不同种泥对两相厌氧工艺快速启动的影响施悦

39　820078　　　　　　　　　JOURNALOFHARBININSTITUTEOFTECHNOLOGY　Vol.39No.8Aug.2007　　　　　　施　悦,任南琪,刘春爽,章育铭,陈兆波(,150090,E-mail:[e-mail])　:采用接种普通好氧污泥和缺氧污泥处理中药难降解废水并进行小试试验,考察两种污泥对两相厌氧工艺快速启动的影响.结果表明:采用本中心开发的专利高效两相厌氧反应器,好氧污泥和缺氧污泥的启动几乎可以获得相同的启动速度,30d以内就可实现快速启动;好氧污泥启动承受的负荷更高,抗冲击负荷能力更强(产甲烷相反应器在容积负荷为7～9kgCOD/(m3d)时,两相系统的总容积负荷为6～8kgCOD/(m3d)时,去除率都在90%以上);扫描电镜照片表明好氧污泥启动的种群更丰富,生态结构更合理.建议处理高浓度难降解废水时以好氧污泥接种,既能够经济地实现快速启动又能在高负荷下稳定运行.:快速启动;污泥接种;两相厌氧工艺;中药废水;高浓度有机废水:X703:A:0367-6234(2007)08-1257-05Effectofdifferentseedsludgeontherapidstart-upoftwo-phaseanaerobicprocessSHIYue,RENNan-qi,LIUChun-shuang,ZHANGYu-ming,CHENZhao-bo(SchoolofMunicipalandEnvironmentalEngineering,HarbinInstituteofTechnology,Harbin150090,China,E-mail:[e-mail])Abstract:Alaboratory-scaleexperimentwasconductedfedwiththewastewaterfromproductionoftraditionalChinesemedicinebyseedingtheanoxicandaerobicsludge.Theexperimentsdemonstratedthatapplyingthepatentandhigh-poweredtwo-phaseanaerobicreactorsinventedbyourresearchcenter,almostthesamespeedofstart-upcouldbeachievedafterseedingtheanoxicandaerobicsludge.Rapidstart-upcanbereal-izedwithin30days.Thevolume-loadingratewhichaerobicsludgestart-upsystemcanstandwashigherthananoxicsludgestart-upsystem.Andtheabilityofresistancetotheshockloadingofaerobicsludgestart-upsystemwashigher,too.(Therangeofsuitablevolume-loadingrate7-9kgCOD/(m3d)atmatha-nogenicphaseand6-8kgCOD/(m3d)attwoanaerobicsystem,bothCODremovalwereabove90%).Furthermore,fromthescanelectronmicroscopemicroorganismphotostakenintwo-phaseanaerobicreactors,therichnessofbacteriacommunitiesandsuitableecologystructureofaerobicsludgestart-upsystemwereob-served.Thereforeitwassuggestedthataerobicsludgetoseedreactorswasmoresuitabletotreathighstrengthrefractorywastewater.Inaddition,italsocouldrealizerapidstart-upeconomicallyandstablerunningunderhighvolume-loadingrate.Keywords:rapidstart-up;seedsludge;two-phaseanaerobicprocess;wastewaterfromproductionoftradi-tionalChinesemedicine;highstrengthorganicwastewater:2005-11-15.:(2002AA601310);(GA01C201-01).:　(1977—),,,;(1959—),,,,,.　　,,,,,8～12,、[1]..[2].、.,、[2,3-6],;,[7-9],.、.,.1　试验材料和方法1.1　1,:(CSTR:ZL98240801.3),9.13L;+(UASBAF),(ZL96251960.X),40.56L.1　1.2　3:(),(),(),1∶1∶0.6,2/5,2/3..31d(,ρ(VSS)=15.76g/L,ρ(DO)=0mg/L),,.,、、(m(COD)∶m((N)∶m(P)=200～300∶5∶1),7d,,,,(ρ(VSS)=15.32g/L),.1.3　().(ρ(COD)=20000mg/L),(m(BOD)/m(COD)0.2),.1.4　35℃;12h53.4h;Q=0.76L/h;Q=12L/h;NaHCO3,2000mg/L(CaCO3).COD1.1　CODCOD/(mgL-1)/d/d30001～391～15400040～4816～28600049～5429～62800055～6163～811000062～8482～941200085～10295～1021.5　《》(3)COD、SS、VSS、pH.(SEM:S4700,).2　不同接种污泥对两相厌氧反应器启动和运行的影响2.1　COD2,26dCOD1258　　　　　　　　　　　　　　　　　　　　　39　3000mg/L,COD59.12%,;,29dCOD5500mg/L,COD60.92%,.,COD,80%.65～77d,COD61.59%,,80d:COD86.1%,pH4.4～4.8.,80d;,COD90.79%～94.53%.:1),,,30d.1～2,.2),,pH、,.3),、.2　COD(:63～74d)2.2　COD3.,CSTR,:23dVFA/COD63.65%,23dVFA/COD88.89%,,,.COD(Fig.3(a),(b)),(Fig.3(c),(d)).:7kgCOD/(m3d)(Fig.3(a),(c),6kgCOD/(m3d)(Fig.3(b),12598　,:(d)).,7～9kgCOD/(m3d)(Fig.3(e)),6～8kgCOD/(m3d)(Fig.3(b),(c)),90%..3　COD2.3　(Fig.4),4　(Fig.4(a)),(Fig.4(b));,(Fig.4(c)),,(Fig.41260　　　　　　　　　　　　　　　　　　　　　39　(d)),.().3　结　论1),,,30d1～2,.2),,;.,、.,.3),;,,,,,,,.4)CSTR,.参考文献:[1].[J].,1996,16(5):1-3.[2]LIUYu.Mechanismsandmodelsforanaerobicgranula-tioninupflowanaerobicsludgeblanketreactor[J].Wa-terResearch,2003,37(3):661-673.[3]KAZUAKIS.Effectivestart-upofthermophilicUASBreactorbyseedingmesophilically-growngranularsludge[J].WaterScienceandTechnology,1997,36(6-7):391-398.[4]MORVAIL.Kineticbasisofanewstart-upmethodtoensuretherapidgranulationofanaerobicsludge[J].WaterScienceandTechnology,1992,25(7):113-122.[5]GOODWINJAS.Pre-granulatedseedsforUASBreac-tors,Hownecessaryarethey[J].BioresourceTechnol-ogy,1992,41(1):71-79.[6]BRITZTJ.Developmentofamethodtoenhancegranu-lationinalaboratorybatchsystem[J].WaterSA,2002,28(1):49-54.[7].[J].,1993,15(4):50-52.[8],.[J].,1995,15(1):5-9.[9],,.[J].,2001,27(5):27-29.(　刘　彤)12618　,: