搜索
MBBＲ11121．2665552．030002A2/O－MBBＲA“”SPＲ－2《》CJ/T461—2014。、AⅣCOD、、TNTP19．66、0．87、11．37、0．24mg/L93．1%、97．9%、76．8%、93．3%。SND。79%SNDTN。MBBＲ、、。MBBＲATU992A1000－4602201815－0006－06ApplicationofMBBＲProcesstoUpgradingandＲeconstructionofWWTPinShanxiProvinceWUDi1ZHOUJia-zhong1ZHENGZhi-jia1GUANMan21．QingdaoSpringWaterTreatmentCo．Ltd．Qingdao266555China2．TaiyuanMunicipalEngineeringDesign＆ＲesearchInstituteTaiyuan030002ChinaAbstractAwastewatertreatmentplantWWTPinShanxiProvincewasupgradedandretrofittedintheabsenceofnewlandaddedwheremodifiedA2/O－MBBＲprocesswasusedtoensuretheeffluentqualitystablymeetingthefirstlevelAstandardofDischargeStandardofPollutantsforMunicipalWastewaterTreatmentPlantsGB18918－2002．Usingtheconceptof“mosaic”theanaerobiczonewasdividedintopre-anoxicandanaerobiczonesandtheaerobiczonewasdividedintoanoxicandaerobiczones．TheSPＲ-2suspendedfillerswereaddedintoaerobiczonewhichmetthestandardofHighDensi-tyPolyethyleneSuspendedCarrierforWaterTreatmentCJ/T461－2014．AfterupgradingtheWWTPsuccessivelyexperiencedthelowtemperatureinwinterandinfluentqualityfluctuationbuttheeffluentqualitywasstillsuperiortolevelAstandardevensomeindicatorshadreachedclassⅣofEnvironmentalQualityStandardsforSurfaceWater．TheaverageconcentrationsofCODNH3－NTNandTPineffluentwere19．66mg/L0．87mg/L11．37mg/L0．24mg/Landtheaverageremovalrateswere93．1%·6·341520188CHINAWATEＲ＆WASTEWATEＲVol．34No．15Aug．201897．9%76．8%and93．3%respectivelyshowingagoodlowtemperatureresistanceimpactresistanceandsynchronizedenhancednitrogenandphosphorusremoval．Thetotalenergyconsumptiondidnotchangesubstantiallyafterupgrading．TheamountofcarbonsourceaddedwasonlyhalfofthedesignvaluethroughthereasonableprocesslayoutandappearanceofSNDphenomenoninaerobiczone．High-throughputsequencingandbiomassmeasurementindicatedthatthesludge－biofilmcompositeprocesshadformedbyaddingthefillerswhichoptimizedcolonydistributionandincreasedthediversityofflorainthesystem．Suspendedfillerplayedanimportantroleintheenrichmentofnitrifyingbacteriaandthecontributionofthefillerstonitrificationaccountedfor79%inwinter．Thepresenceofaamountofdeni-trifyingbacteriaonthesuspendedcarrierprovidedamicroscopicguaranteefortheSNDphenomenonef-fectivelyreducingtheconsumptionofcarbonsourceandincreasingtheTNremoval．MBBＲprocesshastheadvantagesoflesslandoccupationhighloadstrongshockloadingresistancewhichissuitableforupgradingandretrofittingofWWTP．KeywordsupgradingandreconstructionMBBＲfirstlevelAstandardNitrospiraNi-trosomonasAⅣ。、、、。、MBBＲ。2008MBBＲ1。10MBBＲ800×104m3/d、、。MBBＲ“”MBBＲ。、。MBBＲA2/O－MBBＲ。16×104m3/d。A/O10℃《》GB18918—2002。2016A。CODACODTN50%。A①。A。②TN。A/OTN50%TN77%。③。。④。。A2/O、JSBC、MBBＲ、、、。MBBＲ、、、MBBＲ。①1。·7·．watergasheat．comMBBＲ34151Tab．1Designwaterqualityofinfluentandeffluentmg·L－1CODBOD5NH3－NTNTPSS53015051654．5460≤50≤10≤58≤15≤0．5≤10②1A2/O－MBBＲ。1Fig．1Schematicofbio-reactorbeforeandafterupgrading③10%～30%70%～90%。④SPＲ－225±0．5mm10±1mm620m2/m3《》CJ/T461—2014。22.1CODCOD2。COD448mg/LCOD30mg/L91．6%COD310mg/LCOD19．66mg/L93．1%A。6000mg/LCOD。MBBＲHＲTCOD。COD。、、COD、2。2CODFig．2CODremovalefficiencyofbio-reactorbeforeandafterupgrading2.2NH3－NNH3－N39．58mg/LNH3－N4．83mg/L87．8%NH3－N40．21mg/LNH3－N0．87mg/L1．5mg/L97．9%。AⅣ。。·8·3415．watergasheat．com。8～10℃A。315℃5℃。。6～8℃。、MLSS4000mg/L3h61mg/L54mg/L6h45mg/L0．064kg/m3·dMBBＲ50%3h62mg/L37mg/L6h25mg/L0．202kg/m3·d3．15。4MBBＲ10℃0．4kg/m3·d。513．4℃A/O－MBBＲ。4～6℃0．15～0．20kg/m3·d。。2.3TNTN54．59mg/LTN17．98mg/L66．3%TN50．58mg/LTN11．37mg/L76．8%A3。3TNFig．3TNremovalefficiencyofbio-reactorafterupgradingCODBOD5COD0．2～0．3BOD5/TN2．43～3．66TNCOD。6mg/LTN50mg/L。50%TN。6TN3～6mg/LTN。SNDTN7。2.4TPAOCTP3．72mg/LTP0．52mg/L86．0%TP3．61mg/LTP0．24mg/L93．3%A4。4TPFig．4TPremovalefficiencyofbio-reactorafterupgradingVFATP8。TP10．8mg/LTP3。MBBＲ·9·．watergasheat．comMBBＲ3415。3。0．3752kW·h/m3A0．3808kW·h/m3。。4MBBＲSND201712A。5．23g/LVSS/SS=0．4512．6g/m2VSS/SS=0．86。3．8×107g2．8×107g。21．36。295＜0．01%21323382。30d。2Tab．2DiversityindexofsludgeandfillerShannonChao1CoverageSimpson353477．16786010．790．0036479417．14749590．830．0046GP10、GP6、GP4、Ni-trosomonas、Nitrospira。GP10、GP6、GP45。NitrosomonasAOB5．16%0．8%NitrospiraNOB6．54%1．52%。Nitrospira。NitrospiraAOBNOB9～11。11．7%2．3%。5Fig．5AnalysisofbacteriainactivatedsludgeandsuspendedcarrierbiofilmＲhodobacter、Hy-phomicrobium、Terrimonas、Flavobacterium0．85%、0．81%、0．55%、0．54%5．89%Thauera、Aquabacterium、Arcobacter2．45%、1．89%、1．25%12．5%。SND。79%21%MBBＲ。5①MBBＲCOD、、TNTP19．66、0．87、11．370．24mg/LAⅣ。②MBBＲSND。③79%SND·01·3415．watergasheat．comTN。④MBBＲ、A。1．MBBＲJ．201026271－73．WangZhutianYeLiangZhangXinyanetal．Applica-tionofMBBＲprocesstoupgradingandreconstructionofWWTPJ．ChinaWater＆Wastewater201026271－73inChinese．2．MBBＲⅣJ．2017331493－98．YangYuxingWuDiSongMeiqinetal．ApplicationofnewMBBＲinWWTPupgradingtomeetclassⅣsurfacewaterstandardJ．ChinaWater＆Wastewater2017331493－98inChinese．3MauretMPaulionEPeutch-CostesEetal．Applicationofexperimentalresearchmethodologytothestudyofni-trificationinmixedcultureJ．WaterSciTechnol1996341/2245－252．4．MBBＲJ．200824993－96．ShaoShuhaiCuiChongweiZhangAietal．Pilot-scaleresearchontreatmentofmunicipalwastewaterbytwo-stageMBBＲatlowtemperatureJ