ASBR处理高浓度悬浮固体废物的工艺特性王治军

ASBR1,3,2,1(1.,　518055;2.,　100084;3.,　400016):(HRT)20、10、7.5、5d,、(ASBR),ASBR.ASBR,ASBR“”,,,.,ASBR(SRT)(MCRT),,SRTMCRT(HRT)2.53～3.73、2.03～3.14.,(CSTR),ASBR7.13%～34.68%.:;;;:X703;X505　:A　:0250-3301(2006)06-1107-04:2005-05-03;:2005-06-27:(1973～),,,,、,E-mail:[e-mail]obicSequencingBatchReactorfortheTreatmentofHigh-Solids-ContentWasteWANGZhi-jun1,3,WANGWei2,ZHANGXi-hui1(1.ResearchCenterforEnvironmentalEngineering&Management,ShenzhenGraduateSchool,TsinghuaUniversity,Shenzhen518055,China;2.DepartmentofEnvironmentalScienceandEngineering,TsinghuaUniversity,Beijing100084,China;3.DepartmentofMilitaryRealEstateManagementandEnvironmentalEngineering,LogisticalEngineeringUniversityofPLA,Chongqing400016,China)Abstract:Basedontheexperimentsofdigestionofthermo-hydrolyzedsewagesludgeinbothmesophilicandthermophilicanaerobicsequencingbatchreactors(ASBRs)with20,10,7.5,5dhydraulicretentiontime(HRT),operatingcharacteristicsofASBRfortreatmentofhigh-solids-contentwastewereinvestigated.ASBRcanefficientlyaccumulatessuspendedsolidsandkeephighconcentrationsolids,howeverthereexistsa“criticalpoint”ofASBR,whichmeansthemaximumcapabilitytoaccumulatesuspendedsolidswithoutnegativeeffectsonASBRstability,andbeyondwhichtheperformancedeteriorates.Understeadycondition,ASBRcansustainshighsolidretentiontime(SRT)andmeancellretentiontime(MCRT),theSRTandMCRTis2.53～3.73and2.03～3.14timesofhydraulicretentiontime(HRT)whentreatingthermo-hydrolyzedsludge,respectively.Therefore,comparedtotraditionalcontinuous-flowstirredtankreactor(CSTR),theefficiencyofASBRenhancesabout7.13%～34.68%.Keywords:anaerobicsequencingbatchreactor(ASBR);solidretentiontime;meancellretentiontime;criticalpoint　　(anaerobicsequencingbatchreactor,ASBR),(UASB)(SS:2%～5%),[1,2][3].“-ASBR”[4],ASBR,ASBR.1　1.1　1.3(Ⅰ、ⅡⅢ)15cm、28cm.4L,3L,1L.,.Ⅰ55℃±1℃,ⅡⅢ35℃±1℃,NaCl(5),.1.2　,31,.(GSH-10,)27620066　　　　　　ENVIRONMENTALSCIENCEVol.27,No.6Jun.,2006DOI:10.13227/j.hjkx.2006.06.0141　Fig.1　Schematicdiagramofanaerobicdigestionsystem,170℃、30min.()(3℃),35℃.(TS):20.81～40.41g/L,SS:18.23～30.36g/L;TKN:1098～1445mg/L;(CaCO3):723～1280mg/L,COD(TCOD):30～50g/L,COD(SCOD):7～13g/L.1.3　3CSTR,80d,ⅠⅢASBR,ASBR、ASBR.Ⅱ,CSTR,CSTR.3(HRT)20、10、7.5、5d400d.ASBR(24h)(15min)、(20h)、(3.5h)(15min)4.1.4　TS、VS、SS、VSS:;COD:;TKN:;:ZDJ-4A;:;:SQ-206(TCD);pH:Orion868pH.2　2.1　ASBR,ASBR,,.ASBR,.185d,ASBR(TS)94.25g/L,CSTRTS22g/L.ASBR,186d,,6.70L/d5.10L/d,.“”.,(2),ASBRTS160g/L,30%,35%(3),40%,..2　Fig.2　Profilesofsolidsubstanceincriticalpoint3　Fig.3　ProfilesofratiosofVSStoSSincriticalpoint　　,ASBR,ASBR.,1,.ASBR,.ASBR,,“”,ASBR,,ASBR.2.2　1108　　　　　　27(、、),(SS:2%～5%),,[5].,(solidretentiontime,SRT),SRT.,CSTR,HRTSRT,HRT15～30d.SRT[6].,,,SRT(meancellretentiontime,MCRT),SRT=MCRT,(VSS)VSS.,,,VSS.SRT,SRTMCRT.VSSVSSSRT,4.4,、ASBRSRTHRT2.57～3.73.ASBRSRT4,[7],,.SRT.DuckChangASBR,ASBR1d,,12～14h,3d,4d,,,(VS)20%～30%[8].SRT,[9].ASBR,,SRT.2.3　(MCRT)MCRT,1.,1MCRT.,,,0.125d,3.5d,0.5d,1.5d,7.0d,MCRT.4　SRTHRTFig.4　ComparisonofSRTandHRT,,VSS,[10],.,[11,12].1nmolP(E.coli)108..5HRT7.5d,、ASBR.5　ASBR(HRT=7.5d)Fig.5　ProfilesofmicroorganisminASBR(HRT=7.5d),,ASBR.ASBR,ASBRMCRT.HRT7.5d、5d,ASBRMCRT16.76d、10.18d,HRT2.23、2.03;ASBRMCRT23.55d、13.12d,HRT3.14、2.6211096　　　　　　.,ASBR,MCRT.2.4　63.HRT20、10、7.5、5d,ASBRTCODCSTR12.38%、27.93%、31.16%、34.68%().ASBRTCODCSTR7.13%、16.59%、28.21%、30.52%().HRT,CSTRASBR,ASBRCSTRTCOD.7,ASBR、ASBRCSTR.6　3TCODFig.6　TCODremovalrateofthreereactors7　3Fig.7　MethaneproductionrateofthreereactorsCSTR,HRT=SRT=MCRT,HRT,ASBRSRTMCRT,ASBR.,ASBRHRT、.,,60%TCOD,CSTRHRT20d,ASBR10d.3　　　(1)ASBR,,,ASBR“”,,,,ASBR.(2)ASBR,(SRT)(MCRT).,SRT.(3)ASBR,SRTMCRT,(CSTR),HRT、.:[1]MasséDI,DrosteRL.Potentialforthepsychophilicanaerobictreatmentofswinemanureinusingasequencingbatchreactor[J].CanadianAgricultureEngineering,1997,39(1):25～33.[2]AngenentLargusT,SungShihwu,RaskinLutgarde.Methanogenicpopulationdynamicsduringstartupofafull-scaleanaerobicsequencingbatchreactortreatingswinewaste[J].WaterResearch,2002,36(18):4648～4654.[3]LeeJG,HurJM.Performancecharacterizationofanaerobicsequencingbatchreactorprocessfordigestionofnightsoil[J].WaterScienceandTechnology,2001,43(1):27～34.[4].“-ASBR”[D].:,2005.[5]VavilinVA,RytovSV,LokshinaLYa.Adescriptionofhydrolysiskineticsinanaerobicdegradationofparticulateorganicmatter[J].BioresourceTechnology,1996,56(2-3):229～237.[6]PeterN.Hobson,AndrewD.Wheatley.Anaerobicdigestionmoderntheoryandpractice[M].England:GalliardLtd,1992.259～260.[7]PinnekampJ.Effectsofthermalpretreatmentofsewagesludgeonanaerobicdigestion[J].WaterScienceandTechnology,1988,21(4-5):97～108.[8]DuckChang,JoonMooHur,TaiHakChung.Digestionofmunicipalsludgebyanaerobicsequencingbatchreactor[J].WaterScienceandTechnology,1994,30(12):161～170.[9].のメタンプロセスにする[D].:,1988.[10].ののと[J].,2002,43(5):209～213.[11]FindlayRH,KingGM,WaltingL.Efficacyofphospholipidsanalysisindetermingmicrobialbiomassinsediments[J].Appl.Environ.Microbiol.,1989,55(11):2888～2893.[12]NarasimmaluR,OsamuM,NorifumiI,etal.Variationinmicrobialbiomassandcommunitystructureinsedimentsofeutrophicbaysasdeterminebyphospholipid