分段进水多级AO工艺去除总氮影响因素分析魏永军

431820159GuangzhouChemicalIndustryVol.43No.18Sep.2015A/O12222212130062222004。A/OA/O。A/O、、、、、C/NA/O。A/OTQ914.1B1001－96772015018－0126－03AnalysisofInfluencingFactorsinＲemovalofTotalNitrogenwithMultistageA/OProcessBasedonStep－feedWEIYong－jun1ZHANGBin－bin2WANGKai－chun2LIXue－zi2TIANFeng－rong2YANGZhi－lin21JiangsuProvinceCenterforEVScienceandEngineeringJiangsuNanjing2130062ChinaBluestarLehighEngineeringCorporationJiangsuLianyungang222004ChinaAbstractWiththeincreasinglyseriouseutrophicationproblemTotalnitrogenindexwasincludedintheenvironmentalprotectionstandardcontrolindicators.ThetraditionalA/Oprocessfortotalnitrogenremovalefficiencywaslow.ThenewtrainofthoughtwasprovidedinMultistageA/Oprocessbasedonstep－feed.ThemechanismofMultistageA/Oprocessbasedonstep－feedwerebrieflydescribedmeanwhilesomeimportantfactorsregardingtheoperationanddesignoftheprocesssuchasprimaryeffluentflowsplittingdissolvedoxygenreturnedactivated－sludgerateshydraulicretentiontimeanaerobiczonetoaerobiczonevolumetricratioandtheratioofC/Nwerediscussed.Thefuturedevelopingdirectionsofthistechnologywereforecastedthetechnicalsupportwasprovidedintheremovaloftotalnitrogeninwastewater.Keywordsstep－feedmultistageA/Ototalnitrogeninfluencingfactors、2008《》。A/OA－A/O、O－A/O、A1－A2/O1－O2。1A/OA/OA/O。A/O。A/O、、、、、C/N。1A/OA/O2A/O1。1A/OFig.1SchematicdiagramofMultistageA/OProcessBasedonStep－Feed4318A/O127。2A/OA/O。1。。。30.2∶0.3∶0.3∶0.2。Kitaya4A/O35%66%。54∶3∶2∶1、。A/O。、。6A/OA/O。7。2A/O/。。8DOO/ADO0.8～2.4mg/L99%DO0.8～1.2mg/LTNTP74.81%71.41%。9DO0.5mg/L98%。10DODO0.26～2.5mg/L95%COD＞90%。Larrea11DO。122.5mg/L1.0mg/L10%。3C/NA/OC/NA/O。C/N。NOx－N13。BOD5/TKN4～6。A/O。14C/N6、8.2510.5COD330mg/L、80.1%、79.8%81.3%C/N10.5、1317.5NH3－N38mg/L2.5、3492.4%、93.8%96.4%。4A/OMLSS。Daigger15A/OMLSSA/O25%～70%。Norbert16A/OMLSS27%。MLSS。MLSS0.25～0.75。170.5。5A/O、。B/C＞0.33～4、B/C＜0.3、。、、18。19A/O、A/O。6HＲTA/O、COD、。Oliver20A/OA/O20%。Larrea11HＲT、。211.2m3A/O7.5hCOD、NH+4－NTN93%95.8%68.5%。3、A/O128201591A/O。。2、MLSS。MLSS。MLSS。3、。、。41FISHA/O。TN、NO2－N、NO3－N、DO、OＲP2A/O。。3V/VC/NV/V=fC/ND－N。4A/OA/OCODMBＲ、MBBＲ。1NadjaHvalaMarioZecMilenkoＲosetal．DesignofasequencingbatchreactorsequencewithaninputloadpartitioninaenvironmentJ．WaterEnvironmentＲesearch2001733－4146－154．2．A/OJ．20032648－11．3．J．200824518－26．4KitayaMHasunoTKitayamanM．OperationconditionsforstepdenitrifycationmethodanditseffectA．ProcofJapanSewerageWorkAssociationC．JapanTokyo1994．5．A/OD．2006．6．A/OJ．20091389－92．7．J．200622211－5．8．DOAn－O/An－MBＲJ．2011279105－109．9．J．2006263293－297．10．DOJ．200821239－12．11LarreaL．LarreaA．AyesaE．etal．DevelopmentandverificationofdesignandoperationcriteriaforthestepfeedprocesswithnitrogenremovalJ．Wat．Sci．Tech．2001431261－268．12．J．200671083－88．13OuyangC．F．ChouYJ．Optimizationofenhancedbiologicalwastewatertreatmentprocessesusingastep－feedapproach．Wat．Sci．Tech．2001433295－304．14．J．2007394594－599．15DaiggerG．T．ParkerD．S．EnhancingnitrificationinNorthAmericanactivatedsludgeplantsJ．Wat．Sci．Tech．200041997－105．16NorbertJ．HarroB．NutrientupgradestomeetEuropeanrequirements．IWAYearbook2003753－55．17．A/OJ．20113719－14．18．J．200345314－17．19．A/OD．2005．20HaoOliverHuangJason．Alternatingaerobic－anoxicprocessfornitrogenremovalprocessevaluationJ．WaterEnvironmentＲesearch199668183．21．A/OJ．200619375－80．