低浓度生活污水厌氧处理技术的认识误区

冯华军,沈东升(,310029):,,:;;;;;:X703;S21614:A:1000-1166(2005)04-0010-04:2005-04-25:2005-08-23:(1980-),,,,MisapprehensionintheAnaerobicTreatmentofLowStrengthSewage/FENGHua-jun;SHENDong-sheng/(DepartmentofenvironmentalEngineering,ZhejiangUniversity,Hangzhou310029,China)Abstract:Anaerobicsewagetreatmenthasadvantagesoveraerobictreatment.Yettheformertechniquesisnotwildlydevelopedandapplied,speciallytheapplicationstothelowstrengthwastewatertreatment.Thereasonisthattherearesomemisapprehensionsovertheanaerobictechnique.Themisapprehensionsareanalyzedinthispaper,hopingbetterunderstandingonthetechniqueandpromotingitsdevelopment.Keywords:lowstrengthwastewater;domesticsewage;anaerobictreatment;misapprehension1881/Cosmos0,[1]2050,2060(AF),1974LettingaUASB,[2],,,,,,,,1,(),,;,,(),CO2CH4N2,,,25%~40%,60%~75%,,[3],()2,,10ChinaBiogas2005,23(4),90%COD,5%~10%,,,,,,(1)11.;2.;3.;4.;5.;6.,;71;8.;9.1.;2.;3.;4.SO42-;5.;6.;7.;8.NH4+40~70mg#L-11.5~10;2.5%~20%;3.5%~20%;4.;5.1000kgCOD500~1000kWh,;6.1000kgCOD12166@106kJ33.1反应速度慢,停留时间长(F/M)015~110gBOD#(g#d)-1,011~015gBOD#(g#d)-1,,,MLVSS5~105~10kg#(m3#d)-1,015~1kg#(m3#d)-1,10[4],,(HRT),(HRT),10~20d,/0/0[5]20~30min,5~15d,,[6],15~20d[7],[8]3.2氧气对厌氧反应器会产生致命影响ORP(-)50mV,300~500mV,ORP-100mV,ORP-100mV~50mV[9],(DO),[10]Mario,,DO[11]1214mg#L-1,,,,,,11ChinaBiogas2005,23(4),;,100~300Lm[12],,,,,,[13],,,DO(UASBEGSB)1985AndesRPA(),COD[14]3.3厌氧反应器不适合处理低浓度废水,Monod,:,,[11],,,LettingaUASB8~20e,HRT12h,COD500mg#L-1,COD6615%[15];MarioT.Kato30eEGSBCOD100~200mg#L-1,12gCOD#L-1d-1,80%[11]SalihCOD500~800mg#L-1,10~12eEGSB,HRT116h,COD90%[16]3.4厌氧反应器不适合在低温下运行(30~35e)(50~55e)[17],,,,,,25e15dSRT[18],15e75d[19],,(SS)[18~21]UASBE=3107@104J#mol-1,,[8]Let-tingaEGSB15e~20e,COD666~886mg#L-1,HRT214h,OLR10gCOD#L-1d-1,COD70%~91%[22]DeMan:12e~18e,COD500~700mg#L-1,HRT7~12h,CODBOD40%~60%50%~70%[23],15e35e4mmol#L-1,45%51%[24],,:1.,;2.,,;3.;4.,,UASB,;5.[25]4,12ChinaBiogas2005,23(4),(,),,,,[26],,50,,,,,UASB,,[25]:[1]-,.UASB[J].,2004,34(2):261~268.[2],.[J].,2001,20(3):323~329.[3]GossettJM,RLBelser.Anaerobicdigestionofwasteactivatedsludge[J].J.Environ.Eng.Div.Am.soc.CivilEng.1982,108p:1101~1120.[4]GossettJM,RLBelser.anaerobicdigestionofwasteactivatedsludge[J].J.Environ.Eng.Div.Am.Soc.CivilEng.1982,108:1102~1120.[5]1[M]1:,2001.[6],1[J]1,1997,10(1):40~43.[7],1[J]1,1995,13(1):12~15.[8].UASB[J],,1995,23(2):192~196.[9],1[J]1,2003,21(6)::27~30.[10]Whitman,WB,BowenTL,BooneDR.Themethanogenicbacteria.inTheprokaryotes[M],Newyork:Springer-Ver-lag,1992,719~797.[11]MarioT.Kato,JimA.FieldandGatzeLettinga.TheanasrobictreatmentoflowstrengthwastewatersinUASBandEGSBre-actors[J].Wat.Sci.Tech,1997,36(6~7):375~382.[12]deBeerD.Microelectrodestudiesinbiofilmsandsediments.Ph.D.thesis,UniversiteitvanAmsterdam.Amsterdam,TheNetherland.1990.[13]RolfeRD,HentgesDJ,CampbellBJ,BarretJT.Factorsre-latedtotheoxygentoleranceofanaerobicbacteria[J].Appl.Env.Microbiol,1978,36:306~313.[14]1[J]1,1998,16(2):11~151[15]Lettinga.G.etal.AnaerobictreatmentofrawdomesticsewageatambienttemperatureusingagranularbedUASBreactor,Biotech.BioEng.1983,25.1701~1723.[16]Salih,Rebac,JulesB.Vanlier,PietLens.Psychrophilicanaer-obictreatmentoflowstrengthwastewater.WaterScienceandtechnology,1999,39(5):203~210.[17],,1()1,2004,30(2):98~101.[18]MironY,etal.Theroleofsludgeresidensetimeinthehy-drolysisoflipids,carbohydratesandproteinsduringtheanaerobictreatmentofdomesticsewage[J].WatRes,2000,34:1705~1713.[19]ZeemanG,LettingaG.Theroleofanaerobicdigestionofdo-mesticsewageinclosingthewaterandnutrientcycleatcom-munitylevel[J].Wat.SciTech,1999,39:187~194.[20]ElmitwalliTA,etal.Anaerobictreatmentofdomesticsewageatlowtemperature[A].ProceedingsoftheVlLatin-Amer-icanWorkshopandSeminaronAnaerobicDigestion[C].2000.[21]KalogoY,VerstraeteW.TechnicalfeasibilityofthetreatmentofdomesticwastewaterbyaCEPS-UASBsystem[J].Env-ironTechnol,2000,21:55~65.[22]LettingaG,deManA,vanderLastA,KatoM,WangK,Re-bacS.Possibleroleofanaerobicdigestioninsewagetreatmentundermoderateclimaticconditions[A].The2ndJapan/DutchWorkshoponWaterQualityManagement[C].Ube,Japan.1993.[23]LucasSeghezzo,GrietjeZeeman,JulesB.AReview:TheanaerobictreatmentofsewageinUASBandEGSBreactors[J].BioresourceTechnology,1998,65:175~190.[24],,1pH[J]1,2001,11(1):30~321[25]MichaelS.Switzenbaum.Obstalesintheimplementationofanaerobictreatmenttechnology[J],BioresourceTechnology,1995,53:255~262.[26],,,.[J].,2002,3(8):63~66.13ChinaBiogas2005,23(4)