好氧颗粒污泥形成与运行稳定性的影响因素试验分析唐海

:　,,1976,,,。＊(No.KJ2008B042);(No.2008JQL081)。好氧颗粒污泥形成与运行稳定性的影响因素试验分析＊唐　海1　刘桂中2　李晓燕1(1.,　241000;2.,100037)　　　,SBR,、(BOD5∶N∶P)。,;、、,,。38∶6,1.67kg/(m3·d),BOD5∶N∶P100∶5∶1,2h,17,23,2～3mm,(SV)29.0%,COD94.3%。　　　　SBR　　　Analysisofinfluencingfactorsontheformationandstabilityofaerobicgranularsludge　TangHai1,LiuGuizhong2,LiXiaoyan1.(1.DepartmentofBiology&Chemistry,AnhuiUniversityofTechnologyandScience,WuhuAnhui241000;2.BeijingMunicipalResearchInsititueofEnvironmentalProtection,Beijing100037)Abstract:　Aerobicgranularsludge(AGS)wascultivatedinsequencingbatchreactors(SBRs),withflocsludgeasseedingsludgeinsyntheticwastewater.Theeffectofheight-diameterratio(H/D),sludgevolumeloading(SVL)andnutritiveproportion(NP)ontheformationofAGSwasstudied.TheresultsshowedthatincreasingtheH/Dtoacertainextentwasbenefitedfortheformationofaerobicgranularsludge.HigherSVLacceleratedthegrowthoffila-mentousmicrobe,whilelackofphosphoroussourceenhancedthesludgeviscositybulking.UndertheoptimalcultureconditionsofH/D=38∶6,SVL=1.67kg/(m3·d),BOD5∶N∶P=100∶5∶1andHRT=2h,granularsludgewasformedafter17operatingcyclesandmaturedafter23operatingcycles.TheobtainedAGShadtheaveragesizeof2-3mm,averageSVof29.0%andaverageCODremovalefficiencycouldreachto94.3%.Keywords:　aerobicgranularsludge;SBR;height-diameterratio;sludgevolumeloading;nutritiveproportion　　、、,,、、、、[1]。2:[2];[3]。[4]、[5]、[6]、(HRT)[7]、[8]、[9,10]、[11,12]、[13]pH[14]。　　,,。,(H/D)、(SVL,COD)(BOD5∶N∶P),、、、、、COD。1　1.1　试验装置6SBR(R1～R6),R1、R2H/D=38∶6,R3、R4H/D=17∶9,R5、R6H/D=11∶11。,,,1～3mg/L。(25±2)℃,。6SBR:1L、(SRT)40d、10min、480min、60min、20min、150min、12h。·48·　　31　7　20097DOI:10.15985/j.cnki.1001-3865.2009.07.0101.2　试验废水及接种污泥,:(,1.000g1.120gCOD,0.742gBOD5,)、(,)、(,),、、。SVLBOD5∶N∶P。　　,,,8d(COD500mg/L,BOD5∶N∶P100∶5∶1),,,,COD(4)92.5%,(SVI)84mL/g,(MLSS)5000mg/L,。1.3　分析方法MLSS[15];COD;(SPJL400);(×160,)(SEM4800)。2　2.1　好氧颗粒污泥形态观察1。,1.5～3.0mm。,1　Fig.1　Morphologicalobservationofaerobicgranularandflocsludge,,,,。、,10μg,10～50μg,。,,,,。,。2.2　好氧颗粒污泥培养试验结果分析SBRMLSS=5000mg/L1L,,3,50。1。SBR,SBRSBR,(SV)、MLSSCOD10SV、MLSSCOD。2.2.1　H/D,H/D=11∶11,,SVL=4.5kg/(m3·d),,,SVL1.5、0.5kg/(m3·d),。H/D=17∶9、H/D=38∶6,12～36(6～18d)。　　3#～6#,,,,,,,。　　,H/D,。H/D,,,,,。TAY[16]LIU[17]。,H/D≥17∶9,·49·　　1　Table1　ExperimentresultsofsynchronizedcultureofaerobicgranularsludgeH/DSVL/(kg·m-3·d-1)BOD5∶N∶P//SV/%MLSS/(mg·L-1)COD/%1#38∶64.5100∶5∶1142027654084.4,2#38∶64.5100∶5∶0121826677885.6,3#38∶61.5100∶5∶1172329584594.34#38∶61.5100∶5∶0162230608995.25#38∶60.5100∶5∶1263224559895.86#38∶60.5100∶5∶0242827597397.27#17∶94.5100∶5∶1192530649888.4,8#17∶94.5100∶5∶0172429678984.5,9#17∶91.5100∶5∶1242828602392.410#17∶91.5100∶5∶0222627643996.411#17∶90.5100∶5∶1364028590897.512#17∶90.5100∶5∶0343928547896.8H/D=11∶11。　　,(、)。(),,。,1(c),,。2.2.2　SVL1#、2#,H/D=38∶6、SVL=4.5kg/(m3·d),12～14,2#1#,35,2#,,,SV72%、SVI257mL/g。,,、,,,。1#2#2,2#。7#、8#,8#7#,7#8#。　　3#、4#1#、2#,2～5,,,9#～12#。H/D、SVL、、,,,,。,。1#、2#3#、4#,,。,,。5#、6#、11#12#,,(4h),,,。,,,,,,,,,。　　,H/D、SVL、。H/D38∶6,SVL1.67kg/(m3·d),BOD5∶N∶P=100∶5∶1,2h,17,23,2～3mm,SV29.0%,·50·　　31　7　20097COD94.3%。3　　(1)SBRH/D,H/D≥17∶9,H/D=11∶11。H/D=17∶9、H/D=38∶6,12～36。　　(2)SVL,SVL,,,。SVL,,。,SVL。:[1]　,,,.SBR[J].,2004,25(4):74-77.[2]　LANHuixia,CHENZhonghao,CHENYuancai,etal.Cultiva-tionofaerobicgranularshudgeinmicroaerobiccondition[J].JournalofSouthChinaUniversityofTechnology:NaturalSci-enceEdition,2005,33(7):39-46.[3]　,,,.SBR[J].,2005,21(2):53-55.[4]　MOYBYP,TAYJH,TOHSK,etal.Highorganicloadinginfluencesthephysicalcharacteristicsofaerobicsludgegran-ules[J].LettersinAppliedMicrobiology,2002,34(6):407-412.[5]　MCSWAINBS,IRVINERL,WILDERERPA.Theinfluenceofsettlingtimeontheformationofaerobicgranules[J].WaterScienceandTechnology,2005,50(10):195-202.[6]　TAYJH,LIUQS,LIUY.Theroleofcellularpolysaccha-ridesintheformationandstabilityofaerobicgranules[J].Let-tersinAppliedMicrobiology,2001,33(3):222-226.[7]　PANS,TAYJH,HEYX,etal.Theeffectofhydraulicreten-tiontimeonthestabilityofaerobicallygrownmicrobialgran-ules[J].LettersinAppliedMicrobiology,2004,38(2):158-163.[8]　DEKREUKMK,VANLOOSDRECHTMCM.Selectionofslowgrowingorganismsasameansforimprovingaerobicgranularsludgestability[J].WaterScienceandTechnology,2004,49(11/12):9-17.[9]　TAYJH,LIUQS,LIUY.Microscopicobservationofaerobicgranulationinsequentialaerobicsludgeblanketreactor[J].JournalofAppliedMicrobiology,2001,91(1):168-175.[10]　,,,.SBR[J].,2001,22(2):87-91.[11]　,,,.[J].,2002,18(4):492-496.[12]　BEUNJJ,HENRIKSA,VANLOOSDRECHTMCM,etal.Aerobicgranulationinasequencingbatchreactor[J].Wat.Res.,1999,33(10):2283-2290.[13]　,,.CODDO[J].,2004,10(3):366-369.[14]　,,.[J].,2007,27(10):1604-1611.[15]　APHA.Standardmethodsfortheexaminationofwaterandwastewater[M].17thed.WashingtonD.C.:AmercianPublicHealthAssociation,1989.[16]　TAYJH,LIUQS,LIUY.Theeffectsshearforceontheformation,structureandmechanismofaerobicgranules[J].Appl.Microbiol.Biotechnology,2001,57(1/2):227-233.[17]　LIUY,JOOHWAT.Theessentialroleofhydrodynamicshearforceintheformationofbiofilmandgranularsludge[J].WaterResearch,2002,36(7):1653-1665.编辑:陈泽军　(:2008-12-04)(上接第47页)[11]　,,,.[J].,2007,27(5):657-660.[12]　,