城市污水处理厂活性污泥系统仙女虫的产生与防治万琼

檲檲檲檲檲檲檲檲檲檲檲檲檲檲檲檲檲檲檲檲檲檲殘殘殘殘1213111．7100552．7100543．710018。116mg/LCOD、。、、2252mg/LSS20mg/L。。A2/OX703A1000－4602201115－0001－04ProductionPreventionandCureofNaiselinguisinActivatedSludgeSystemofWWTPWANQiong12ANShao-feng1LUHai-feng3SHAOJun-feng1PENGDang-cong11．SchoolofEnvironmentalandMunicipalEngineeringXi’anUniversityofArchitectureandTechnologyXi’an710055China2．CollegeofArchitectureandCivilEngineeringXi’anUniversityofScienceandTechnologyXi’an710054China3．Xi’anWastewaterTreatmentCo．Ltd．Xi’an710018ChinaAbstractThecountermeasuresforpreventionandcureofNaiselinguisinactivatedsludgesystemofaWWTPwerestudied．ThephagocytosisofNaiselinguisdestroystheflocstructuresofloatingsludgeappearsonthesurfaceofsecondarysedimentationtanktheSSintheeffluentare116mg/LtheMLSSaresharplyreducedandtheremovalratesofCODNandParedecreased．SomemeasuresaretakenincludingremovingthefloatingsludgeinsecondarysedimentationtankshortingSRTreducingconcen-trationofDOinaerationtankandaddingtheprimarysludge．AftertakingthesemeasuresNaiselinguisisdisappearedandtheMLSSareincreasedto2252mg/LgraduallytheSSineffluentarereducedtolessthan20mg/Landthesystemcomesbacktonormal．Improvingtheorganicloadingbyaddingpri-marysludgeisaneffectivewaytopreventandcureNaiselinguisinWWTP．KeywordsA2/OprocessNaiselinguissludgeretentiontimeSRTMLSS2009ZX07317－009、1～3。·1·271520118CHINAWATER＆WASTEWATERVol．27No．15Aug．2011。1～8SS。A2/OCOD。11.1A2/O9．5h、2．0、3．2、4．3h15d。MLSS1700～3000mg/L70%～120%30%～50%17～24℃pH6．5～7．5。1.2A2/O1。1Tab．1QualityofeffluentfromprimarysedimentationtankinWWTPmg·L－1TCODSCODTPNH+4－N220～290100～2003．6～4．733～481.3COD、NH+4－N、NO－3－N、PO3－4－P、SSVSS9。22.1A2/O1700～3000mg/L《》B。。30～40/mL1～2/mL。SS116mg/LMLSS1748mg/L1168mg/LSV40%19%。。。。2.2①②③。①15d12d②3～4mg/L2～3mg/L③。40d。①。②。③0．37kgCOD/kgMLSS·d0．67kgCOD/kgMLSS·d0．5～2mg/L12d920mg/LMLSS2252mg/L。2.32.3.1MLSSSV1MLSSSV。1SS116mg/LSVI228mL/g162mL/g24。。·2·2715．watergasheat．com。20SV。。2～3mg/L。289dMLSS2252mg/L。1MLSSSVFig．1MLSSandSVprofilesinaerationzoneduringpreventionandcureofNaiselinguis2.3.2SCODSCOD10～45mg/L30～40/mLMLSS1168mg/LSCOD45mg/LMLSS2252mg/LSCOD39．4mg/L。MLSS0．45mg/L1．45mg/L74%44%MLSS1．45mg/L0．50mg/L85%2。2Fig．2ProfileofphosphateconcentrationduringpreventionandcureofNaiselinguisSCODMLSS0．37kgCOD/kgMLSS·d0．67kgCOD/kgMLSS·dCOD。0．29kgCOD/kgMLSS·d。COD2。2.3.30．5mg/L6mg/L99．3%84．4%3。MLSS2252mg/L80%。15d1mg/L。3Fig．3ProfilesofNH+4－NandNO－3－NconcentrationsduringpreventionandcureofNaiselinguisNO－3－N17．8mg/L32．2mg/LMLSS2252mg/LNO－3－N5．5mg/L。15dNO－3－N30mg/L。3①8·3·．watergasheat．com27152AdavSSLeeDJShowKYetal．AerobicgranularsludgeRecentadvancesJ．BiotechnolAdv2008265411－423．3NiBJXieWMLiuSGetal．Granulationofactivatedsludgeinapilot-scalesequencingbatchreactorforthetreatmentoflow-strengthmunicipalwastewaterJ．WaterRes2009433751－761．4DeKreukMKvanLoosdrechtMCM．Formationofaer-obicgranuleswithdomesticsewageJ．JEnvironEng20061326694－697．5．M．1989．6MartinsAMKarahanOvanLoosdrechtMCM．EffectofpolymericsubstrateonsludgesettleabilityJ．WaterRes2011451263－273．7DeKreukMKKishidaNTsunedaSetal．BehaviorofpolymericsubstratesinanaerobicgranularsludgesystemJ．WaterRes201044205929－5938．8．J．20093072030－2034．9KishidaNKimJuhyunTsunedaSetal．Anaerobic/ox-ic/anoxicgranularsludgeprocessasaneffectivenutrientremovalprocessutilizingdenitrifyingpolyphosphate-accu-mulatingorganismsJ．WaterRes200640122303－2310．1976－。[e-mail]櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵2011－01－163SSCOD、。②、。③。1RensinkJHRulkensWH．UsingmetazoatoreducesludgeproductionJ．WaterSciTechnol19973611171－179．2．J．200526176－83．3RatsakCH．EffectsofNaiselinguisontheperformanceofanactivatedsludgeplantJ．Hydrobiologia20014631/3217－222．4．J．2005256803－808．5RatsakCH．Sludgereductionbypredatoryactivityofa-quaticoligochaetesinwastewatertreatmentplantsscienceorfictionAreviewJ．Hydrobiologia20065649197－211．6GhyootWVerstraeteW．Reducedsludgeproductioninatwo-stagemembrane-assistedbioreactorJ．WaterRes2000341205－215．7LuxmyBSKuboTYamamotoK．Sludgereductionpo-tentialofmetazoainmembranebioreactorsJ．WaterSciTechnol20014410197－202．8EikelboomDH．ProcessControlofActivatedSludgePlantsbyMicroscopicInvestigationM．UKIWAPub-lishing2000．9．4M．2002．1977－。[e-mail]2011－03－24·8·2715．watergasheat．com