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UASB孙文章1 傅金祥1 杨涛2 于兴1(1. 100168; 2. ) UASB,:(35℃),,pH(6.8～7.2)、(1000mg/L),65dUASB,1～3mm。CODcr92.8%,12.8kgCOD/(m3·d),1kgCOD0.8m3。 UASB TheStartupResearchonUASBReactorUnderMediumTemperatureSUNWenzhang1 FUJinxiang1 YANGTao2 YUXing1(1.MunicipalandEnvironmentalEngineeringCollege,ShenyangJianzhuUniversity Shenyang100168)Abstract ResearchonthestartupofUASBreactorundermediumtemperatureisconducted,theresultsshowthatundermeaophiliccondi-tions(35℃),usingthenotbeingtamedremainingsludgecomingfromthedigesttankofcitywastewaterplantasseedsludge,andcontrollingpHvalue(6.8～7.2)andalkalinity(1000mg/L),theUASBreactorcancompletethesludgegranulationstartin65dayswiththeparti-clediameter1-3mm,theremovalrateofCODcrupto92.8%,thecapacitycarriesupto12.8kgCOD/(m3·d)andthenetgasyield0.8m3/kgCODyield.Keywords UASBreactor startundermediumtemperature thesludgegranulation methane ,UASB,,,UASB。,UASB。1 1.1 1。UASB90mm,2.35m,15L,12L,0.5m1,4。,35℃。UASB,,,。1 UASB1UASB;2;3;4;5;61.2 ,,ρCOD∶ρN∶ρP=100∶2.5∶0.5,。1。1 /(g·L-1) /(mg·L-1)75ZnCl2 100014(NH4)Mo7O24·4H2O1000KH2PO41.6AlCl3 1000MgSO4·7H2O4CuCl2 1000FeSO4·7H2O1HBO3 1000CaCl2()1.5CoCl2·6H2O 1000 NiCl2 1000 MnSO4·H2O 10000 COD,0.5mL/gCOD;NaHCO3。1.3 8L,,ρSS=17.5g/L,ρVSS=10.2g/L,SS∶VSS=0.59。,UASBCOD1g/L,HRT24h,COD80%,CODcr500～1000mg/L。。2 2.1 CODcr2·20· IndustrialSafetyandEnvironmentalProtection 2006323March2006。,3,1kg/(m3·d),CODcr,80%。22d,CODcr,,6d80%。,,。UASB。UASB65d,(CODcr)12.8kg/(m3·d),CODcr90%～93%,80%。2 CODcr2.2 ,:521(45d),0.2～0.4,63(58d)CODcr0.74m3,640.81m3。3:64(59d),0.8m3。,,,。2.3 3 ,,。,,。3,,0.5～1mm;,60,,1～2mm。,,。62d3/4,,65d,,,1～3mm,5mm。3、44×4mm,2,4。,,,。,。4 2.4 2 4×4mm/mm11～22～33～453/2484187424/1558165302.4.1 pHCODpH(8.2)pH(6.5),,,pH,,pH。pH6.8～7.2。,pH,6.0～6.6,CODcr30%。,,,pH,7.0,CODcr85%。pHCODcr5。5 pHCODcr·21·张立东 冯丽娟( 550003) ,、,,,。 TheResearchProgressofSimultaneousNitrificationandDenitrificationTechnologyZHANGLidong FENGLijuan(SchoolofResourcesandEnvironmentalEngineering,GuizhouUniversity Guiyang550003)Abstract Basedonuptodateresearchfindings,theformativemechanismforsimultaneousnitrificationanddenitrificationisbrieflyin-troducedinaspectsofmicroenvironmenttheoryandbiologytheory,aswellastheimpactfactorsandresearchprogress.Alsotheapplicationofthistechnologyisillustratedanddiscussionsontheproblemstoberesolvedandtheapplicationprospectsareconducted.Keywords simultaneousnitrificationanddenitrification microenvironment biology 。[1]。,2。,,。(SimultaneousNitrificationandDenitrifi-cation,SND),,[2]、[3]、SBR[4]、[5]、CAST[6]。,,:①,;②2.4.2 VFA/COD1g/LVFA400mg/L。,VFA0.1～0.2,90%,6。,,,,VFA,,,;,VFA,400mg/L,,VFA/0.1～0.2,90%。6 VFA/3 2,35℃,pH、、,65dUASB,(CODcr)12.8kg/(m3·d),CODcr92.8%。,,;1kgCOD0.8m3,。1 ..:,20042 ,..:,20013 ,..:,20044 ,..,1993,11(13):5～1055 ,,UASB.,1997,15(3)6 GLettinga,.UASB.Biore-sourceTechnology,1993,43.,1993,2:42～497 .UASB.[],:,19938 ..,1997,29(6)(:20050909)·22· IndustrialSafetyandEnvironmentalProtection 2006323March2006