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WATERPURIFICATIONTECHNOLOGYVol.28,No.6,2009December25th,2009。A/A/O。,A/A/O。,A/A/O,,A/A/O,、,。A/A/O(A),,,:,,;,,,;,。1A/A/O1,2,2,3,4(1.,046000;2.,100124;3.,100044;4.,201103)A/A/O。,,。A/A/O,,。,,。,,。A/A/O:X703.1:A:1009-0177(2009)06-0039-06StrategyandApproachforEnergySavinginTotalProcedureofA/A/OWastewaterTreatmentProcessesLUXiao-bo1,WANGJia-wei1,GANYi-ping1,WANGHui-zhen3,FANYue-feng4(1.ChangzhiWaterworksCompany,Changzhi046000,China;2.BeijingDrainageGroup,Beijing100124,China;3.BeijingInstituteofCivilEngineeringandArchitecture,Beijing100044,China;4.ShanghaiHCSystem,Shanghai201103,China)AbstractA/A/Oprocessisappliedwidelyinmunicipalwastewatertreatmentplants,whichattributetoitsgoodperformancefornutrientremoval.However,thedesignparameterofA/A/Oprocessismainlyfromexperiencesbasedonstableflowrate.Sothedesignparameterisgreaterthanrequirementinfact,whichcontributestoenergywaste.Inthisstudy,basedonthecharacteristicofA/A/Oprocessthehydrauliclossofwholeflowlinewasinvestigated,andthedesignofliftingpumpstationwasoptimizedfirstly.Secondly,theaccuracycontrolschemefordissolvedoxygenandeffluentammonianitrogenwasproposedtosaveenergyofcentrifugalblowers,whichisthegreatestproportionofenergyconsumption.Atlast,theenergyconsumptionforreturningactivatedsludgeflowwasdecreasedwiththestatepointanalysis,whichimprovedtheoperationofsecondarysedimentationtankatthesametime.KeywordsA/A/Oprocessliftingpumpdissolvedoxygenaccuracycontrolstatepointreturnactivatedsludge[]2009-09-13[]:A2/O,2006BAC19B01[](1963-),,(,10/,A2O,),。[],E-mail:wangjiawei00@tsinghua.org.cn。!!!!!!!!!!!!!!!!!!!!2009,28(6):39-43,57WaterPurificationTechnology39--Vol.28,No.6,2009。,,,。A、、1。1,,59%()。23%。A/A/O,,。:、、、、、、。2,62%,、32%。,。2,,1:W=ρgQH1000η1·η2·t(1):W—,kW·h;ρ—,1000kg/m3;g—,9.81m/s2;Q—,m3/s;H—,m;η1—;η2—;t—,h。1,,H。,。,,1。A2008(2),1~6,,,0.0573kW·h/m3。,,。,,。1[1]Tab.1Designvaluesofhydrauliclossfordifferentfacilities/cm/cm10~25270~28010~25450~47520~4010~3040~5010~3050~6025~5010~2050~15022008Tab.2MonthlyenergyconsumptionandliftedwastewatervolumesfromJanuarytoJunein2008123456/(103kW·h-1)750.92700.01869.89860.27895.86895.25828.7/103m313197.1911974.0315121.4814967.3015631.7415504.1414587.9/(kW·h·m-3)0.05690.05850.05750.05750.05730.05770.05731Fig.1DistributionofenergyconsumptioninatypicalWWTP2Fig.2Distributionofenergyconsumptionforwastewatertreatmentsubsystem,,,.A/A/O40--WATERPURIFICATIONTECHNOLOGYVol.28,No.6,2009December25th,2009。,。,,,80%。,,。,。,,,。,A。,,,。,,。。ARTSHydraulics;,FLUENT。,40.536m,42.500m,1.964m,3。,1302×103kW·h,79.4(A0.61/kW·h)。3Fig.3Altitudechartofwaterlevelaccordingtooptimizedmodel,,,,。,A42,2008η150%。η77.3%,,,。A,,10%。11m,,11,11m。0.26m,2900.18m,0.5m。,A12m,(15m)3m。,,。362%,。,、、A/A/O,、。,、、、、。A/A/O,,。4。41--Vol.28,No.6,2009:“++”:、CODCr、、、、、、pH、,、。,,,。:,。,。:,,,。:,。,,,,,,,。,,,。,,,,。H(5),,,(6)。,,,,,G,1.62×104m3/h。H,G,1.08×104m3/h。,,33%。,,(7)。,62%,20.5%,魻nnerth10%~30%[2]。4Fig.4Sketchmapofcontrolsystemforsmartaeration,,,.A/A/O42--WATERPURIFICATIONTECHNOLOGYVol.28,No.6,2009December25th,20094,,,,,。,,,。,(8)、,,[3-4]。60%、100%,,。9,60%100%,。,100%,,60%,,,SS。,,SS12mg/L,,。5A/A/O,,、、。62%,、32%。A/A/O,,、。ARTSHydraulicsFLUENT(57)5HFig.5VariationofDOinHtankwithorwithoutcontrol6HGFig.6ComparisonofairflowrateinHtankwithorwithoutcontrol7Fig.7Relationbetweenopeningdegreeofoutletleafandelectricalcurrentofelectromotor8Fig.8Statepointofsecondarysedimentationtank9Fig.9Influenceofdifferentreturnsludgeratioonstatepoint43--WATERPURIFICATIONTECHNOLOGYVol.28,No.6,2009December25th,2009(43),1.964m。,,A3m。,DO---,。,20%~40%,,10%~20%。,SS,,。[1].().,:425-426.[2]T.B.魻nnerth,M.K.Nielsen,C.Stamer.Advancedcomputercontrolbasedonrealandsoftwaresensors[J].WaterScienceandTechnology,1996,33(1):237-245.[3]G.AEkama,PMarais.Assessingtheapplicabilityofthe1Dfluxtheorytofull-scalesecondarysettlingtankdesignwitha2Dhydrodynamicmodel[J].WaterResearch,2004,38(3):495-505.[4]JRMessenger,JCSmith,MJTetreault.TheuseofdynamicBNRandtwo-dimensionalclarifiermodelingtoinvestigatenitrogenremovalateasterntreatmentplant,Melbourne,Australia[J].WaterScienceandTechnology,39(6):89-96.5aFig.5Effectofinitialchlorophyll-aconcentrationonmagnetizationoperation,。a700μg/L,,27%。,a,。,,,a。3(1),60%,。(2),a.3.78m/s,360min,。(3)、,,,,。[1]PaerlHW..Assessingandmanagingnutrient-enhancedeutrophi-cationinestuarineandcoastalwaters:Interactiveeffectsofhu-manandclimaticperturbations[J].EcologicalEngineering,2006,26(1):40-54.[2],.[J].,2009,27(1):53-57.[3],,,.[J].,2007,30(7):98-100.[4],,,.[J],,2007,1(3):66-69.[5],,.[J],,2008,19(4):73-75.[6],,,.[J].,2006,25(1):55-57.[7]HolyszL,SzczesA,ChibowskiE.Effectsofastaticmagneticfieldonwaterandelectrolytesolutions[J].JournalofColloidandInterfaceScience,2007,316(2):996-1002.[8],,,.SBR[J].,2007,28(6):711-714.[9]RocherV,SiauqueJ-M,CabuilV,etal.Removaloforganicdyesbymagneticalginatebeads[J].WaterResearch,2008,42(4-5):1290-1298.[10]KitazawaK,IkezoeY,UetakeH,etal.Magneticfieldeffectsonwater,airandpowders[J],PhysicaB:CondensedMatter,2001,294-295:709-714.[11],.[J].(),2006,19(2):125-129.[12].()[M].:,2002.57--
本文标题:AAO工艺全流程节能途径与对策
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