采用氧化沟从城市污水中去除氮和磷的研究刘俊新

30　5199710　　　哈　尔　滨　建　筑　大　学　学　报JournalofHarbinUniversityofC.E.&Architecture　　Vol.30No.5Oct.1997刘俊新王宝贞J.W.vanGroenestijin　H.J.Doddema　　　()　　　　　　　　　　　　　　　　()　　　　。,。,,90%。,,20%。,。　;();;　X7030　前言。,。(TN)(TP),TN30%～40%,TP35%～50%。,,。,[1～3]。,。,,,,,,。1　试验条件与方法1.1　Delft,。Pasveer(1)。,40m3;150m3;,3m3。。,,,:1996-12-06　　/(150008),11m3()。　　1。,0℃;25℃。50～100m3/d,。1　1　　　　　pH7.0～8.47.7NH4-N(mg/L)30～11075SS(mg/L)30～477138NO3-N(mg/L)0.5～1.41.0COD(mg/L)117～1267462NO2-N(mg/L)0～0.30.1TP(mg/L)4.3～22.411.9TKN(mg/L)39～13390.2COD:TP38.8TN(mg/L)91.3COD:TN5.11.2　OXI(WTW);pHpH91(WTW)pH;NH4-N、NO3-N、NO2-NTPDIN38406-E5-1(LCK303)、DIN38405-D9-2(LCK339)、DIN38405-D10(LCK341)DIN38405-D11-4(LCK350);COD、TKN、SS、MLSSMLVSS[4,5];。2　氧化沟脱氮研究,。,。[6],,。,。20.015～0.020kg/kgMLSS.d、COD0.07～0.10kg/kgMLSS.d、14～25℃,。45%～55%,90%。45%,,;55%,,。。3≤0.022kg/kgMLSS.d、COD≤0.10kg/kgMLSS.d、。375刘俊新等:采用氧化沟从城市污水中去除氮和磷的研究,,TN。,,TN。15℃,TN90%。13℃。2　　　　　　　　3　　1.;2.;3.;4.　　　　　1.;2.3　磷的去除,,(SRT)30～50d,TP35%;TP50%。TP,。,4。SRT30～60d。4,10,。7～9,11,10。,,TP20%。TP,,TP。5TP。,TP。,,TP。　　　4　1.;2.;3.5　TP38哈　尔　滨　建　筑　大　学　学　报306　SRT1.;2.4　氧化沟的SRT对除磷除氮的影响,。6,,SRT,SRT,。,,SRT。,,SRT。SRT10d。,SRT30～50d,。7　COD5　COD的去除COD,7。,COD,COD90%。CODNO-3。　　　6　结论,,45%～55%,90%。,。,20%。,。COD90%。,,。:(1),,。(2),,。(3),,,。395刘俊新等:采用氧化沟从城市污水中去除氮和磷的研究1　B.E.RittmannandW.E.Langeland,Simultaneousdenitrificationwithnitrificationinsingle-chan-neloxidationditches,JournalWPCF,57(4),300～308,19852　C.S.Applegate,B.WilderandJ.R.DeShaw,Totalnitrogenremovalinamulti-channeloxidationsystem,JournalWPCF,52(3),568～577,19803　K.Inomae,H.Araki,K.Koga,Y.Awaya,T.KusudaandY.Matsuo,Nitrogenremovalinanoxidationditchwithintermittentaeration,Wat.Sci.Tech.,19,209～218,19874　NEN6633,Anon,Bepalingvanhetchemischzuurstofverbruik(CZV),2edruk,TheNetherlands,19905　Standardmethodsforexaminationofwaterandwastewater(18thEdition),AmericanPublicHealthAssoc.,WashingtonDC,U.S.A,19926　J.X.Liu,J.W.vanGroenestijn,H.J.DoddemaandB.Z.WangInfluenceoftheaerationbrushonnitrogenremovalintheoxidationditch,EuropeanWaterPollutionControl,Vol.6(4),25～30,1996RemovalofNitrogenandPhosphorusfromDomesticWastewaterbyanOxidationDitchLiuJunxin　WangBaozhen　J.W.vanGroenestijin　H.J.Doddema　　Abstract　Anoxidationditchhasextensivelybeenusedinmanycountriesasane-conomicandefficientwastewatertreatmenttechnique.However,removalefficienciesofnitrogenandphosphorusinconventionaloxidationditchesarelow.AerobiczoneandanoxiczonecanbeformedintheditchthroughcontrollingoxygensupplyofthebrushandTNremovalisover90%.Inordertoincreaseremovalefficiencyofphosphorus,twoanaerobictankswereaddedintheoxidationditchsystem,whichincreasedabout20%ofphosphorusremoval.Theexperimentalresultsshowthatremovalofnitrogenandphos-phorusfromdomesticwastewaterbytheoxidationditchisfeasible.Keywords　oxidationditch;removalofnitrogen;removalofphosphorus;domesticwastewatertreatment40哈　尔　滨　建　筑　大　学　学　报30