ANAMMOX过程中污泥膨胀的原因分析及消除办法

©1994-2009ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(1.,710055;2.,716000):ANAMMOX,0.051kg/(m3d),98.15%99.56%,404135,2d,;,,,,,ANAMMOX:;;:X703.1:C:1000-4602(2008)17-0067-04AnalysisandSolutionofFilamentousSludgeBulkingduringANAMMOXLVYong2tao1,SUNHong2fang1,WANGLei1,YEXiang2de2,WANGZhi2ying1(1.SchoolofEnvironmentalandMunicipalEngineering,XianUniversityofArchitectureandTechnology,Xian710055,China;2.YananInstituteofEnvironmentalScience,Yanan716000,China)Abstract:ANAMMOXbacteriaandgranularsludgewerecultivatedinanaerobicrotatingbiologicalcontactor,andthestableoperationofANAMMOXwasrealized.Whentheinfluentloadingsofammonianitrogenandnitritenitrogenareboth0.051kg/(m3d),theirremovalratesare98.15%and99.56%respectively.Tosaveenergy,thetemperaturewasdecreasedfrom40-41to35,buttwodayslat2er,filamentoussludgebulkinghappenedwiththefallingofremovalratesofammonianitrogenandnitritenitrogen.Themicroscopicexaminationshowsthatthestructureofthesludgeislooseandalsolotsoffila2mentoussulfurbacteriaarefound.Theanalysisindicatesthattheexcessivereproductionofthefilamen2toussulfurbacteriaandthesludgelossarecausedbythesynergisticreactionofsulfate2reducingbacteriaandfilamentoussulfurbacteria.Afterthetemperaturerisesandtheadditionoforganicmattersintothein2fluentisstopped,thegrowthoffilamentoussulfurbacteriaisinhibitedeffectivelyandtheactivityofANA2MMOXbacteriaisrecovered.Keywords:ANAMMOX;sludgebulking;sulfate2reducingbacteria:(50178059)(ANAMMOX),ANAMMOX,76241720089CHINAWATER&WASTEWATERVol.24No.17Sep.2008©1994-2009ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.[1],ANAM2MOXANAMMOX,11111,,6.2L,1.31.5r/min,1Fig.1Schematicdiagramofanaerobicrotatingbiologicalreactor112,,COD20mg/LNH+4-N70mg/LNO-2-N70mg/L113:;:N-(1-)-;:;:;:2211ANAM2MOX,4041HRT=24hpH8.258.500.051kg/(m3d),98.15%99.56%,ANAMMOX[2],,35,2d,ANAMMOX,,10d90%45%,,[2(a)],,,[2(b)],(1.22)m(370)m,2Fig.2Sludgecharacterduringfilamentousbulking[3],,,,,[4]212,5[5]:DOpHH2S,,,H2S,,,33Fig.3Variationofsulfateconcentrationduringfilamentoussludgebulking862417©1994-2009ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.:NH+4+NO-2ANAMMOXN2+NO-3()(1)SO2-4CODS2-NO-2NO-3SO2-4(2)(1)(2):,;ANAMMOX,3311,,ANAMMOX,ANA2MMOX(3038)(3036)(2043)(ANAMMOX40)[67],:COD,4041,;,,31231211ANAMMOX3,,11Tab.1OperationconditionsofequipmentANAMMOX/d11314394057/3540414041HRT/h242424/(mgL-1)707050NO-2-N/(mgL-1)707050COD/(mgL-1)2000:ANAMMOX,,COD312124ANAMMOX3(1000)4Fig.4Variationofsludgecharacter(1000)4,,,;10d,;ANAMMOX,,31213ANAMMOX,ANAMMOX;AN2AMMOX,55,,,10d90%45%;,,,;ANAMMOX,96:ANAMMOX2417©1994-2009ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.[8],ANAMMOXCO2,,66Fig.6Variationofnitrateconcentration6,,ANAMMOX,(COD,),;,ANAMMOX4ANAMMOX,H2S;,,,,,,,COD(),,ANAMMOX:[1],,,.[J].,2005,26(2):50-52.[2],,,.[J].,2007,27(5):753-757.[3]RE,NE.(8)[M].:,1984.[4]AntonioMPM,KrishnaP,JosephJH,etal.Filamentousbulkingsludge:acriticalreview[J].WaterRes,2004,38(4):793-817.[5],.[J].,2001,17(3):66-69.[6],,.[J].,2006,15(4):844-853.[7],,,.[J].(),2002,18(4):464-467.[8]StrousM,HeijnenJJ,KuenenJG,etal.Thesequencingbatchreactorasapowerfultoolforthestudyofslowlygrowinganaerobicammonium2oxidizingmicroorganisms[J].ApplMicrobiolBiotechnol,1998,50:589-596.E-mail:[e-mail]:2008-03-09072417