低温厌氧处理低浓度废水研究进展初里冰

初里冰　杨凤林　张兴文(,116023)　　。。(EGSB)。,(EGSB,(HUSB)+EGSB,(UASB)+EGSB)。。(3—12℃)、(COD1000mgL)。(30—40℃),。　　　　　ProgressinanaerobictreatmentoflowstrengthwastewaterunderpsychrophilicconditionsChuLibing　YangFenglin　ZhangXingwen(SchoolofEnvironmentalScienceandEngineering,DalianUniversityofTechnology,Dalian116023)Abstract　Thelatestprogressintheresearchofpsychrophilicanaerobictreatmentoflowstrengthwastewaterwasreviewed.Itwasfeasibleandattractivetousehigh-rateanaerobicreactors.EGSBwasthefirstselectedreactor.Whentreatingwastewaterwithalargeparticulateorganicfraction,itmaybeadvantageoustoapplyatwo-stageanaerobicpro-cess,suchastwo-moduleEGSB,HUSB+EGSB,UASB+EGSBandsoon.Newlydevelopedanaerobicmembranebio-reactorshowedpotentialforwastewatertreatment.Atpsychrophilictemperaturethemesophilicseedsludgeincubatedbylowstrengthwastewaterretainedthesatisfactorydevelopmentofthemethanogenicactivity.Theassessedtemperatureresponsecurvesofthepsychrophilicallygrownsludge(3—12℃)stillrevealedaclearoptimumtemperatureintheme-sophilicrange(30—40℃).Keywords　anaerobictreatment;lowstrengthwastewater;lowtemperature;EGSBreactor;anaerobicmem-branebioreactor:2002-06-13;:2002-09-04:(1971～),,,,。　　20,。,[1]:(1),;(2)3—20,;(3),。,,[2]。,。,(30—35℃)、。,(20℃)(COD1000mgL)。、、、、。,。,,,。1　,3:、。,、3。[3]。,20℃,15℃,0℃。20℃,15℃,0—5℃。,44Vol.4,No.420034TechniquesandEquipmentforEnvironmentalPollutionControlApr.2003。20—42℃,42—75℃。、[4]。,(psychrotro-phicmarinemethanogens)。,[5],(g/g)[6]。,。,Ks,35℃25℃,Ks164mgL930mgL。Ks,[7]。Arreh-nius[8]:rt=1.11r(t-30)30,t,rt、r30t℃30℃。Arrehnius20℃10℃30℃35%12%。。,,,、H2S,COD,。2　,。Monod,。[9]。,。,,,,、。,,。Mario[10],。,。3　EGSB、UASB、(ABR)、(ASBR)[11],。,[12]。1,(3—12℃)(30—40℃),。。,。,。(10℃)10℃30℃,,。,30℃[13]。,(decayrate)。,。[9]。4℃6,。,。1℃,,[14]。1　10℃300d(℃)(gCODgVSS·d)100.296(0.009)0.331(0.003)0.110(0.002)0.228(0.002)201.020(0.379)1.057(0.004)0.328(0.010)0.530(0.002)302.732(0.076)2.204(0.011)0.663(0.002)0.915(0.025)　　:4　。:(1),6242　EGSBCOD(mgL)(℃)HRT(h)COD(%)(L)VFA500—80010—121.6—2.590418VFA500—9004—82—4902×419VFA500—90034802×419500—800201.580—8522513500250.2—0.6804.720500—8008—123.567—682×41239116—191.5—5.816—3420521　　VFA:(HRT);(2)[15]。EGSB、。4.1　EGSBEGSB[16]UASB。,(4mh),,,。EGSB,,。[17]。EGSB(2)。,EGSB,EGSB。4.2　。Re-bac[13],(EGSB)EGSB。VFA。。,,(CH3CH2COO-+3H2O※CH3COO-+HCO-3+H++H2　ΔG0=76.1kJmol)。,,,。[22],。,。,。,,,,,。[23]HUSB+EGSB(COD300—700mgL),HUSB(),,,COD,COD,。EGSBCOD,COD。,HRT5.0h,15℃,CODSS71%83%;12℃,CODSS51%76%。,HUSB(200L)8—21℃,HRT3.0h,COD30%—50%。COD60%20%,SS77%—83%。,,,,。EGSB(120L)12—20℃,HRT2h,COD32%—58%,,,。UASB、UASB+EGSB(AF)、(AF)+(AH)[12]。4.3　,,,,。ChengWen634:3　COD(mgL)(℃)HRT(h)COD(%)(L)、500—8608—2310—4656—88ASBR(2)25、450—7808—246—2046—92AF(1.5)2550010—201060—70ABR(10)26135—2185—201—1035—77AEBR(2)27186201—570—80AAFEB28115—59513—254.770UASB(21.5)9500250.5—275UASB(4.5)20767.814.51278.9UASBITS(16.10)29　　AEBR:;AAFEB:;UASBITS:[24],。。,0.03μm,0.3m2。。12—27℃。15℃,COD70%;20℃,COD85%。12℃,COD88%。,。4.4　3。ASBRABR。ASBR,。ASBR。,,,。AS-BR4:、、。Dague[30]5℃ASBR,HRT6h,CODBOD562%75%。ABR[31],McCarty。,,。,,,。[26],SRT()HRT。,pH,。5　　。EGSB。EGSB,,。。,,。,。。,。,。,。。644[1]ZakkourP.D.,GaterellM.R.,GriffinP.Anaerobictreatmentofdomesticwastewaterintemperateclimates:treatmentplantmodelingwitheconomicconsiderations.Wat.Res.,2001,35(17):4137—4149[2]YujiSekiguchi,YoichiKamagata,HidekiHarada.Recentad-vancesinmethanefermentationtechnology.Biotechnology,2001,12:277—282[3]..:,2001.42—43[4],..,1999,26(2):155[5]NozhevnikovaA.N.,HolligerC.,AmmannA.,etal.Psy-chrophilicmethanogenesisinsedimentsofdeeplakes.Wat.Sci.Tech.,1997,36:57—64[6]vanLierJ.B.,RebacS.,LensP.,etal.Anaerobictreatmentofpartlyacidifiedwastewaterinatwo-stageexpandedgranularsludgebed(EGSB)systemat8℃.Wat.Sci.Tech.,1997,36(6—7):317—324[7]R.E.()..:,2001.35—139[8],..:,2001.5—46[9]ShigekiUemura,HidekiHarada.TreatmentofsewagebyaUASBreactorundermoderatetolowtemperatureconditions.BioresourceTechnology,2000,72:275—282[10]MarioT.Kato,JimA.Field,PaulVersteeg,etal.Feasibil-ityofexpandedgranularsludgebedreactorfortheanaerobictreatmentoflow-strengthsolublewastewaters.BiotechnologyandBioengineering,1994,44:469—479[11]GourangaC.Banik,TimothyG.Ellis,RechardR.Dague.StructureandmethanogenicactivityofgranulesfromanASBRtreatingdilutewastewateratlowtemperatures.Wat.Sci.Tech.,1997,36(6—7):149—156[12]LettingaG.,RebacS.,ZeemanG.Challengeofpsychrophilicanaerobicwastewatertreatment.TRENDSinBiotechnology,2001,19(9):363—370[13]RebacS.,vanLierJ.B.,LensP.Psychrophilicanaerobictreatmentoflowstrengthwastewaters.Wat.Sci.Tech.,1999,39(5):203—210[14]RebacS.,GerbesS.,LensP.,etal.Kineticsoffattyaciddegradationbypsychrophilicallygrownanaerobicgranularsludge.BioresourceTechnology,1999,69:241—248[15],,..,2001,16(2):25—29[16]Razo-FloresE.,SmuldersP.,Prenafeta-BoldúF.Treatmentofanthranilicacidinananaerobicexpandedgranularsludgebedreactoratlowconcentrations.Wat.Sci.Tech.,1999,40(8):187—194[17]RichardM.,DinsdaleFredaR.Anaerobicdigestionofshotchainorganicacidsinanexpandedgranularsludgebedreac-tor.Wat.Res.,2000,34(9):2433—2438[18]RebacS.,RuskovaJ.,GerdensS.,vanLierJ.B.,etal.High-rateanaerobictreatmentofwaste