UASB和EGSB反应器降解挥发省略脂肪酸VFAs性能的对比研究杨燕妮

:2010-07-22:(2008BADC4B13);863(2008AA062401):(1982-),,,,。:,E-mail:[e-mail](VFAs)杨燕妮1,杨慧芬1,王凯军2,郑明月1,郑明霞2(1.,　100083;2.,　100084)　:(20℃～25℃)UASBEGSB(VFAs),。,,EGSBUASB,,COD、、。EGSB,,EGSB。:UASB;EGSB;(VFAs);:S216.4;X703　　:A　　:1000-1166(2011)01-0007-05ComparativeStudyonthePerformanceofUASBandEGSBReactorsTreatingVolatileFattyAcids(VFAs)/YANGYan-ni1,YANGHui-fen1,WANGKai-jun2,ZHENGMing-yue1,ZHENGMing-xia2/(1.UniversityofScienceTechnologyBeijing,Beijing100083,China;2.TsinghuaUniversity,Beijing100084,China)Abstract:Atroomtemperature(20℃～25℃),UASBandEGSBreactorwereruntotreatthevolatilefattyacids.Differentinfluentconcentrationandflowratewereusedtochangetheloadingrateofthereactors.TheCODremovalrate,pHvalues,alkalinityofreactorsweremeasuredasindicators.TheresultsshowedthattheEGSBreactorhadadvantagesofhighCODremovalrate,stableoperation,andhighimpactresistanceabilitycomparingwithUASBreactor.EffluentrefluxinginEGSBreactorincreasedflowvelocityandenhancedmasstransfer,andsoEGSBreactorhashighprocessingefficiencyandopera-tionstability.Keywords:UpflowAnaerobicSludgesBed(UASB);ExpandedGranularSludgeBed(EGSB);VolatileFattyAcids(VFAs);operationcomparison　　(UpflowAnaerobicSludgesBed,UASB)WagningenLettinga2070。、,[1～5]。(ExpandedGranularSludgeBed,EGSB)UASB,[2,3,6]。EGSB,;,;COD;;。EGSB、UASB,UASB,。。,[7～13],[7,9,13]。,[14]。,。UASBEGSB(20℃～25℃),。7ChinaBiogas2011,29(1)1　、1.1　实验装置和材料UASBEGSB,2.9L,,1。3,1(R1)UASB,2(R2)3(R3)EGSB。3COD500mg·L-1,COD2.5kg·m-3d-1。UASB0.15～0.3m·h-1,EGSB17.5∶1,5.7m·h-1。1.;2.;3.UASB;4.EGSB;5.;6.;7.;8.1　UASBEGSB　　,(25℃),,80.7gVSS·L-1,1L。　　,(COD∶CODCODCOD=1151.8),R1R2,R3。CNP=200～30051,1L:NH4Cl170g,KH2PO437g,CaCl2·2H2O8g,MgSO4·4H2O9g。,1L:FeCl3·3H2O2000mg,CoCl2·6H2O2000mg,MnCl2·4H2O500mg,CuCl2·2H2O30mg,ZnCl250mg,H3BO350mg,(NH4)6Mo7O24·4H2O90mg,Na2SeO3·5H2O100mg,NiCl2·6H2O50mg,EDTA100mg,36%1mL。NaHCO3pH,pH6.5～7.5,。1.2　分析方法COD:HACH();pH:HACHSension1PH;:、;VSS:[15]。2　2.1　UASB和EGSB降解丙酸的性能比较,,。R1R2COD500mg·L-1,2.5kgCOD·m-3d-1。R146,R2104。2。2　UASBEGSB2.1.1　UASBEGSB2,COD,14.4L·d-1,500mg·L-1COD,R1COD8ChinaBiogas2011,29(1)80%～90%,88.6%;R2COD90%,EGSBUASB。COD100mg·L-1,R17.2L·d-1,R2,R1R2COD,,R196%,R292.5%。,。R1R2COD2.5kg·m-3d-15kg·m-3d-1。2.1.2　UASBEGSBCOD2000mg·L-1,。R1COD,96%75.5%,,70%～80%,,87.4%。R2COD,,COD95%。,R1R25kgCOD·m-3d-110kgCOD·m-3d-1。R12000mgCOD·L-1,,5000mgCOD·L-1,,。5000mgCOD·L-16,COD48.2%,COD12.5kg·m-3d-1。COD3000mg·L-1,,COD,2692.2%。,,,14.4L·d-1,COD7.5kg·m-3d-115kg·m-3d-1。,COD92%27.1%,30%～70%,46,R1COD36.2%,,R1,COD15kg·m-3d-1。,UASB。R2。,COD,,COD,。2,R2COD6000mg·L-17000mg·L-1,R235kgCOD·m-3d-1,COD,COD90%58.2%,60%～70%。131,COD8000mg·L-1,COD,COD55%,COD40kg·m-3d-1。UASBEGSB,,UASB,COD15kg·m-3d-1,。EGSB,,。2.1.3　UASBEGSB2,,EGSBUASB,COD。,EGSBCODUASB,5kg·m-3d-12.5kg·m-3d-1。,,EGSBUASB2,,EGSBUASB。EGSBCOD6000～7000mg·L-1,。,UASBEGSBCOD15kg·m-3d-140kg·m-3d-1。EGSBUASB2。,,:,EGSBUASB,。UASB,EGSB,UASB。,EGSB。,,,;,,9ChinaBiogas2011,29(1),,。2.2　EGSB降解不同基质的性能比较EGSB,R3,R2,EGSB。R3(COD∶CODCODCOD=1151.8),,R2,。3。3　EGSB　　3,COD500～1000mg·L-1,R3CODR2,R395%～98%,R290%～94%。,COD,,,,COD,,,EGSB。COD6000mg·L-1,R2CODR3。,R2R3COD,。,COD40kg·m-3d-1。R2R3COD55.7%54.2%。EGSB,EGSB。2.3　丙酸厌氧降解　　。、、,,,。UASBEGSB,,EGSBUSAB。EGSBUASB,UASBCOD3000mg·L-1,,EGSB6000～7000mg·L-1。UASBEGSB,UASB。,,。2　(1)UASB,EGSB。6000～7000mg-COD·L-1,UASB3000mg-COD·L-1,EGSBUASB。EGSBUASB,。,、,EGSB。(2)EGSBUASB。,UASB,,,。EGSB。,EGSB。(3)EGSBUASB,EGSB,,,,。,EGSBUASB,,。(4),EGSB(15)10ChinaBiogas2011,29(1)[5]　SkoulouV,ZabaiotouA.Investigationofagriculturalandanima1wastesinGreeceandtheirallocationtopotentialapplicationforenergyproduction[J].RenewableandSustainableEnergyReview,2005,12:1-22.[6]　AlMasriMR.Changesinbiogasproductionduetodiffer-entratiosofsomeanimalandagriculturalwastes[J].BioresourceTechnology,2001,77:97-100.[7]　LehtomakiA,HuttrnenS,RinralaJA.Laboratoryinvesti-gationsonco-digestionofenergycropsandcropresidueswithcowmanureformethaneproduction:Effectofcroptomanureratio[J].ResourcesConservationRecycling,2007,51:591-609.[8]　.[M].:,1985:312-313.[9]　,,,.[J].,2010,26(5):251-256..[10],,,.[J].,2009,28(6):1273-1278.[11],,,.[J].,2008,26(1):50-54.[12]ChyiYT,DagueRR.Effectsofparticulatesizeinanae-robicacidogenesisusingcelluloseasasolecarbonsource[J].WaterEnvironRes,1994,66:670-678.[13]LettingaG.Laboratoryworkmanual[G]//In:1stInt.CourseonAnaerobicandLowCostTreatmentofWastesandWastewaters.TheNetherlands:IACandWAU,1994.[14],,RudolfWalder.[M].:,2006:113-133.(10)UASB。,,。:[1]　LettingaG,etal.Useoftheupflowsludgeblanket(USB)reactorconceptforbiologicalwastewatertreatment,espe-ciallyforanaerobictreatment[J].BiotechnolandBioengi-neering,1980(22):699-734.[2]　,.[M].:,1998.[3]　.[M].:,2003.[4]　GeorgeRZoutber,Peterdebeen.TheBiobedEGSBsys-temcoversshortcomingsoftheUpflowAnaerobicSludgeBlanketReactorinthechemicalindustry[J].WatSicTech,1997,35:183-188.[5]　JulesBvanLier,KatjaCFGrolle,AlfonsJMStams,Ev-erlyConwaydeMacario,GatzeLettinga.Start-upofathermophilicupflowanaerobicsludgebed(UASB)reactorwithmesophilicgranularsludge[J].ApplMicrobiolBio-techno,1992,37:130-135.[6]　.[J].,1998,19(1):94-96.[7]　StaoshiFukuzaki,NaomichiNisshio,ManabuShobayashi