高温厌氧消化污泥的培养试验研究韩育宏

＊韩育宏1　季　民2　柴建荣1,　白谏平1,　李　庆1(1.,071002;2.,300072):在试验室半连续装置中培养高温厌氧消化污泥,以中温厌氧污泥作为种泥,中温启动运行一段时间后,再逐步升温,经过100d运行可达到高温厌氧消化运行的良好状态。整个试验过程中无需人为调节碱度,pH值比较稳定。45℃以下,升温对厌氧消化系统的扰动比较小,之后继续升温至48℃,厌氧消化系统不稳定。认为45～48℃可能存在着中温和高温厌氧消化的临界温度,在这一温度下,中温细菌可能会大量死亡,但是不适合高温菌生长或对应着较低的生长速率。:中温;高温;厌氧消化污泥;临界温度CULTIVATIONOFTHERMOPHILICANAEROBICDIGESTEDSLUDGEHanYuhong1　JiMin2　ChaiJianrong1　BaiJianping1　LiQing1(1.CollegeofPhysicsScienceandTechnology,HebeiUniversity,Baoding071002,China;2.CollegeofEnvironmentalScienceandTechnology,TianjinUniversity,Tianjin300072,China)Abstract:Thecultivationofthermophilicanaerobicdigestedsludgewasachievedbyincreasingthetemperaturegraduallyfrommesophilicrangetothermophilicrangeinsemicontinuousexperimentsin100dseedingwithmesophilicanaerobicsludge.Intheexperiment,thealkalinityneednotberegulated,andthepHisstable.Theimpactofheatingontheanaerobicdigestionperformanceisnotsignificantbeforethetemepratureislowerthan45℃.But,theanaerobicdigestionperformanceisnotstableifthetemepratureishigherto48℃.Thecriticaltemperaturewithinmesophilicandthermophilicanaerobicmayexistbetween45℃and48℃.Underthetemperature,themesophilcbacteriaeswilldiemassivlyandthermophilicbacterialwillgrowslowly.Keywords:mesophilic;thermophilic;anaerobicdigestionsludge;criticaltemperature　　　　　　　　＊-;(A2007000127)。0　[1],,,,[2-3]。1993503,。,,。,,(55℃)。,,20。,,。,,[4]。,,。,。,[5]。1　1.1　试验污泥来源,ρ()25～35gL(2.5%～3.5%)。4℃。78　　　20092271DOI:10.13205/j.hjgc.2009.01.024,,(totalsolids,TS)ρ(TS)30gL,(VS)ρ(VS)15gL,ρ(TCOD)26gL。1.2　试验装置1,,2L。,。,,pH1,。2。,100mL,5%。100d,,(37℃)(1～44)、(45～78)、(55℃)(79～100)。,5,45,55,62,67,71,39,42,45,48,51℃。,。1—;2—;3—;4—;5—;6—;7—;8—。1　1.3　测定指标及分析方法(COD):[6];(TS)、(VS):;(VFAs):[7];pH:HI19321。2　2.1　产气量37℃44d,220,200mL。45,39℃,,。VFAs,53,ρ(VFAs)96.342,81.777mgL。45,42℃,,,,VFAs。62,45℃,,1300mL,2,300mL。67,48℃,,,VFAs。48℃,,。71,51℃,8d,,。VFAs,75,VFAs460.406,497.910mgL,51℃,,,,VFAs,。79,55℃,,。87,,310mL280mL,。VFAs,ρ(VFAs)100mgL。2。2　　2.2　有机物去除率3,、TCODTCOD。,,ρ(TCOD)21181.5,22051.3mgL,28.31%,27.04%。1239,42,45℃,,,,,,,TCOD,TCOD。,TCOD,,79　　　20092271,2。,TCOD,36.70%、37.54%,。3　TCOD　2.3　固体物质去除率4、5,TS、VS,TCOD。4、5,,,1000～2000mgL。45℃,,。,,TSVS,TCOD。,CO2,,,,。45～48℃,,,,。4　TS5　VS,KugelmanGuida[8]45℃,,。,45℃,55℃,,。2.4　pH值pH,,,pH。pH,,pH。,pH,CO2,。,,1、2pH6.98～7.50、7.04～7.69。,pH,,pH。pH,50～55℃,,,pH。3　1),,,100d。,。2)45℃,,。,。55℃,,。3),45～48℃。,45℃,55℃,,。(84)80　　　20092271:、、。d.3(SingleScore):,。3　,,。,。:1)SimaPro7.1,Eco-indicator99,。、,,,。2),,。[1]　,.[J].,2006,26(7):298-301.[2]　.[J].,1998(2):14-19.[3]　.[J].,2003(2):83-85.[4]　.[J].,2001,21(4):29-31.[5]　.[J].(),2000(3):6-10.[6]　.[J].(),1998(6):12-16.[7]　.[J].,2004,32(4):28-33.[8]　.[J].,2003,32(4):19-23.[9]　.[J].,1999(2):220-224.[10]　,.[J].(),2006(3):16-18.[11]　,.[J].,2006,19(1):24-25.[12]　,.[J].,2006,32(1):19-21.[13]　,.[J].,2003,55(3):72-75.[14]　,.[J].,2006,16(8):1456-1461.[15]　,.[J].,2002,22(4):519-522.[16]　,.[J].,2006,32(3):4-6.[17]　,.[J].,2004(4):122-128.[18]　.[D]:[].:,2005.　　100083　11()E-mail　[e-mail]2008-02-13(80)[1]　,.[M].:,2004.[2]　SongYoung-Chae,KwonSang-Jo,WooJung-Hui.Mesophilicandthethermophilictemprratureco-phaseanaerobicdigestioncomparedwithsingle-stagemesophilicandthermophilicdigestionofsewagesludge[J].WatRes,2004,38(7):1653-1662.[3]　MaibaumC,KuehnV.Thermophilicandmesophilicoperationofananaerobictreatmentofchickenslurrytogetherwithorganicresidualsubstances[J].Wat.Sci.Technol,1999,40(1):231-236.[4]　SosnowskiP,WieczorekA,LedakowiczS.Anaerobicco-digestionofsewagesludgeandorganicfractionofmunicipalsolidwastes[J].AdvanceinEnvironmentalResearch,2003,7(3):609-616.[5]　.[D]:[].:,2007.[6]　,.[M].:,1989.[7]　,,,.(VFA)[J].,2000,33(6):31-34.[8]　KugelmanIJ,GuidaVG.Comparativeevaluationofmesophilicandthermophilicanaerobicdigestion.projectsummary.EPA600S2～89001.Cincinnati,USA,1989.　　071002　180　E-mail　[e-mail]2008-07-1484　　　20092271