*邓荣森, 王左良, 王 涛(, 400045):就重庆市某污水工程BT项目设计实例展开分析,结合国内外跌水曝气系统在实际工程上的运用,探讨在目前国情下,引入跌水曝气系统的可行性,并从生态环境保护和污水处理厂修建投资的经济性两个方面介绍跌水曝气系统特点,以及在氧化沟和其他污水处理工艺上的运用等。最后得出,跌水曝气系统可以作为一种独立的曝气方式设计使用,是适合中国中小型城镇水环境控制的污水处理改进技术;采用跌水曝气系统,可以使污水处理厂的运行费用得到降低,减少运行成本;可以很好的适应丘陵、山区的地形特点,进行因地制宜的设计,减少工程造价和人为对生态环境的破坏。:跌水曝气;成本;氧化沟;技术改造;生态环境保护:TU992.3 :A :1006-7329(2007)01-0078-03DiscussionoftheApplicationandForegroundofFallingWaterAerationwiththeProcessofSewageTreatmentDENGRong-sen,WANGZuo-liang,WANGTao(KeyLaboratoryoftheThreeGorgesReservoirRegion'sEco-EnvironmentofChongqingUniversity,MinistryofEducation,CollegeofUrbanConstructionandEnvironmentalEngineering,Chongqing400045,P.R.China)Abstract:TheengineeringdesignofsewagetreatmentplantfortheChongqingcity,P.R.Chinaisanalyzedinthispa-per.ConsideringthesituationofChinaandotherprojects,thecharacteristicsoffallingwaterreactorfortheenvironmentprotectionprojectandeconomyofinvestmentisintroduced;theapplicationandforegroundoffallingwateraerationintheprocessofsewagetreatmentisdiscussed,suchasOxidation-ditch,SBR,andsoon.Theconclusionindicatedthatthefallingwateraerationcanbedesignedandusedasanindependentaeration,and,itisanupgradedtechnologyofsewagetreatmentwhichisadaptiveforcitywaterenvironmentcontrolinmiddleandsmalltownsinChina.Thefallingwateraer-ationmayreducerunningcostofthesewagetreatmentplant,isadaptiveforfoothillandthemountainousareas,andre-ducesprojectinvestmentandenvironmentsdamage.Keywords:fallingwatersaeration;cost;Oxidationditch;rebuildingoftechnology;environmentprotectionproject ,,,。,10。,3000,。,,,,,,1/3,。,、、、。,,、,。,,。第29卷 第1期2007年2月 重庆建筑大学学报JournalofChongqingJianzhuUniversity Vo.l29 No.1Feb.2007*:2006-06-21:(20020611025):(1938-),,,,,、。1 200411,(BT),,,。1。1 ,,,(2)。,(18m),,,,,,,COD,BOD,N,P。:(1)(4m),;(2),,;(3)。2 ,,,;,,。,,4。,,,,。,,。,,,。2 :(1);(2)。。。,。,2090,HideoNaka-soneMasuoOzaki,,,(1)。1 BOD/mgL-1COD/mgL-1SS/mgL-1NH+4-N/mgL-1NO-2-N/mgL-1T-N/mgL-1T-P/mgL-1268.870.7105.718.260.3729.085.568.98.64.90.922.535.151.5096.7%87.8%95.4%95.0%—82.3%73.0%:(1)h=53cm,0.2m3/s;(2)1990HideoNakasoneMasuoOzak。3,,,。,,;,。3 4 SBR。SBR,。,。SBR,SBR,SBR:—————————,,。SBR,。(1)。、,,79第1期 邓荣森,等:跌水曝气系统在污水处理工艺上的运用前景探讨 ,、,。(2),,。(3)。,SBR,,。,,。,(2)。2 BOD5/mgL-1CODCr/mgL-1SS/mgL-1/mgL-1NH3-N/mgL-1pH14503480730242306.8~8≤30≤100≤150≤10≤156.8~9 ,(5),,。。。。5 ,,,,,;、。3 3.1 ,。,。,。,,,,,。,,,,。,,,。,。,,,,;,。3.2 ,,:,,。,。。,,,,,。,60%。,,、。,,、,。,,,,,“”。,,。,,,。,。,,,。70%。,:0.5kWh/m3,20108000m3/d,4000kW,70%。(BT),0.37kWh/m3,26%。,2005201010%,(下转第84页)80 重庆建筑大学学报 第29卷83.939(2)(1)、(2)DO、。3 1)C/N,50%~90%。DO,DO0.2mg/L()~0.6mg/L(),NH4+-N。2)DO,12h。16h,。3)DO,NH4+-N、。4)DO:=0.1365DO2-1.488DO+47.089=-0.1989DO2+1.4997DO+83.939:[1] K.Hanak.iNitrificationatlowlevelsofdissolvedoxygeninasuspended-growthreactors〔J〕.Wa.tRes.,1990:297-302.[2] E.Munch.Simultaneousnitrificationanddenitrificationinbench-scalesequencingbatchreactors〔J〕.Wa.tRes.,1996,30(2):277-284.[3] O.Turk..Stabilityofnitritebuild-upinanactivatedsludgesystem〔J〕.J.WPCF,1989,61(8):1440-1448.[4] J.Alleman.Elevatednitriteoccurrenceinbiologicalwastewatertreatmentsystems〔J〕.Wa.tSc.iTech.,1984,17:409.[5] Nicolas.Nitrificationatlowoxygenconcentrationinbiofilmreactor〔J〕.J.Envir.Enginer.,2001,3:266-271.[6] ,.OSA〔J〕.,2006,(1):24-27.(上接第80页),,。,,,,,。5 1),,。2),、,,,。3),,。4),,,,。:[1] ,.———()〔J〕.,2002,20(6):25-26.[2] ,.()〔M〕.:,[3] .()〔M〕.:,[4] ,,.3000〔N〕.,2002-02-20.[5] 43988〔EB/OL〕.,2005-06-29,20:28.[6] ,,,.〔J〕.,2002,24(4):45-48.84 重庆建筑大学学报 第29卷