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:2006206212:2007202212:,(1957-),,,,Emailhuangzhh@seu.edu.cn(,210096):UASB,,,,,,:UASB;;:X70313;S216.4:A:1000-1166(2007)02-0025-03StructureandDesignofStep2by2stepGas2Liquid2SludgeSeparator/HUANGZheng2hua/(DepartmentofEnvi2ronmentalScienceandEngineeringofSoutheastUniversity,Nanjing210096,China)Abstract:Gas2Liquid2SludgeseparatoristhekeyequipmentofUASBreactor.Severalseparatorswerecomparedinthispaperontheirstructures,strongpointsanddisadvantages.AccordingtotheseparationprincipleofGas2Liquid2Sludgeseparator,step2by2stepGas2Liquid2Sludgeseparatorwasdesignedanddescribed.Thenewlydesignedseparatorcouldreleasegassuffi2cientlybeforeliquidmixtureenterssedimentationarea.Theliquidmixturewouldnotdisturbsludgecircumfluence.Lowerhy2draulicloadinsedimentationareacouldhavehigherseparationeffect.Keywords:UASBreactor,step2by2stepGas2Liquid2Sludgeseparator,anaerobictreatment.(UASB),Lettinga,70,,19991303,UASB59%,219120UASB[1]UASB3,,[2],,,,[3],,,,1:,1,:,,,,,,,,,,,,:1.,;2.,;3.,152ChinaBiogas2006,25(2)21(:Ger.Offen2.921.070),,,,,,,,,,,,2232a,,,,,,,,,,,,,2b,,,,,,,,2c,,,,,,,,,,UASB,,,,3311,,,(3),()()()()(),,,,,,,,,,3312(1),,62ChinaBiogas2006,25(2)(2),1,2,,,,(3),(4)1,2a,,(5)2b,2c,,(6),,,(7)UASB,,(8)3131/8,1/80.4m,0.51.0m3m-2h-1,5060,,4080mmU,300500mm,4UASB,,,,UASB,,,,,,,,,:[1],.(UASB)[J].,2001,27(4):85-90.[2].[A].()[C].:1985,174-180.[3].[J].,1998,19(4):3-6.(24)[22]JanaSchlick,ChristineWerner,FlorianKlingel,PatrickBracken.TepozEcourbanecosanpilotprogram[EB/OL].[23]InaJurga,JanaSchlick,FlorianKlingel,PatrickBrack2en,ChristineWerner.EcologicalsettlementAllermoehe[EB/OL].[24]ArnoRosemarin,XiaoJun,UnoWinblad,GuoyiHan,ZhuQiang.China-SwedenErdosEco-townProjectDongShengInnerMongoliaChina[EB/OL].[25]SonnySyahril,NicolaR?th,FlorianKlingel,ChristineWerner,PatrickBracken.UrineseparationandreuseprojectatthemainbuildingofGTZGmbHEschborn[EB/OL].ht2tp://[26].[J].,1997,15(2):37-38.[27],.[J].,2005,23(3):34-35.[28],.[J].,2006,24(1):52-53.[29],.[J].,2006,3:50-52.[30],.[J].,2006,24(1):36-37.[31],.[J].,2004,3:53-54.[32].[J].,2003,4(28):1-3.[33],.--[J].,1999,17(1):49-51.[34].[J].,1998,1:24-27.72ChinaBiogas2006,25(2)