低温处理生活污水的复合厌氧工艺研究李晓东

＊:2007-07-09:,,,[e-mail];(),,,,。:(KF2007-02);(2005264):1009-6094(2008)01-0040-04＊李晓东1,孙铁珩1,2,3,李海波2,马铮铮1,王　松1(1,110004;2,110044;3,110016)　:,(20℃)。,,(16～18℃)。。40dCODCr70%,SS75%。,。:;;;+;:X172　　　:A0　　,,,,,(20℃)。,,[1-3]。(EGSB)、+(UASB+AF),,[2,3]。,,,。,、。1　1.1　,[4,5]。,,,。,,。,,Monod,[2]。,,,,。,,,,,。1.2　UASB、AF2,(SRT)(HRT),SRT,,,。2090,UBF、EGSB3,:,,,;,。UBFUASBAF,,,,,[6]。UBF,,。,UBF。EGSBLettinga[7]UASB、、,、,UASB,,。,,,,。EGSBUASB,5～10m/h,UASB1.0m/h。Richard[8],EGSB(COD1000mg/L),。,EGSB,,,,EGSB。,,,。,EGSB[9],,EGSB。1.3　UBF,,EGSB。,。UBF,。EGSB,,。,,,。,,,,408120082　　　　　　　　　　　　　　安全与环境学报JournalofSafetyandEnvironment　　　　　　　　　　　　　　Vol.8　No.1　Feb,2008,,。,,,,[10],,。UBF。2　,3L(80mm,650mm),11L(100mm,1400mm)。,,,1。AF,,,,,[10]。YCDT,1/3,[6,11]。,UBFUASB,SS,。,。(50W),。3　3.1　,1。1—;2—;3—;4—;5—;6—;7—;8—;9—;10—;11—;12—1　Fig.1　Equipmentoftwo-phaseanaerobictreatment1　Table1　WaterqualityofthewastewaterpHCODCr/(mg·L-1)BOD5/(mg·L-1)SS/(mg·L-1)7.5～8.0350～550300～350600～700TP/(mg·L-1)NH3-N/(mg·L-1)(CaCO3)/(mg·L-1)12～1860～80650～7503.2　CODCr;pH;SSVSS;1.2cm(1.6m)[12]。3.3　20061110,(16～18℃)。。1∶1,1L3L。(SV)18%,1.44m/h,VSS/SS0.62,。,1,。,16h,0.75kgCODCr/(m3·d)。3.3.1　COD,,,,2(a)。(),CODCr,()CODCr,。:,;,,CODCr。1,,、CODCr16%、4%。32d,CODCr26.4%,,、38.4m/h、44.8m/h。。,,2h10s,1h20s,2(b)。CODCr,3d(35d)CODCr50.2%,40dCODCr70%,。a—;b—2　CODCrFig.2　CODCrremovaleffectwithanaerobicequipmentinthephaseofstartup4120082　　　　　　　　　　,:　　　　　　　　　　Feb,2008a—;b—3　SSFig.3　SSremovaleffectwithanaerobicequipmentinthephaseofstartup3.3.2　SS3(a),SS,SS80%。,3(b),SS,SS70%,,SS,2,SS75%。,SS,SS,,SS,SS130mg/L。3.3.3　[10,11],。,,。,,,。4　　UASB2～3[11],UBF40dCODCr140mg/L。SS75%。,。,。[13],。40d,。:,,。。,,,,,。5　　1)、,,UBF。2),40dCODCr70%,SS75%,。3),,COD,,。,,,,。References():[1]　ZEEMANG,LETTINGAG.Theroleofanaerobicdigestionofdomesticsewageinclosingthewaterandnutrientcycleatcommunitylevel[J].WaterSciTech,1999,39(5):187-194.[2]　UEMURAS,HARADAH.TreatmentofsewagebyaUASBreactorun-dermoderatetolowtemperatureconditions[J].BioresTechnol,2000,72(3):275-283.[3]　ELMITWALLILT,OAHNK,ZEEMANG,etal.Treatmentofdomes-ticsewageinatwo-stepanaerobicfilter/anaerobichybridsystematlowtemperature[J].WatRes,2002,36:2225-2232.[4]　NOZHEVNIKOVAAN,HOLLIGERC,AMMANNA,etal.Psy-chrophilicmethanogenesisinsedimentsofdeeplakes[J].WatSciTech,1997,36:57-64.[5]　KETTUNENRH,RINTALAJA.Theeffectoflowtemperature(5-29℃)andadaptationonthemethanogenicactivityofbiomass[J].ApplMircobiolBiotechnol,1997,48:570-576.[6]　LBingnan(),CHENZhiqiang().Thenewbiologicaltechnologytotreatmentwastewater()[M].Harbin:HarbinInstituteofTechnologyPress,2005.[7]　LETTINGAG.Advancedanaerobicwastewatertreatmentinthenearfu-ture[J].WatSciTech,1997,35(10):5-12.[8]　RICHARDM,DINSDALEFR.Anaerobicdigestionofshortchainor-ganicacidsinanexpandedgranularsludgebedreactor[J].WatRes,2000,34(9):2433-2438.[9]　JEISOND,CHAMYR.Comparisonofthebehaviourofexpandedgran-ularsludgebed(EGSB)andupflowanaerobicsludgeblanket(UASB)reactorsindiluteandconcentratedwastewatertreatment[J].WatSciTech,40(8):91-97.[10]　LIYaxin().Anaerobicbiologicaltechnologytotreatmentindustrialwastewater()[M].Beijing:ChinaBuildingIndustryPress,2001.[11]　HEYanling().Anaerobicbiologicaltreatmentforwastewater()[M].Beijing:ChinaLightIndustryPress,1998.[12]　PEREBOOMJ,VEREIJKENT.Methanogenicgranuledevelopmentinfullscaleinternalcirculationreactors[J].WatSciTech,1994,30(8):9-21.[13]　WANGKaijun().Anaerobic-hydrolyzedtreatmenttechnologyforlowconcentrationwastewater(-)[M].Beijing:ChinaEnvironmentalSciencePress,1991.42　Vol.8　No.1　　　　　　　　　　　　　　　安全与环境学报　　　　　　　　　　　　　　81Researchonthehybridanaerobictechnologyanditsdesignandstart-upforlowtemperaturehome-sewagetreatingLIXiao-dong1,SUNTie-heng1,2,3,LIHai-bo2,MAZheng-zheng1,WANGSong1(1SchoolofResources&CivilEngineering,NortheastUniversity,Shenyang110004,China;2KeyLaboratoryofEnvironmentEngi-neering,ShenyangUniversity,Shenyang110044,China;3InstituteofAppliedEcology,ChineseAcademyofScience,Shenyang110016,China)Abstract:Theproposedimprovementinthispapertothecommonlyadoptedhybridanaerobictechnologyisinclinedtosolvetheproblemoftheslowstartingandlowtemperaturehome-sewagetreating.Asisknown,anaerobictechnologyiswidelyusedtotreathighconcentra-tionorganicindustrialsewage.However,itisdifficulttotreatlowconcentrationorganicdomesticsewage(chemistryoxygendemand,COD1000mg/L)atthelimitedlowtemperatures(20℃).Thedifficultycanbeovercomeifthehybridandtwo-phaseanaerobictechnologycanbeappliedthroughsuccessfulcombination.Startingfromthisneed,thepresentpaperhasdesignedanewkindofanaero-bicequipmentfortreatinghome-sewage,whichconsistsofthetwo-phaseUBF(up-flowanaerobicsludgebed(UASB)andanaerobicfil-trate(AF))andthedeviceofthecircumfluencesludge.WhentheUASBwasplacedundertheAF,theywouldtakeuponethirdofthecubageofthewholeequipment,whichiscasedintheUASBsothatitcouldremovetheCODeasily.TopreservetheCODremovalability,theAFwasusedtopreventthelossofsludgeintheanaerobicequip-ment.Theotheronethirdcubageisthesegregatorandeffluentdefe-catingparts,whichareplacedonthetopoftheanaerobicequipment.ThedeviceforthesludgecircumfluenceintheequipmentisthepartofUASB,whichi