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StudyonthemechanismofanaerobicsludgegranulationinUASBreactorfortreatingcornstarchwastewaterShiXiankui(HeilongjiangInstituteofScienceandTechnology,Harbin150027,China)(,150027)[]UASB,,。:,,。[];;[]X703.1[]B[]1005-829X(2008)11-0050-03Abstract:TheprocessofanaerobicsludgegranulationinUASBreactorfortreatingcornstarchwastewaterhasbeeninvestigated.Thestudyisuniqueinthatthetinybacterialflocculatingunitsareobservedandthemodelofsludgegranulationisestablished.Theresultsindicatesthatundertheconditionofensuringthebiologicalactivity,providingenoughsludgeloadandcontrollingthehydraulicconditionofthesystemhavethemostimportanteffectontherapidformationanddevelopmentoftheinitialgranules.Keywords:upflowanaerobicsludgebed;cornstarchwastewater;granulatedsludge[]2007(1152G036)1976BredaCSM6m3,〔1〕,。,,:〔2〕,〔3,4〕〔5〕,,UASB,、,,。11.1,,1。1.2UASB,1,2,。5%NaOHCO2,,30℃。11COD/(mg·L-1)BOD5/(mg·L-1)SS/(mg·L-1)/℃pH5000~70003000~5500480~1200305.5/(kg·kg-1·d-1)VSS/SS/%/%VSS/(kg·m-3)0.140.5173102811200811IndustrialWaterTreatmentVol.28No.11Dec.,2008501.3BOD5:;COD:;SSVSS:;pH:pH-2;:;:;SEM:2%4h,3,,FEI-QUANTA200,15KV。22.1,COD3500mg/L,,,,COD80%,SMA60%~70%,,0.1m/h,0.1m/h,,,SS。60d,3,。2,COD(VLR)(HRT)3。2、3,COD2755~3080mg/L,COD0.5kg/(m3·d),8,COD2210mg/L700mg/L,COD80%。23,4。COD80%,VLR2.5kg/(m3·d),(SLR)0.33kg/(kg·d),HRT98h27h。,,COD2.5kg/(m3·d)9kg/(m3·d),1.3kg/(m3·d),0.3kg/(kg·d)0.8kg/(kg·d),HRT27h12h。2.2、SEM,:(1)。,,、。,5。,,。VLR0.4~1.5kg/(m3·d),0.2~0.3kg/(kg·d),20~25d。(2)。,,。4,10μm,,6。6,20~30μm,、、,2UASB/m3/m/m/m3/m/m/m30.26.231∶10.2040.20.30.0090.21345:2008-11,28(11)6000500040003000200010000102030405060/d1009080706050403020100COD/%CODCODCOD/(mg·L-1)2180160140120100806040200102030405060/d10987654321VLR/(kg·m-3·d-1)HRT/hHRTVLR3VLRHRT516。,20μm(),,,,,。,。VLR2.5kg/(m3·d),SLR0.4kg/(kg·d),10~20d。(3)。,,,,,,,,,。70.5mm81.5mm,VLR6~10kg/(m3·d),SLR0.8kg/(kg·d),,,9,,。,10。3(1)、SEM,。(2)(),。,、,,。(3),,,,。[][1]LettingaG,vanHaandelAC.Anaerobictreatmentforenergyproductionandenvironm-entalprotection[M].WashingtonDC:IslandPress,1993:817-839.[2]LiuY,TayJ.Theessentialroleofhydrodynamicshearforceintheformationofbiofilmandgranularsludge[J].WaterResearch,2002,36:1653-1665.[3]LettingaG.Useoftheupflowsludgeblanket(USB)reactorconceptforbiologicalwastewatertreatment,especiallyforanaerobictreatment[J].BiotechnologyBioeng.,1980,22(4):699-734.[4]ZuJ,HuJ.Thebacterialnumerationandtheobservationofanewsyntrophicassociationforgranularsludge[J].WaterScienceTechnology,1997,36(6):133-140.[5]SchmidtJE,AhringBK.Granularsludgeformationinupflowanaerobicsludgeblanket(UASB)reactor[J].BiotechnologyBioeng.,1996,49(3):229-246.78910[](1967—),2006,,。:13766811267,E-mail:shxk2002@126.com。[]2008-07-22()2008-11,28(11)52
本文标题:处理玉米淀粉废水污泥颗粒化机理研究石宪奎
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