复合反应器污泥硝化与反硝化性能的研究吴立波

＊吴立波　王建龙　钱　易　占新民　　　采用投加多孔悬浮载体所构成的复合反应器处理生活污水,并与普通活性污泥法进行了比较。重点研究了两反应器中污泥的硝化活性与反硝化活性。试验表明,复合反应器COD、NH3-N、TN处理效果均好于对照反应器。当负荷较低时,两反应器中附着相与悬浮相污泥好氧活性相近;负荷提高时,两反应器污泥总好氧活性提高,但由于泥龄降低,两反应器悬浮相污泥硝化活性降低,而复合反应器附着相污泥不受泥龄影响,硝化活性提高。在本试验负荷下,复合反应器中污泥反硝化活性远远大于对照反应器。　复合反应器　多孔悬浮载体　硝化　反硝化＊“”(96-909-05-03),(29637010)。　　[1～3]。,[4]。。1　1.1　20.1m×1.0m,8.15L。A,;B20%,。,1。2。A,;B,,、。DO2mg/L～4mg/L,100%,2。1.2　COD、NH3-NTN,1　/kg/m3/%/mm/mm28～30901～1.510×10×82　/dHRT/hCOD/mg/LNV,COD/kg/(m3·d)NH3-N/mg/LNV,NH3-N/kg/(m3·d)Ⅰ0～209.596.780.2335.90.09Ⅱ21～664.5234.71.1433.60.18。,pH71000mg/L。,、,COD100mg/L,NH3-N50mg/L,NO-2-N10mg/L。,NO-3-N50mg/L。1/2。(OURW)。、、、。OURW,JoannaS-G。,(OURT),。NaClO3(ATU),OUR1OUR2。(OURI)　Vol.25　No.5　1999　15　　DOI:10.13789/j.cnki.wwe1964.1999.05.006(OURA)。OURA=OURT-OUR1　　(1)OURI=OUR1-OUR2　　(2),4,0h,2h,4h,6h,,。2　2.1　3　TN2　NH3-N1　COD1～3COD、NH3-NTN。COD,Ⅱ。NH3-NTN。,。TN,。2.2　4　4,,BA。Ⅰ,,AB(MLSS,)1.55g/L2.36g/L,1.52。Ⅱ,,,,,,,AB1.04g/L2.09g/L,2.01。,,。2.3　2.3.1　5　3OURT5。Ⅰ,。Ⅱ,　16　　　Vol.25　No.5　1999,,。,。2.3.2　67,Ⅰ。Ⅱ,。Ⅱ,,,,。,,。,。6　7　,,ⅡBA。2.3.3　DO,。8,,Ⅱ,DO,。8　。,,DO,。,。3　,。,。,,,,;,,。,,,。参考文献1　TyagiRDetal.Wastewatertreatmentbyimmobilizedcells.CRCPressFlorida,USA,1990.108～1152　..:,1995.115～1203　,..,1998,19(1):62～654　WartchowD.Nitrificationanddenitrificationincombinedactivatedsludgesystems.WatSciTech,1990,22(7/8):199～206:100084　:[phone]　:1999-1-12　Vol.25　No.5　1999　17　　WATER&WASTEWATERENGINEERINGVol.25No.5May1999CONTENTSPreliminaryComparisonofPackageMaterialsUsedinBiologicalContactOxidationProcess　toTreatSlight-PollutedSourceWaterMeiXiangetal(1………………………………………………………………………)　　Abstract:ThestructuralfeaturesandperformancesofbiologicalcontactoxidationprocesspackedwiththreedifferentkindsofmaterialsYDT,TAandPWTtotreatslight-pollutedrawwaterarediscussedandcomparedinpreliminary.There-sultsshowthateveryoneofthethreewillbesuitableforbiologicalcontactoxidationprocesstotreatslight-pollut-edrawwa-terandsimilarremovalsofammonianitrogenwereobtainedunderthesameoperatingconditionandwiththeapproximatespecificsurfaceareaofpackagematerialbeinginstalled.Furthermoreitisnecessarytostudytheproblemssuchastheopti-mumarrangementofpackagematerialsinsidethereactorandthechangesoftheworkingstatusofthepackagematerialatdifferentqualityofrawwater.PilotInvestigationonReuseofFilterBackwashWaterKeShuizhouetal(4……………………………………………………)　　Abstract:FieldexperinentsonbenchscaleandpilotplantlevelshavebeendoneinawaterworkswhichtakesrawwaterfromXiangjiangRivertoinvestigatetherecyclingandreuseoffilterbackwashwater.Theresultsshowthatthedirectrecy-clingofbackwashwatertothereactiontankmakesnotonlybotheconomicalandenvironmentalbenefitsforwatersourcesaving,butalsotheimprovementofthereactionandsedimentationprocess.WaterDistributionDesignofPeripheralInletRadialSedimentationTankJiHong(7……………………………………………)　　Abstract:Aguidelineforthedesignofwaterdistributionsystemofperipheralinletradialsedimentationtankhasbeenrecommendedbytheauthoronthebasisoffluidmechanics.Attentionsshallbefocussedonthewaterheadlossh2intheinletwaterdistributingcanal.whichshouldnotexceedover10%oftheheadlossh1atthedistributingorifices.Alsothecalcula-tionmethodsoftheheadlossesinthedistributingcanalandtheorificesaredescribed.ExplanationandMaintenanceofCalumetWRPZhouYiping(10…………………………………………………………………)　　Abstract:Theevloutionandmaintenanceintheforegoing70yearsofCalumetWRP,acomponentbelongingtoMetropolitanWaterReclamationDistrictofGreatChicagoarepresented.TheOrganicConstituentsinWaterandTheirImpactonDrinkingWaterQualityLiXiaodongetal(12………………………)　　Abstract:Theauthorsdiscussedthetypesoforganicconstituentsinsurfacewatersandtheirimpactondrinkingwaterquality.Themicro-pollutantsfromwastewaterandthedisinfectionby-productshavedirectimpactonthedringingwaterqualityandarethemainorganiccompoundstobecontrolled.Thenaturalorganicsubstancescauseindirectimpactonwaterqualitybyincreasingthecoagulantdosage,theresiduesofaluminumandthedisinfectionby-products.Thealgaecausede-creaseofthecoagulantandfiltratinefficiencyandodorproblems.StudyonNitrificationandDenitrificationofSludgeinHybridBiologicalReactorWuLiboetal(15……………………………)　　Abstract:Sewagewastreatedbyusingthehybridreactorwithporoussuspendedcarriers(polyurethanefoam)asmediaandacomparisionwithconventionalreactorwasmade.Thestudyfocusedonthecapabilityofnitrificationanddenitrificationofthesludgeinthereactors.TheresultshowedthatthehybridreactorhadhighersludgeconcentrationandbetterremovalofpollutantCOD,NH3-NandTNthanthecontrolreactor.WhentheorganicandNH3-Nloadingswerelow,capabilityofnitrificationanddenitrificationofthesludgewasclose.Astheloadingswereincreased,thecapabilityofnitrificationanddeni-trificationofthesludgebecamedeprssed,butthatofattachedsludgebecameenhanced.Capabilityofdenitrificationofsludgeinthehybridreactorwasmuchgreaterthanthatofsludgeinthecontrolreactor.