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35320039()J.XianUniv.ofArch.&Tech.(NaturalScienceEdition)Vol.35No.3Sep.20031,1,2,2,2,2(1.,710077;2.,710055):,.,.:;;;KLa;:X703:A:1006-7930(2003)03-0268-04PresentsituationandresearchontheaerationinaerobicbiologicalwastewatertreatmentLIHui-jun1,YUEXiao-qin1,WANGWei-wei2,WANGTao2,WANGLei2,YANGYong-zhe2(1.XianWastewaterTreatmentPlant,Xian,710077China;2.SchoolofEnvironmentalandMunicipalEngineering,XianUniversityofArchitecturalScienceandTechnology,Xian710055,China)Abstract:Inactivatedsludgetreatmentprocess,aerationefficiencydeterminesthetreatmentresultandenergyconsump-tion.Inthisarticle,theauthorpresentsareviewontheprogresses,situationandproblemsofexternalandinternalaer-ationtechnology.Furthermore,theauthorsintroducedtheprogressofaerationtechnology,significanceofbubblelessaerationandtheproblemstoberesearched.Keywords:aeration;energyconsumption;oxygentransferefficiency;volumetricmasstransfercoefficientKLa;bubble-lessaeration1912,,,.18000,84%;3000,;630,2000,98%;,1540,91%[1].,..,..,6080%(WPCF,1988)[2].,.,.,,,,,:2003-04-23:(02JK137):(1965-),,,,.,.11.1..,,:dCO/dt=KLa(CSO-Co),KLa,.KLa.,KLa.CSOCS,.1.2:(1),;(2),.1.1[3][4]mg/Lh/%/kgO2/kWh4060203010201030615481.22.01.01.60.61.20.71.40.61.00.30.94012010251.22.40.71.410901.22.40.71.31.22.40.71.31.22.40.71.3,20%.10104m3/d,1.0kgO2/kWh,20%,0.58/kWh().BOD5200mg/L,BOD5160mg/L,BOD520mg/L,1692/h,0.406.5%,0.325,296.,,.2,.17,,.2.2[5],,,,Groves2165,.3:.:EA10.9%4.9%;,EA3358%[5].3.,:,;KLa.,.3.1.,,,,.,:(1),;(2),;(3),,;(4),,[6].3.3[3],[7](mg/L)61012(h)1236MLSS(mg/L)60001000015004000MLVSS(mg/L)390065009002600(kgBOD5/m3d)1.62.70.51.0/(kgBOD5/kgMLVSS)0.40.80.30.6(%)205030100(200)(mg/L)2000040000500015000(kgVSS/kgBOD5)0.300.450.50.753050100150,.,.,.,,,pH,,.pH.3.2,,,EA,.Groves,EA122%,,EA33%.,3.5EA19%.,,.,EA,[5].3.3,,KLa,;,.,,.4.,,.,()35.,,.,.14.1,.,,,1.1992,AhemdSemmens,[8].4.2:(1),.,30%.,,,..,,,100%.(2),.,,,,,.,.,MPankhania,COD8.94kg/m3d,36min,COD86%[9].(3).,,,,..4.3,,,:(1),.,.,,.,,.,,.VanderSemmens40dyn/cm,30%[8].(2),.,,.,,.Voss,0.1m,.,,,91,20,.10,10,[2].,.,.Voss3:VVVV,,410Kpa,[8],.,.,,.5,.KLa;,,,,,,,,,,.[1],.[M].:,1993.[2]WeissPT,OakleyBT,GulliverJS,SemmensMJ.Bubblelessfiberaerationforsurfacewaters[J].EnvironmentEngineering.1996(6):631-639.[3],.()[M].:,1999.[4]G,[M].:,1986.[5]GrovesKP,DaiggerGT,SimpkinTJ,RedmonDT,EwingL.Evaluationofoxygentransferefficiencyandalphafactoronavarietyofdiffusedaerationsystem[J].WaterEnvironmentResearch.1992,64(5):691-698.[6]Semmensetal.Ananalysisofbubbleformationusingmicroporoushollowfibermembranes[J].WaterEnviron-mentResearch.1999,3:307-315.[7].[M].:,1986.[8]ossMA,AhmedT,SemmensMJ.Long-Termperformanceofparallel-flow,bubbleless,hollow-fiber-membraneaerators[J].WaterPollutionControlFederation.1999:23-30.[9]PankhaniaM,StephensonT,SemmensMJ.Hollowfiberbioreactorforwastewatertreatmentusingbubblelessmembraneaeration[J]WaterResearch1994(6):22332236