沸石曝气生物滤池去除氨氮性能及生物学特征分析杜尔登

79Vol.7,No.920069TechniquesandEquipmentforEnvironmentalPollutionControlSep.2006杜尔登　刘　翔　王　华　邓　栋(,100084)　　,。,,。3∶1,1m/h,20℃,COD12.7%,NH3-N96.6%;,;,105cm,NH3-N86.8%(90%),COD13.3%(COD67%)。　　　　　　　X703.1　　　A　　　1008-9241(2006)09-0088-06AmmoniaremovalbehaviorandbiologicalcharacteristicsofzeolitemediainabiologicalaeratedfilterDuErdeng　LiuXiang　WangHua　DengDong(DepartmentofEnvironmentalScienceandEngineering,TsinghuaUniversity,Beijing100084)Abstract　Naturalzeolitehashighporosity,largespecificsurfaceareaandlargeselectiveionexchangeca-pacityforammonia.Abiologicalaeratedfilters(BAF)reactorforsecondaryeffluentwasconducted.Theresultsshowthat,whentheratioofgastoliquidwas3∶1,thehydraulicloadingwas1m/h,temperaturevariedfrom20℃to25℃,12.7%ofCODand96.6%ofammonianitrogen(NH3-N)wereremoved.MicrobialactivityandbiomassintheBAFreactorwereinaregularpatternofgradientdistributionfromthelowertotheupperalongthedirectionofwaterflow;thecontaminantswereremovedmainlyinthebottompart,86.6%ofNH3-N(90%ofremovedNH3-N)and13.3%ofCOD(67%ofremovedCOD)wereremovedwhenthewaterflowed105cmfil-termedia.Keywords　biologicalaeratedfilter(BAF);naturalzeolite;microbialactivity;specificoxygenuptakerater(SOUR);microbialbiomass;intensityofnitrification:“863”(2003AA601080):2005-10-20;:2006-05-30:(1978～),,,。E-mail:[e-mail]　　(biologicalaeratedfilter,BAF),、、、、,、、、[1]。NH3-N,,。,,NH3-N[2],NH3-N,NH3-N[3]。NH3-N,,NH3-N,K+、Na+Ca2+,,NH3-N[4]。,,。BAF,,9:,BAF。,,,。1　1.1　1,,20cm,310cm,180cm,2～3mm。,。15、45、75、105145cm。,。,1　Fig.1　ExperimentalschematicdiagramofBAFsystem,,NH3-N,COD,,1。1　Table1　QualityofinfluentwaterCOD(mg/L)NH3-N(mg/L)(℃)NO-2-N(mg/L)NO-3-N(mg/L)DO(mg/L)P(mg/L)87.475.6250.352.0528.030.450.050.845.252.50.271.514.00.5N-(1-)-1.2　20048,,,。,4d,。,。1.2m。20048,20051。4,2。11。2　Table2　OperatingparametersofBAF(L/h)(℃)1303∶120～252603∶116～203603∶112.5～164303∶14.5～9,《》,NH3-N≤10mg/L(,NH3-N≤1mg/L),NH3-N,NH3-N,COD,,、TN、NO-2-NNO-3-N。SS,SS。2　2.1　CODNH3-N3。8973　CODNH3-NTable3　CODandNH3-NaverageremovalratesofBAF(m/h)(℃)COD(mg/L)COD(mg/L)COD(%)NH3-N(mg/L)NH3-N(mg/L)NH3-N(%)1120～290536.231.512.744.41.4696.62216～2038.032.614.246.311.874.53212.5～1643.933.025.167.232.551.5414.5～949.434.929.461.214.975.7　　3,COD。1m/h2m/h,20～25℃4.5～9℃,COD,12.7%～29.4%。4COD1COD,COD,,,COD。,,,COD,。NH3-N,1m/h,20～25℃,NH3-N1.46mg/L,96.6%,2m/h,16～20℃,NH3-N11.8mg/L,74.5%。3,2m/h,16～20℃12.5～16℃,NH3-N,:rT=r20θ(T-20),25℃15℃,33%,18℃14℃,,15%,NH3-N26.8%,NH3-N,NH3-N。3,,NH3-N,NH3-N,。,,,。,43∶1,DO,,,。2.2　,,。,(specificoxygenuptakerate,SOUR),[5]。,,O2,。(lipids),,50μmol/g,-30%～50%。90%～98%,(lipids-P),SOUR。,,SOUR,2、34。23,,,。2m/h,13℃,SOUR127nmollipid-P/g0.51mgO2/g,SOUR909:2　Fig.2　Viablebiomass(phospholipid)inthefilterunderconditionsofdifferentoperatingparameters3　SOURFig.3　Microbialactivity(SOUR)inthefilterunderconditionsofdifferentoperatingparameters4　Fig.4　Biomassactivityexpressedattheratioofmicrobialactivity(SOUR)toviablebiomass(phospholipid)26.9nmollipid-P/g0.17mgO2/g。,。,、、,,。,,,,,。4,,,SOUR。,,[6],,,,;,,,SOUR。2.3　5、671m/h,20～25℃,CODNH3-N。5　CODNH3-NFig.5　ConcentrationprofilesofCODandNH3-Ninthefilter　　5,,NH3-NNO-3-N,,NH3-N,。5、67,9176CODNH3-NFig.6　TotalremovalrateprofilesofCODandNH3-Ninthefilter7　CODNH3-NFig.7　RemovalrateprofilesofCODandNH3-Ninthefilter,105cm,NH3-N86.8%(90%),COD13.3%(COD67%),。SOUR。,,,,,,。,。2.4　BAFNH3-N,SOUR,。8。8　Fig.8　Intensityofnitrificationinthefilterunderconditionsofdifferentoperatingparameters8,,。,,NH3-N,,,。2:1NH3-NNO-2-N,2NO-2-NNO-3-N。NH3-NNO-2-N242.8～351.7kJ/mol,NO-2-NNO-3-N64.5～87.5kJ/mol[7],4～5,,NO-2-N,NH3-NNO-2-N。5,NO-2-NNO-2-N,NO-2-NNO-3-N。929:3　　(1)。3∶1,1m/h,20℃,COD12.7%,NH3-N96.7%。(2),SOUR127nmollipid-P/g0.51mgO2/g,26.9nmollipid-P/g0.17mgO2/g。。(3),105cm,NH3-N90%,COD67%。NH3-N,,。(4)SOUR。(5),。。(6),,,。[1],..,2002,20(3):7～11[2],,..:,2002.88～89[3]Won-SeokChang,SeokwonHong,JoonkyuPark.Effectofzeolitemediaforthetreatmentoftextilewastewaterinabio-logicalaeratedfilter.ProcessBiochemistry,2002,37(7):693～698[4],,..,2002,3(12):38～42[5]JoannaSurmacz-Coraka,eta.lNitrificationmonitoringinactivatedsludgebyoxygenuptakerate(OUR)measure-ments.Wa.tRes.,1996,30(5):1228～1236[6]DanielUrfer,PeterM.Huck.Measurementofbiomassac-tivityindrinkingwaterbiofiltersusingarespirometricmeth-od.Wa.tRes.,2001,35(6):1469～1477[7],..:,1998.36～6293