703　　　　:A　　　　:1006-7930(2003)03-0251-04　ResearchonthecharacteristicsofphosphorusuptakerateduringtheinductionofdenitrifyingdephosphatationYANGYong-zhe,WANGwei-wei,WANGLei,WANGTao,WANGZhi-ying(SchoolofEnvironmentalandMunicipalEngineering,Xi'anUniversityofArchitecture&Technology,Xi'an710055,Chian)Abstract:SBRexperimentswereperformedbyasequenceofanaerobic/anoxic/aerobic.Theeffectofvarioustypesandconcentrationsofelectronacceptoronanoxicphosphorusuptakewereinvestigatedindetailtoobtainabetterinsightintothebehaviorofphosphate-accumulatingorganisms(PAOs)anddenitrifyingphosphate-accumulatingorganisms(DNPAOs).Resultsofexperimentalinvestigationsarepresented,stronglysupportingthehypothesisthatPAOsfromactivatedsludgesystemsconsistoftwogroups:DNPAOswhichcanuseeitheroxygenornitrateasthefinalelectronac-ceptorandnon-DNPAOswhichcanuseonlyoxygenandgivingthecharacteristicsofphosphorusuptakerateduringtheanaerobic/anoxic/aerobicperiod.Keywords:biologicalwastewatertreatment;phosphorusremoval;denitrification;nitrate;phosphorusuptakerate,[1],.,,,[2、3、4],.1　研究方法1.1　1.:2003-04-23:(50008014):(1970-),,,,.DOI:10.15986/j.1006-7930.2003.03.012图1　试验装置示意图10,9SBR6,14,812.1,5;3.4.13,ORP/pH1516.1.2　:(1)、,10L.(2),2.5L,NO-3—N.(3)SBR,5.5L,5.0L,.MLSS3000～3100mg/L,,15d.(4),,25℃.(5)ORP/pH,pH、ORP、DO.pH7.0—8.5.1.3　1.1　(mg/L)(mg/L)SolubleBOD5(SBOD5)350±10TP10±1NH+4-N30±3SS0±0.5NO-x-N0±0.5(CaCO3)350±10TN30±3pH7.5±0.5PO3-4-P10±1图2　一周期内聚磷速率随时间的变化情况(厌氧(2h)—缺氧(1h)—好氧(2h))2　缺氧段与好氧段聚磷速率的变化特点——,,NO-3—N:5mg/L、10mg/L、20mg/L、30mg/L、40mg/L(NO-3—N),.(2h)—(1h)—(2h),,,,2.:(1),NO-3—N5mg/L10mg/L,0mgP/gSS·h,,NO-3—N0mg/L,3.3,NO-x—N,NO-x—NPHB,PO3-4—P,.:,NO-3—N252　　　　　　　　　　　　　　　()　　　　　　　　35图3　一周期内NOx-—N浓度随时间的变化情况(厌氧(2h)—缺氧(1h)—好氧(2h)),DNPAOsPHB,,,NO-3—N;,DNPAOsPHB,,PHBNO-3—N,PHB,,PHB,.3NO-3N,NH+4—N.(2),,NO-3—N,PHBDO:1)NO-3—N5mg/L,(12.83mgP/gSS·h),—(12.91mgP/gSS·h);2)NO-3—N10mg/L,,(10.01mgP/gSS·h)—.:NO-3—N5mg/L10mg/L,,DNPAOsPHBPO3-4—P,DNPAOs.,DNPAOsDOPHB,DNPAOs,NO-3—N,DNPAOs,,.(3):NO-3DODNPAOs;DOnon—DNPAOs,,DNPAOsnon—DNPAOs.(4)NO-3—N,,NO-3—N5mg/L,8.65mgP/gSS·h,NO-3—N10mg/L,9.01mgP/gSS·h,NO-3—N20mg/l,9.36mgP/gSS·h.NO-3—N5mg/L,PO3-4—P(4):图4　不同NO-3—N浓度下,一周期内PO3-4—P浓度随时间的变化关系20-30%(NO-3—N5mg/L)40-50%(NO-3—N20mg/L).,NO-3—N,.3　结语(1)——,,,.(2).(3)——,NO-3—N,;.(下转第257页)2533:,,,,.3　城市雕塑的艺术性、工程性、科学性相结合的重要性,,,,,,,,.,,,.,,,,,.,,,,、、,,.:,,,,,,,.、,,,,,.、..:[1]　.[M].:,2000.(上接第253页)(4)PAOs,NO-3DODNPAOsDOnon—DNPAOs,DNPAOs.:[1]　Kuba.T.SmoldersG,vanLoosdrecht,MCM.etal.Biologicalphosphorusremovalfromwastewaterbyanaero-bic-anoxicsequencingbatchreactor[J].Waterscienceandtechnology.1993,27(5-6):241-252.[2]　BakerPSandDoldPL.Denitrificationbehaviorinbiologicalexcessphosphorusremovalactivatedsludgesystem[J].Waterresearch.1996,30:769-780.[3]　Kuba.T.vanLoosdrecht,MCM.Brandse.FA.etal.OccurrenceofdenitrifyingphosphorusremovingbacteriainmodifiedUCT-typewastewatertreatmentplants[J].Waterresearch.1997,31(4):777-786.[4]　Minhold,T,Filipe.CDM,Daigger,GT,etal.Characterizationofthedenitrifyingfractionofphosphateaccumu-latingorganismsinbiologicalphosphateremoval[J].Waterscience&technology.1999,39(1):31-42.2573: