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37520185JournalofMianyangTeachers＇CollegeVol．37No．5May．20182018－03－0416ZB0311XYCXXM2017071991－.*1973－.DOI10．16276/j．cnki．cn51－1670/g．2018．05．0091212223*1．6210062．6100413．621006、.A2O.A2OX522X523A1672-612X201805-0035-0720021227《》GB18918—2002200371《》GB8978—1996、.12.、60%～90%3.A2O.A2O4..A2O.10．75/2/A2O.《》GB18819－2002A.10500/19h16d3500mg/L300%70%0．027kgCOD/kgMLSS/d.1·53·1A2OFig．1A2Oprocessandsamplingpoints1．11、Tab．1waterqualityparametersforinletandeffluentofsewageplantmg/LCOD60．0－87．912．0－21．112．1－25．01．2－2．310．2－13．90．1－0．87．2－13．70．1－0．31COD《》GB18918—2002A..40%.5C/N2．86BOD/COD45%BOD/TN1．78.22．1ElectrolyticrespirometerBI－2000CODpH.2．2、、、、、、、、、、、、、、、45%KOH、1mol/LH2SO4、.2．32．3．1COD、NH3－N、NO3—－N、TN、TP、MLSS6.2．3．2·63·1bH、、7.XPXSXSSsSS8.9.dXHdt=－bH*XH+SSKS+SS*uH*XH1XH—CODuH—XS.SSXSdSsdt=dXsdt=bH1－fpXH2fP—XP0．08.XSSSSSdSsdt=dXsdt3dXHdt=bHYH1－fp－1*XH41nrt=1n1－f＇pb＇HXH0－b＇H*t5b＇HbHb＇HYHfp.330minATU.lnOUＲtu＇HuH.2YHSSXS.YH..CO2H2O.CODYH1011.YH=ΔCODΔCOD=ΔCOD－∫rtdtΔCOD6ΔCOD=COD1－COD27COD1CODCOD2CODΔCODCODmg/L.A2/O·73·COD0．2mg/LCODCOD1.BI－2000.1dBI－2000∫rtdtCODCOD2.YHYH=ΔCODΔCOD=ΔCOD－∫rtdtΔCODΔCOD=COD1－COD233．1..PhCOD.3．1．12COD.3．1．2COD3COD.CODCODCOD.DCOD.2Fig．2thevariationofdissolvedoxygenalongtherange3CODFig．3CODchangealongthepath3．1．3489．6%40%..3．1．35.COD.·83·4Fig．4thevariationofnitrogenconcentrationalongtherange5Fig．5thevariationoftotalphosphorusalongthepath3．2bHYH6Fig．6themeasuringcurveofthetraditionalattenuationcoefficient·93·2Tab．2resultsofmicrobialattenuationcoefficientmeasurementb＇H/d－1bH/d－1bH11．253．1221．694．2031．253．110．6241．443．581．413．503Tab．3resultsofyieldcoefficientofheterotrophicbacteriameasurementYH10．6720．6630．610．6740．660．653．5d－10．62d－1.0．650．67.COD.4A2O.1.240%.346－72..5.4300%COD.51∶1∶4.CODCOD.6.5...·04·1．J．200422281287．2．J．200622226－29．3．A2OJ20091335－38．4．A2/OJ．200332922－26．5．J．1998263124－126．6．M．2002．7．A2/OD．2010．8SpanjersH．TakacsI．BrouwerH．Directparameterextractionfromresprirogramsforwaste－waterandbiomasscharacterizationJ．Wat．Sci．Tech．1999394137－145．9HenzeM．ActivatedsludgemodelNo．1．IAWPＲCscientificandtechnicalreportNo．1．M．LondonIAWPＲC1987．10OliveiraC．S．OrdazA．FerreiraE．C．etal．Insitupulserespirometricmethodsfortheestimationofkineticandstoichiometricpa-rametersinaerobicmicrobialcommunities．BiochemicalEngineeringJournal201158－5912－19．11．CODD．2006．ProblemDiagnosisforNitrogenＲemovalataWWTPGAOXingdongSUNYanfengTANZhouliangLVWenlinLUOYajun1．SchoolofＲesourcesandEnvironmentMianyangTeachers＇CollegeMianyangSichuan6210062．ChengduInstituteofBiologyChineseAcademyofsciencesChengduSichuan6100413．OfficeofEducationalAdministrationofMianyangTeachers＇CollegeMianyangSichuan621000AbstractWiththecontinuousimprovementofthesewagedischargestandardthesewagetreatmentplantneedstotransformthetreatmentprocesstomeettherequirementsofemissionstandards．Processoptimizationisalsoneededtoreducerunningcostssaveinfrastructurecostsandrunningcosts．ThisresearchtakestheA2Oprocessinoneofthemunicipalsewagetreatmentplantasanexampleandonthebasisofthemeasurementontheprocessa-longwaterqualityparametersandsludgekineticparameterstodiagnosetheproblemsofthesewagetreatmentplantandgivethesuggestions．Itshowsthatthemainreasonofpooreffectsondeoxygenationanddephosphorizatonislackingofcarbon．Accordingtoaseriesofanalysisthisarticleproposesthisplantincreasingtheexternalcarbonsourceandimprovingtheutilizationrateofdenitrificationcarbonsourcetoimprovethesystemdenitrificationeffi-ciency．KeywordsA2Oprocessphosphorusandnitrogenremovalproblemdiagnosiskineticparameter·14·