Carrousel氧化沟中的同时硝化反硝化SND现象研究杨青

Carrousel/(SND)1,1,2(1.,　200092;2.):Carrousel,,IAWQ1.Carrousel/,,.:Carrousel;/;1;:X703　:A　:0250-3301(2002)-04-0040:(1975～),,,.StudyonSimultaneousNitrificationandDenitrification(SND)inCarrouselOxidationDitchYangQing1,LiuSuiqing1,GanShuying2(1.CollegeofEnvironmentalScience&Engineering,TongjiUniver-sity,Shanghai　200092,China;2.ShanghaiAcademyofEnvironmentalScience)Abstract:ReactorsofimpellersandditchesinCarrouseloxidationditcharethebestcombinationofpushflowreactorsandcompletemixingreactors.AccordingtothisanewmathematicalmodelbasedonActivatedSludgeModelNo.1wasputforward.ThesimultaneousnitrificationanddenitrificationofCarrouseloxidationditchprocesswasvalidatedinthelaboratory,whichwasdynamicsimulatedbythenewmodel.Theresultstallywellwithpilot-scaleexperimentdata.Keywords:CarrouselOxidationDitch;simultaneousnitrificationanddenitrification;activatedsludgeModelNo.1(ASM1);dynamicsimulation　　,,.[1～4],/./,.,,.1　//,3SND:(1)　/.(2)()　,.,.(3)　[5],[6].2　Carrousel1.Carrousel　　　1　CarrouselFig.1　Flow-sheetofdenitrificationprocessbyCarrouselOxidationDitch　　Carrousel23200212　　　　　　ENVIRONMENTALSCIENCEVol.23,Sup.Dec.,2002DOI:10.13227/j.hjkx.2002.s1.009,21,.,,,,,(2).2　CarrouselFig.2　IchnographyandmensurationdotsdistributionofCarrouselOxidationDitch3　Carrousel/Carrousel,,,,.pH7.0,1∶1,MLSS3000mg/L,(SV)70%～85%,CODCr95%.Carrousel0.8～1.5mg/L,0.5～0.8mg/L,3.Carrousel2,Carrousel,.4,31.5mg/L18mg/L.6,.TN,,,Carrousel.3　Fig.3　Distributionfigureofdissolvedoxygen4　Fig.4　Variationofvariousnitrogen4　CarrouselCarrousel.12,,2.3,,,21、2,5.Carrousel,2,V1=V3=0.0125m3,1.0～1.5mg/L,,1.51.0mg/L.V2=0.0545m3,V4=0.14m3.Carrousel,R=20,r=1.1[7],41　　　　　　　　　CFSTR,PF5　CarrouselFig.5　PatternfigureofCarrouselOxidationDitchreactor.,,.,CFSTR:dXBAdt=Q×(1+r+R)/V×(XBAO-XBA)+μASNHKNH+SNHSOKO,H+SOXBA-bAXBA(1),Q(m3/d);V(m3);XBA(g/m3);μA(d-1);SNHNH+4-NNH3-N(g/m3);KNH(g/m3);SO(g/m3);KO,H(g/m3);bA(d-1).PF(2):dXBAdt=μASNHKNH+SNHSOKOH+SOXBA-bAXBA(2)5　ASM1,.4,,6～9.6　Fig.6　VariationofDOineachditch7　Fig.7　VariationofNH3ineachditch　　(6),.7,1、2,.84.342　　　　　　238　Fig.8　Variationofnitratenitrogenineachditch9　Fig.9　VariationofTNineachditch～4.5mg/L,,.931.5mg/L18mg/L,,,.6～9,,.6　(1)Carrousel,Carrousel.(2)Carrousel,.1、2、,21、2,CFSTR1PF1CFSTR2PF2Carrousel.(3)1,,.:1　Munchetal.SimultaneousNitrificationandDenitrificationinBench-scaleSequencingBatchReactors.Wat.Res.,1996,30(2):277～284.2　BertanzaG.SimultaneousNitrification-denitrificationProcessinExtendedAerationPlants:PilotandRealScaleExperi-ences.Wat.Sci.&Tech.,1997,35(6):53～61.3　..,1998,24(12):6～9.4　DaiggerGT,LittletonHX.Orbal/.,1999,15(3):1～7.5　VanLoosdrechtMCM,JettenMSM.Microbiologicalcon-versionsinnitrogenremoval.IAWQ19thBiennialInternation-alConferencePreprintBook1.1998,1～8.6　..,1997,17(6):37～38.7　HenzeM,GradyCPL,GujerWJetal.ActivatedSludgeModelNo.1.IAWPRCScientificandTechnicalReportNo.1,IAWPRC,London.1987.43