MBBR水气协同脱氮启动方法研究刘靖

　　　　　2007　　　　　GUANGDONGWEILIANGYUANSUKEXUE　　　　143　:1006-446X(2007)03-0023-05MBBR刘　靖1　万新南(成都理工大学环境与土木工程学院,四川　成都　610059)　:。50×10-6NO2:,,73.81%67.90%,;,NO2,90%。:;;NO2;:X505　　　　　:A、,,,,。,。[1],,NO2NH+4-N,。1　Fig1Schematicofexperimentalprocess1-,2-,3-NO2,4-,5-MBBR,6-。1　1.1　,80mm、780mm。,。40%(),8mm,8～9mm,,,,350m2/m3,200m2/m3,0.95g/cm3(1)。,。,。1.2　,,,m(MLSS)=18397mg/L,/:2006-12-08:(1978—),,,,。23DOI:牨牥牨牰牱牭牭牤jcnkiissn牨牥牥牰牬牬牰x牪牥牥牱牥牫牥牥牱　　　　　2007　　　　　GUANGDONGWEILIANGYUANSUKEXUE　　　　143　(MLVSS)/(MLSS)=0.85,SVI=51.64,。1.3　,m(C)∶m(N)∶m(P)=100∶5∶1,、、、。1.4　NO2,NO2,,,,,,。1　Table1　Analysisitemsandmethods　　CODTSS、VSSNH+4-N、NO-2-NN-(1-)-NO-3-NNO2N-(1-)-2　　Table2　Constitutesofsyntheticwastewater:mg/L　　　　　500.00CuCl22H2O0.020NH4Cl95.00H3BO30.050KH2PO44.00EDTA0.50CoCl26H2O0.002ZnSO47H2O0.04FeSO47H2O0.97MnSO4H2O0.05MgSO47H2O94.00Na2CO375.001.5　COD、NH+4-N、NO-2-N、NO-3-N、NO2。pHpHS-3C,TNTOC-VCPH,DOYSIModel55。1。2　[2],24h,,HRT=6h,0.4m3/h,30℃,pH7～8。2.1　,。。A、、;BA,2。,,23。2,2d,,B,。72.42%,86.03%。A,46.82%,60.85%。,BA。3,,25.96%53.35%,24　　　　　2007　　　　　GUANGDONGWEILIANGYUANSUKEXUE　　　　143　　　2　3　Fig2ThecomparisonofCODremovalefficiencyFig3Thecomparisonofnitrogentransformefficiency,。,,。,,。2.2　NO2[1,3-5]:NO2。,50x10-6NO2。2.1B。45。　　4　5　Fig4ThecomparisonofCODremovalefficiencyFig5Thecomparisonofnitrogentransformefficiency4,NO2,,。25　　　　　2007　　　　　GUANGDONGWEILIANGYUANSUKEXUE　　　　143　,,NO2,,NO2,10d,,7.73%,,5。NO2NONH+4-NNO、N2O[6],,NO2,O2[7],,,,NO2。,,NO2。NO-2-N、NO-3-N、TN,TN,。,,,,。2.3　NO26　NO2Fig6ThepurifyingefficiencyofNO2NO26。NO2,,,NO22.5×10-6,90%。3　　(1),46.82%25.96%72.42%53.35%。,。(2)NO2,,NO27.73%。(3)NO2,,NO22.5×10-6,NO290%。:[1]SCHMIDTI,SLIEKERSO,SCHMIDM,etal,Newconceptsofmicrobialtreatmentprocessesforthenitrogenremovalinwastewater[J].FEMSMicrobiologyReviews,2003,27:481-492[2],,,.[J].,2002,43(1):46-50.26　　　　　2007　　　　　GUANGDONGWEILIANGYUANSUKEXUE　　　　143　[3]SCHMIDTI,ZARTD,BOCKE.GaseousNO2asaregulatorforammoniaoxidationofNitrosomonasEutropha[J].AntonievanLeeuwenhoek,2001,79:311-318.[4]ZARTD,BOCKE.HighrateofaerobicnitrificationanddenitrificationbyNitrosomonaseutrophagrowninafermentorwithcompletebiomassretentioninthepresenceofgaseousNO2orNO[J].ArchMicrobiol,1998,169:282-286.[5]SCHMIDTI,HERMELINKC,VANDEKPAS-SCHOONENK,etal.AnaerobicAmmoniaOxidationinthePresenceofNitrogenOxides(NOx)byTwoDifferentLithotrophs[J].Appliedandenvironmentalmicrobiology,2002,41:5351-5357[6]ZARTD,SCHMIDTI,BockE.SignificanceofgaseousNOforammoniaoxidationbyNitrosomonaseutropha[J].AntonievanLeeuwenhoek,2000,77:49-55.[7]SCHMIDTI,SLIEKERSO,SCHMIDTM,etal.Aerobicandanaerobicammoniaoxidizingbacteria-competitorsornaturalpartners[J].FEMSMicrobiolEcol,2002,39:175-181.ExperimentalstudyonNOX-Processrapidstart-upmethodsofMBBR.LIUJing,WANXinnan(CdlgeofEncironmentandCieilEngineering,ChengduUniversityofTechnology,Chengdu610059,China)Abstract:Theexperimentsonthestart-upofMBBR.TheresearchresultsshowedthatduringtheNO2influentconcentrationof50ppm,hadtheperfectperformanceofset-up,achievingtheCODandammonium-nitrogenremovalefficienciescouldbemaintainedat73.81%and67.90%,respectively,andtheresultsarestable.ItwasalsoshowedthatthepurifyingefficiencyofNO2reached90%andeffluentNO2islessthan2.5×10-6.Keywords:MBBR;start-up;NO2;NOX-process27