搜索
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