SBR系统中同步硝化反硝化好氧颗粒污泥的培养杨麒

SBR　,＊,,,(,　410082):,(SBR).:,,CODNH3-N74.0%～92.8%82.3%～98.5%.0.5～1.0mm,MLSS4.5g·L-1,SVI32.5,.:;;SBR:X703.1　:A　:0250-3301(2003)04-05-0094:(70171055、50179011);(WJ2002101);(200219):(1974～),,,.:2002-08-08;:2002-10-10＊CultivationofAerobicGranularSludgeforSimultaneousNitrificationandDenitrificationinSBRSystemYangQi,LiXiaoming,ZengGuangming,XieShan,LiuJingjin(DepartmentofEnvironmentalScienceandTechnology,HunanUniversity,Changsha　410082,China)Abstract:ThecultivationofaerobicgranularsludgeusedfornitrogenremovalinSequencingBatchReactor(SBR)fedwithasyntheticmunicipalwastewaterwasinvestigated.Theresultsshowedthattheaerobicgranularsludgewiththehighactivityofsimultaneousnitrificationanddenitrification,couldforminthereactorbycontrollingtheadditionofcar-bonsource,andtheremovalratesofCODandNH3-Nreached74.0%～92.8%and82.3%～98.5%,respectively,inthereactor.Thegranularformedwasaveragely0.5～1.0mmindiameter,andtheMixedLiquidSuspendedSolids(MLSS)andtheSludgeVolumetricIndex(SVI)inthereactorwereabove4.5g/Landabout32.5,respectively.Comparedwiththenormalaerobicactivatedsludgeprocess,thesystemwithaerobicgranularsludgehadahighercon-centrationofeffectivebiomassandamuchstrongerabilityofnitrogenremoval.Keywords:aerobicgranularsludge;simultaneousnitrificationanddenitrification;SBRsystem　　、、、,.,5%,.,,,.:2,,2.,(simultaneousnitrifica-tionanddenitrification,SND),,、SBR、[1,2].,,,.,SBR-,,.,,,SBR[3～5].,24420037　　　　　　ENVIRONMENTALSCIENCEVol.24,No.4July,2003DOI:10.13227/j.hjkx.2003.04.018,.SBR,,,.1　1.1　30cm×30cm×75cm,64L,50L.,、、、、.(20～30℃),ACO,,,.1.2,,4h,2.5h,5min,5min,10min,10min,7h.30L,DO、SV、SVI、MLSS、MLVSS、NH3-N、NO-3-N、NO-2-N、CODpH,,,.1　Fig.1　Theschematicexperimentalequipments1.2　,,1.1　Table1　Thecomponentofsyntheticmunicipalwastewater/mg·L-1　　COD100～400　　NH3-N10～40　　P10　　NaHCO3120　　MgSO4·7H2O124　　CaCl222　　FeCl3·7H2O1.5　　CuSO4·5H2O0.03　　ZnSO4·7H2O0.121.3　NH3-N;NO-3-N;NO-2-NN-(1-)-;COD;SV、SVI、MLSS、MLVSS[6];.2　2.1　,,44d,2.(1～7d),,,,(MLSS)3.5g/L,(SVI)100.COD、NH3-N213.2～390.9mg/L12.3～29.0mg/L,25.7～78.7mg/L0.17～8.57mg/L,92.94%97.97%.,,.40d,,.2,COD200～300mg/L,NH3-N20～30mg/L,COD、NH3-N90mg/L15mg/L,70%60%,954　　　　　　　　2　NH3-N、CODFig.2　TheconcentrationandremovalrateofNH3-N、CODinthephaseofsludgedomestication.2.2　,[7,8],,、.,:2,,,,(、),();,SBR,,、.2,,,,18d,3.,,,;,10d,.3,,,,NH3-N75%20%,2,,95%.,NH3-N50%,.3　Fig.3　Thecomparisonofthecontrastiveexperimentalresults2.3　,,COD/N、,,,5cm7cm,.,,,,96　　　　　　24,0.5～1.0mm,3mm.4,,,.200,,、、、.,,4.5g/L,SVI32.5.5,COD、NH3-N172.9～381.8mg/L14.22～33.50mg/L,27.13～72.47mg/L　　4　Fig.4　Configurationofaerobicgranularsludge5　NH3-NCODFig.5　TheconcentrationandremovalrateofNH3-NandCODinthephaseofgranularsludge0.57～8.36mg/L,83.6%～92.8%82.3%～98.5%,.25d,,COD、NH3-N,,.2.4　,,,1h,NH3-N、NO-3-N、NO-2-N,6.6SBR,NH3-N,70%NH3-N;NO-3-N、NO-2-N1mg/L,NH3-N.SBR,NH+4-N,NO-3-NNO-2-N,NO-3-NNO-2-N,974　　　　　　,.6　SBRFig.6　NH3-N、NO-3-NandNO-2-NprofilesinarepresentativecycleoftheSBR,SBR,(sequentialnitri-ficationanddenitrfication,SQND).3　(1)SBR,,,.,,,0.5～1.0mm,MLSS4.5g/L,SVI32.5mL/g,,.　　(2)CODNH3-N83.6%～92.8%82.3%～98.5%,NO-3-N、NO-2-N1mg/L,COD.(3),,,,,.:1　MasudaS,WatanableYetal.Bio-filmpropertiesandsimulta-neousnitrificationanddenitrificationinaerobicrotatingbio-logicalcontactors.WaterScienceandTechnology,1991,23(9):1355～1363.2　ElisabethVMetal.Simultaneousnitrificationanddenitrifi-cationinbench-scalesequencingbatchreactors.WaterRe-search,1996,30(2):277～284.3　BeunJJ,vanLoosdrechtMCMetal.Aerobicgranulation.WaterScienceandTechnology,2000,41(4):41～48.4　BeunJJ,HendriksAetal.Aerobicgranulationinasequenc-ingbatchreactor.WaterResearch,1999,33(10):2283～2290.5　MorgenrothE,ShedenentTetal.Aerobicgranulationinase-quencingbatchreactor.WaterResearch,1997,31(12):3191～3194.6　..:,1997.7　,.SBR.,2001,22(2):87～90.8　,..,1999,20(2):38～41.98　　　　　　24