氮缺乏引起的非丝状菌活性污泥膨胀高春娣

,,,(,　100022):SBR,(BOD/N).,BOD/N100/4,;BOD/N100/3100/2,.BOD/N100/0.94,.COD.:;;SVI:X703.1　　:A　:0250-3301(2001)06-05-0061:(59778024):(1973～),,,:2001-03-24Non-filamentousActivatedSludgeBulkingCausedbytheDeficiencyofNitrogenGaoChundi,PengYongzhen,WangShuying,ChenYing(CollegeofEnvironmentandEnergyEngineering,BeijingInstituteofTechnology,Beijing100022,China)Abstract:Theeffectofnitrogendificiencyonactivatedsludgebulkingwasstudiedspeciallyinsomeexperimentscarriedonasequencingbatchreactorfedwithbeerwastewaterinthispaper.TheexperimentalresultsshowedthatthesludgesettledproperlyatainfluentBOD/Nvalueof100/4.WhenthevalueofBOD/Nwas100/3and100/2respectively,non-filamentousactivatedsludgebulkingcausedbyanexcessivegrowthofviscousZoogloeawithhighmoisturecontentoccurred.WhenthevalueofinfluentBOD/Nwas100/0.94,moreseriousnon-filamentousbulkingoccurred.Further-more,theeffectofnitrogendeficiencyonthenitrogensourcesandphosphorussourcesutilizationrateandtheCODre-movalratewasstudiedintheexperiments.Keywords:non-filamentousbulking;nitrogendeficiency;SVI　　.95%,[1],,.().,[2,3].,,,.,,.1　SBR1.SBR14L.,、、、,.COD600mg/L,(MLSS)1900～2100mg/L,DO2.0～3.0mg/L,20±1℃;COD4kg/(kg·d).(TP),(TN),BOD/N100/5、100/4、100/3、100/2100/0.94.SVI226200111　　　　　　ENVIRONMENTALSCIENCEVol.22,No.6Nov.,2001DOI:10.13227/j.hjkx.2001.06.013、.BOD/N,,SVI,,SVI100ml/g,BOD/N.COD、BOD、DO、MLSS、SVI,TN,TP.1.ORP　2.　3.　4.　5.ORP　6.DO　7.DO　8.　9.　10.　11.　12.1　SBRFig.1　ExperimentalequipmentofSBRprocess2　2.1　(SVI)2.SVISVImax:BOD/N,SVI,BOD/NSVImax,BOD/NSVI,.SVIvSVI:BOD/N,SVISVImax,SVI..vSVI=SVI-SVISVI[ml/(g·)]BOD/N2,BOD/NSVImaxvSVI3.(BOD/N)100/5),,,SVI40ml/g.,.2　NFig.2　Effectofdifferentdegreeofnitrogendeficiencyonsludgesettlingproperty3　BOD/NSVImaxvSVIFig.3　SVImaxandvSVIatdifferentinfluentBOD/NvalueBOD/N100/4,SVI,1040ml/g70ml/g,(SVImax),vSVI2.81ml/(g·).,,.,.,BOD/N62　　　　　　22100/5,.,BOD/N100/4,.,,.,BOD/N100/4.,,,.,BOD/N100/5TN,BOD/N100/4.BOD/N100/5100/3,SVISVImax228ml/g,.SVI,,.,,,.BOD/N100/5100/2,50,SVI90ml/gSVImax250ml/g,.,BOD/N100/3,SVI,,.BOD/N100/0.94,30SVI90ml/g458ml/g.,,.2,,.,,,,,BOD/N100/3100/2.SVImax2,450ml/g,vSVI.23,BOD/N,,,,.2.2　NPNP,,.NP,NP.BOD/NTN、TP45.4　BOD/NTNFig.4　UtilizationrateofTNatdifferentinfluentBOD/Nvalue4,BOD/N100/5～100/2,TN,75%.BOD/N100/0.94,,TN.TN,10%.TP(5),,TP,TP.BOD/NCOD6.6,BOD/N100/0.94,BOD/NCOD,80%～90%;BOD/N100/.94,COD50%..636　　　　　　5　BOD/NTPFig.5　UtilizationrateofTPatdifferentinfluentBOD/NvalueBOD/NMLSS7.BOD/N100/5、100/4100/3,,MLSS1900～2100mg/L.BOD/N100/2,,MLSS2000mg/L.BOD/N100/0.94,,,,MLSS,1300mg/L.6　BOD/NCODFig.6　RemovalefficiencyofCODatdifferentinfluentBOD/Nvalue,BOD/N100/2,,.TP,80%.BOD/N100/0.94,,TN、TPCOD,.7　BOD/NMLSSFig.7　VariationofMLSSSatdifferentinfluentBOD/Nvalue2.3　BOD/N,.,BOD/N100/3100/2,,40,SVI(8),.,15kg/(kg·d),.8　SVIFig.8　VariationofSVIvalueduringthebulkingcontrolperiod64　　　　　　22　　,[4].,,,,.,,.BOD/N100/0.94,.,,,,[4.01kg/(kg·d)].,BOD/N100/3100/2.,,2,,.,,,,.,.,.3　(1)BOD/N100/4,,,SVI70ml/g.(2)BOD/N100/3100/2,.,BOD/N100/3SVI,.15kg/(kg·d).(3)BOD/N100/0.94,.,4kg/(kg·d).(4)BOD/N100/2,,80%.BOD/N100/0.94,.:1　NovákL,LLarrea,JWanner,JLGarcia-heras.Non-fila-mentousactivatedsludgebulkinginalaboratoryscalesys-tem.Wat.Res.,1993,27(8):1339～1346.2　HoranNJ,PShanmugan.Effectsofstarvationandnutrientdepletiononthesettlingpropertiesofactivatedsludge.Wat.Res.,1986,20(5):661～666.3　NovákL,LLarrea,JWanner,JLGarcia-heras.Non-fila-mentousactivatedsludgebulkingcausedbyzoogloez.Wat.Res.,1993,27(8):1339～1346.4　,,.SBR.,2000,20(2):129～133.656