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〔〕、、,。,,。〔〕；；；；：X703.1：B：1004－4345（2015）04－0062-03CalculationonAirSupplyQuantityofSurfaceAeratorforSewageTreatmentPlantofHigh-altitudeCityLIUYi(ChinaNerinEngineeringCo.,Ltd.,Nanchang,Jiangxi330031,China)AbstractDuetolowairtemperatureandairpressure,lowconcentrationofsaturateddissolvedoxygeninwaterandlowoxygencontentinair,calculationonairsupplyquantityofsewagetreatmentplanthasacertainparticularityinhigh-altitudearea.Incombinationwithdesignpracticeofoxidationditchprocessinsewagetreatmentplantofahigh-altitudecity,thepapersummarizescalculationmethodofairsupplyquantityofsurfaceaeratorinhigh-altitudeareaandputsforwardcalculationpointsandsomeproblemsneedstobepaid.Keywordshigh-altitudearea;oxidationditch;surfaceaerator;oxygentransferrate;calculationonairsupplyquantity（,330031）：2014-08-01：（1979—）,,。,。,,（）,,,,,。1。,,（DO）,（）；,,。,,,。,、,4：；,；；、、。：1）。,,,；2）。,,,、；3）。。364201584。,,,,。、K,、、。2,,,,KLa[1]。(kgO2/h)1、20℃,DO,(StandardOxygenRate),SOR。,；；DO,2mg/L。、KLa,。（ActualOxygenRate）,AOR。,,,。N0SOR,NAOR,[1]：N＝αN0βCSW-C0Cs×1.024（T－20）（1）：αKLawKLa,KLaw/KLa,0.8～0.85；β,0.9～0.97；CSW（mg/L）,T,Pa；C0DO,2mg/L；Cs,9.17mg/L；T,5～30℃；1.024。3、、,。3.1,,,KLa；。KLa[2]：KLa（T）＝KLa（20）×1.024（T－20）（2）:KLa（T）KLa（20）T℃20℃；T,℃。,,,Cs。,Cs。,[3]：Cs（760，T）＝477.8T+32.26（3）:Cs（760，T）,T℃Cs,mg/L；T,℃。1（）。1[4],KLa,,SOR；Cs,,SOR。,。,DO2mg/L,SOR,。3.2,Cs,,。CsP：CSW（P，T）＝Cs（760，T）×θ=Cs（760，T）Pa1.013（4）:CSW（P，T）Pa,T℃Cs,mg/L；Cs（760,T）,T℃T/℃Cs/(mg/L)T/℃Cs/(mg/L)T/℃Cs/(mg/L)01234567891014.6214.2313.8413.4813.1312.8012.4812.1711.8711.5911.33111213141516171819202111.0810.8310.6010.3710.159.959.749.549.359.178.992223242526272829308.838.638.538.388.228.077.927.777.6363··36Cs,mg/L；θ；Pa,105Pa；T,℃。,,,：Pa=1.013×e（－g×M×hR×(273.15+T)×1000）（5）:Pa,105Pa；g,m/s2；M,28.95；R,8.314J/(K·mol)；T,℃。3.3,AOR(1)SOR,,,,。1、20℃,1.22kg/m3(20℃),21％,0.256kg/m3；,,,21％,。,：ρ=Pa×MR×（273.15+T）（6）:ρ,kg/m3；Pa,105Pa；M,28.95；R,0.082L·atm/(K·mol)；T,℃。（）,,。,3000m0m69%,。(1)SORδ,,,,。4,。2200～2600m,2240m,10.5～22.8℃,24.8℃,25℃,20℃。,ATV（AOR）1180kgO2/h,SOR(、)：1),(5)0.78×105Pa；2）,(3)(4)CSW7.06mg/L；3)AOR1180kgO2/h,(1),α0.8,β0.9,SOR3107kgO2/h。4),(6)0.924kg/m3,1.22kg/m3,75.7%。5)3SOR3107kgO2/h,75.7%,4104kgO2/h,。,0m,,2200kgO2/h,,。5,、,。,,、、。,。[1].：[M].2.：,2004.[2]，，.：[M].2.：,2000.[3].[J].,2012,38（2）：41-45.[4].[J].,1999,12（2）：54-55.64··