EGSB反应器的启动运行邢金龙

1　10环境工程学报Vo.l1,No.10200710ChineseJournalofEnvironmentalEngineeringOct.2007EGSB邢金龙(,030009)　　EGSB,EGSB、EGSBEGSB。EGSB(35℃)46d,,,。EGSB、。7～15℃EGSB。7d,24.84kgCOD/m3d、COD94.6%。EGSB,。　　　EGSB　　　　　X703　　　A　　　1673-9108(2007)10-0128-04StartupoperationsoftheEGSBreactorXingJinlong(DepartmentofEnvironmentalEngineering,TaiyuanUniversity,Taiyuan030009)Abstract　ToascertainthefeasibilityofthequickformationofthegranulesintheEGSBreactorseededwithdigestionsludgeandthepossibilityofthequickstartupoftheotherEGSBreactors,theprimaryandthesec-ondarystart-upoperationsoftheEGSBreactorwereinvestigated.Thestart-upofEGSBreactoratmediumtem-perature(about35℃)inoculatedwithdigestedsludgewasoperatedfor46days.ThegranulesformedintheEGSBreactorhadgoodsettlementproperty,highmethanogenicactivityandabundantmicrobesspecies.ThemethodoflowinfluentconcentrationandhighorganicloadswassuitablefortheprimarystartupoftheEGSBreac-torseededwithdigestedsludge,andatthesametimesufficientN,P,SandtracemetalFe,Co,Nishouldbesupplied.Itwasveryquickandonlytook7daysatthemediumtemperature(about35℃)forthesecondarystar-tupoftheEGSBreactornotoperatedatthelowtemperatureof7～15℃foralongperiodsoftime.Organicloadwashighto24.84kgCOD/m3d,CODremovalefficiencywas94.6%.Thewayofhighstartuploadandfleet-lyincreasingloadshouldbeappliedforthesecondarystartupoftheEGSBreactor.Keywords　EGSBreactor;primarystart-up;secondarystart-up;granularsludge;properties:2006-12-31;:2007-05-11:(1957～),,,:。E-mail:[e-mail]　　、、EGSB。EGSB,,,,,,EGSB,。、。,,,。,、EGSB,EGSB[1]。EGSB,、、。:1)EGSB、;2)10:EGSBEGSB。1　1.1　EGSB16.5L,90mm,18∶1,1。,,(35±1)℃。1。1　EGSBFig.1　SchemeoftheexperimentalEGSBreactor1　EGSBTable1　ParticulardimensionoftheexperimentalEGSBreactor(L)(m)(L)(m)(mm)(L)(m)(mm)16.52.1610.01.69018∶16.50.561401.2　EGSB。24.81gMLVSS/L;VSS/SS0.41。,0.114gCODCH4/gCODd。1.3　、,,COD∶N∶P=100∶3∶1,S∶P=1∶2,S∶Fe2+=3∶1,Fe2+∶Co2+∶Ni2+=10∶1∶2NH4Cl、KH2PO4、Na2S9H2O、FeCl24H2O、CoCl26H2O、NiCl26H2O。NaHCO3pH6.8～7.2。CaCl2。1.4　CODVSS[2];VFA[3];pHPHS-3C;[4]。2　2.1　EGSB2.1.1　初次启动方式的选择EGSBUASB,,EGSB,EGSBUASB、。EGSB,,,,,、,EGSB。EGSB、。2.1.2　初次启动的运行情况EGSB46d。25d。35d,。46d、,,。7.12kgCOD/m3d,COD91.06%。2,40kgCOD/m3d,COD91%,EGSB,46d,2。2.1.3　初次启动所形成颗粒污泥的性能(1)1(EGSB5,,110mm),1291,(2)。2,EGSB。1.25mm96.75m/h;0.2～0.4mm28.87m/h。,,。EGSB,。,,,1.25mm63.57m/h,0.25～0.45mm18.22m/h。2　Fig.2　Settledvelocityofthegranulesaftertheprimarystartup(2),。31,,1151.81%。,。,。3　Fig.3　Methanogenicactivityofthegranulesaftertheprimarystartup2.2　EGSBEGSB,。、EGSB(7～8℃)2,。2.2.1　二次启动方式的选择,。,EGSB,。2.2.2　二次启动的运行效果EGSB11.52kgCOD/m3d,3kgCOD/m3d,1,。HRT4.8h,24.84kgCOD/m3d,COD94.6%。4。4　EGSBFig.4　PerformanceoftheEGSBreactorafterthesecondarystartupEGSBCODEGSBCOD13010:EGSB;COD,。,EGSB、,7～15℃,EGSB。2.2.3　二次启动后颗粒污泥性能(1),。1.25mm63.57m/h78.46m/h;0.25～0.45mm18.22m/h23.58m/h,5。,EGSB,。5　Fig.5　Settlingvelocityofgranulesafterthesecondarystartup(2)EGSB。EGSB,EGSB。,EGSB,,。2000mg/L,25kgCOD/m3d,2500mL/h,。　　,7～15℃EGSB。3　　EGSB,:(1)EGSB46d,COD7.12kgCOD/m3d,COD91.06%;240kgCOD/m3d,COD91%。,28.87～96.75m/h,。,;(2)EGSB、;(3)7～15℃EGSB。,,7d,24.84kgCOD/m3d、COD94.6%;,,。[1]NoyolaA.,MeremoG.Granulationproductionfromrawwasteactivatedsludge.Wa.tSc.iTechno.l,1994,31:339～346[2]..:,1998[3].:,1996[4],..,2001,23(3):16～17131