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28220124JournalofHarbinUniversityofCommerceNaturalSciencesEditionVol．28No．2Apr．20122011－07－30．1985－．1121．2210022．150090PAC－MFHRTEPS．HRT1#、NO2－—N2#NH4+—N2#EPS10mg/L．PAC－MFEPSX505A1672－0946201202－0197－04StudyoneffectofextracellularpolymericsubstanceonbiologicaldenitrificationZHANGLin-yan1XUChuan-fu1MACong21．XuzhouMunicipalEngineeringDesignInstituteCo．LtdXuzhou221002China2．StateKeyLaboratoryofUrbanWaterResourceandEnvironmentHarbinInstituteofTechnologyHarbin150090ChinaAbstractTheeffectofbiologicalremovalofnitrogenbyPAC－MFsystematstart－upphaseunderdifferenthydraulicretentiontimeHRTwasinvestigatedandnitrificationactivitywascharacterizedbynitrificationratemethodtheimpactofEPSonthenitrificationactivitywasstudiedinthispaper．Theresultsindicatedthatsystem1ofshorterHRTtooklongertimetostartupandtheaccumulationofnitritelastedlongerthansystem2theremovalefficien-cyforammonia－nitrogenofsystem1wasworsethansystem2acriticalconcentrationofEPSwaspresentwhendiscussedtheinhibitionofEPSonnitrifyingactivitythecriticalcon-centrationgetbynitrificationratemethodwas10mg/L．KeywordsPAC－MFEPSnitrificationactivitynitrificationratemethodExtracellu-larpolymericsubstanceEPS．EPS．EPS1．EPS、、．EPS、、．EPS．EPSEPS．1#、2#PAC－MFHRTEPS．PAC－MFEPSEPS．EPS．11．1PAC－MFPAC－MF1．、、．．PACPAC－MFBAC．28min2min．1#33．3L/m2·h2h2#16．7L/m2·h4h．50g/L．10℃．1PAC－MF1．2、NH4Cl、1．1．311．8g/L．1NH4+—N/mg·L－16．5～8．5/mg·L－15～7UV254/cm－10．16～0．19NO2—N/mg·L－10．014/ntu10～15NH4+—N90%．EPS70℃1/5．1．4EPSNH4+—N2．3NH4+—N15～120min．30～120min．．I%=ΔC－ΔCEPSΔC×100%ΔC．I%EPS%．51LA、B、C、D、E1mLNH4ClEPS0、100、200、300、400mL400mL800mL．25g/LNH4+—N4．0mg/LEPSTOC3．5、6．8、10、12．9、15．5mg/L．0、0．5、1、1．5、2、2．5、3h20mLNH4+—NUV－2550．22．1·891·282、3NH4+—N、NO2－—N．217d1#16．9%2#NH4+—N27．8%．18d2#NH4+—N38NH4+—N85%．1#39dNH4+—N67dNH4+—N2．21mg/L69．66%．17NO2－—NNO2－—N．18～27d2#NO2－—NNO2－—N1．04mg/L28～32dNO2－—N32d0．077mg/L《》GB5749－20060．15mg/L．2#NO2－—N13d．2、32#38dNH4+—N、NO2－—N2#．1#18～25dNO2－—N39～45d1#NO2－—N45d1．02mg/L．55～66d1#NO2－—N66d0．145mg/L0．15mg/L．1#NO2－—N27d．2、31#67dNH4+—N、NO2－—N．1#．·991·21#2#1#NO2－—N2#2#NH4+—N1#．1#HRT4．10℃5－6．7．8．0N/m2．1#．1#．EPSEPS8EPS．4EPS．438d1#EPS2#1#EPS9．EPS———10．11．4EPS2．2EPS5EPSNH4+—N．5EPSEPSNH4+—NEPSNH4+—N．5ANH4+—NNH4+—N3h74．9%BNH4+—N3h66．6%A．C、D、ENH4+—N3h46．4%、27．4%、11．7%C、DA．ENH4+—NEPS．5NH4+—NI%EPS30～120min．6I%EPSTOCmg/L．6I%EPS6EPSI%．EPS6．8mg/L＜10mg/LI%10．12%227·002·28StatusandFutureC//Proc．ofComputinginHighEnergyPhysicsCHEP200334456－81．5FOSTERYONGZ．CloudComputingandGridComputing360－DegreeComparedJ．GridComputingEnvironmentsWork-shop200855835－55．6HAMILTON．“Cloudcomputing”seenasnextwavefortechnol-ogyinvestorsJ．FinancialPost2008271910－22．7LUISMVLUISRM．ABreakintheCloudsTowardacloudDefinitionJ．ACMSIGCOMMComputerCommunicationRe-view2009399150－55．8MICHAELAARMANDOF．AbovetheCloudsABerkeleyviewofCloudComputingJ．CloudComputing20094153578－90．9BODEHALSTEADDM．ThePortableBatchSchedulerandtheMauiScheduleronLinuxClustersC//4thAnnualLinuxShow-case＆Conference200017770－84．10ZHAOYRAICUFOSTER．ScientificWorkflowSystemsfor21stCenturyNewBottleorNewWineC//IEEEWork-shoponScientificWorkflows200865990－102．11FOSTERI．GlobusToolkitVersion4SoftwareforService－OrientedSystemsC//ConfonNetworkandParallelCompu-ting200637792－13．12DEANGHEMAWAT．MapReduceSimplifieddataprocessingonlargeclusterC//Procofthe6thSOSDI．BerkeleyUSENIXAssociation2004194137－150．13RALFL．Google’sMapReduceProgrammingmodel－RevisitedM．DataProgrammabilityTeam2007511023－46．14DEANGHEMAWAT．MapReduceSimplifiedDataProcess-ingonLargeClustersC//SixthSymposiumonOperatingSys-temDesignandImplementationOSDI042004253260－292．200EPS10mg/LI%32．14%EPS12．9mg/L＞10mg/LI%67．85%．10mg/LEPS．PAC－MF、PAC、、EPS12．EPSEPS．13311#HRT=2h2#NO2－—N27、13d67、38d．2HRT．3EPS．EPS．4EPS10mg/L．1FROLUNDB．ExtractionofextracellularpolymericsubstancesfromactivatedsludgeusingacationexchangeresinJ．WaterResearch19963081749－1758．2ARVINEDYREBORGSMENCKCetal．Amini－nitrifica-tiontestfortoxicityscreeningMlNNTOXJ．WaterResearchl9942892029－2031．3．J．2006284264－266．4．D．2005．5ZHANGXWANGZGUX．Simplecombinationofbiodegra-dationandcarbonadsorption—themechanismofthebiologicalactivatedcarbonprocessJ．WaterResearch1991252165－172．6．－J．200829187－91．7．J．1999698－99．8DECHOAW．Microbialbiofilmsinintertidalsystemsanover-viewJ．Cont．ShelfRes．2000201257－1273．9．J．200626162－66．10WINGENDERJFLEMMINGHC．AutoaggregationofMicro-organismsFloesandBiofilmsJ．Biotechnology1999863－86．11OKABESSATOHHLTOHTetal．Microbialecologyofsul-fatereducingbacteriainwastewaterbiofilmsanalyzedbymicro-electrodesandFISHtechniqueJ．Wat．Sci．Techno1．199939741－47．12．J．2006336112－116．13.A2/OHRTJ.2011274566－570578.·722·2