pH值对碱处理污泥厌氧发酵产氢的影响

50242005122734*(,100085.*,E-mail:[e-mail])pH.,,,.pH.pH11.0,,14.4mL/g(VS).pHpH.pH9.5.8.5pH.pH.pHSCOD..pH.pH,.,,[1,2].,[1,3].,,,.,(),.3:(1)pH,(2),(3)[4].,,,[5].[5],1)[6].,[2,7].,,.,[2,7~9][10~12].Clostridiumbifermentans[10~12].Lin2),1.7g(H2)/kg(TCOD)..pH,pH[13~15].,pH.pH.11.1,30000.pH6.9(0.2),(COD)(SCOD)11500158mg/L,(TS)(VS)1520010900mg/L.,,1)SungS,RakinL,DuangmaneeT,etal.Hydrogenproductionbyanaerobicmicrobialcommunitiesexposedtorepeatedheattreatments.Pro-ceedingofthe2002U.S.DOEHydrogenProgramReview,20022)LinHY,TsaiYY,WuRH.Studyofhydrogenproductionfromtheanaerobicdigestionofhydrolyzedbiologicalsludge.TheTwenty-sixthWastewaterTechnologyConference,Kanhsiung,Taiwan,20015024200512(0.1),pH5min.17~24)12h..1.3300mL,,.200mL,,.140~150r/min,(37±1).3,3.1.4[16].1mL,..5mL.()pH(PHS-3C,)SCOD(CTL-12COD,).TSVS[17].1.5Gompertz((1))[18,19]:()()expexp1,mReHtPtPl⎧⎫⎡⎤=⋅--+⎨⎬⎢⎥⎣⎦⎩⎭(1)H(t):(mL);P:(mL);Rm:(mL/h);l:(h);e:,2.718281828.P,RmlMatlab6.5(MathWorksIncCoryRight2001~2002)[14,20].(2)(3):(mLg-1(VS)h-1)=m,R(2)(mL/g(VS))=.P(3)22.1,pH(pH11.3±0.1),,.(10.3g(VS)/L).1.,,11.9mL/g(VS)..Wang[10,11]Clostridiumbifermentans(46.7~65.3mL/g(VS)),,.,,.12.2pH,pH.6mol/LNaOH6mol/LHClpH2.5,4.0,6.0,8.0,10.5,11.012.0(±0.1),.8.1g(VS)/L.2pH,1.,pH2.5,pH4.2(),50242005122736(P),43.1mL14.4mL/g(VS).pH10.5,(Rm),0.21mLg-1(VS)h-13.2mL/h.pH12.0,(l)(14.3h),pH6.0,l(6.4h).12,2pHpHpH.,pHpHpH.,H2CO2(2)1).2,pH.pHSCOD.3pHSCOD.,,SCODpH3pHSCOD1pHpHP/mLRm/mL·h-1l/h/mL·g-1(VS)·h-1/mL·g-1(VS)2.5-----4.07.00.512.90.042.36.03.71.06.40.071.38.05.01.47.50.091.710.528.93.26.50.219.711.043.12.212.60.1414.412.042.21.514.30.1014.12pHGibbsΔGo/kJmol-1pH7pH8pH9pH10pH116126222CHO+6HO12H+6CO→-26.26126232CHO+6HO+6OH6HCO+12H--→-23.8-59.32612632CHO+12OH6CO12H--→+-78.2-149.261262322CHO+2HO2CHCOO2H2CO4H-+→+++-215.76126332CHO+4OH2CHCOO2HCO4H---→++-223.9-247.6261263232CHO+6OH2CHCOO2HO2CO4H---→+++-265.7-301.23222CHCOO2HOH2CO4H-+++→++94.83232CHCOO3HOOH2HCO4H---++→++100.1+94.123232CHCOOHO3OH2CO4H---++→++93.7+76.01)KeltjensJT,GeertsWJ.Fermentativehydrogenproductionunderalkalineconditions.=20602&ctxid=10125024200512:pH,pH.,,,.pHVFANH4+-N.[14,15],pH.,NH4+-NVFA,pH[21].4pH,pH,pHpH.pH5.0~5.5()[10~12]7.0().,pH9.5,.:(1),;(2),,.,24,pH10.5,,10.5pH.pH,,pH(10.5,11.012.0),(2).24,pH8.5.,8.5pH.,,(ClostridiumDesulfotomaculum,),[22].,.VFA.pHVFA(76.5h),3.3,VFA(68%~78%),(6%~11%).VFA[6],,,.3,3pHVFApHVFA/mg·L-1/%/%/%/%4.0291.369.512.36.411.96.0329.974.810.110.34.88.0515.368.512.110.49.010.5787.868.411.88.311.511.0914.268.513.29.68.712.0765.177.812.26.13.850242005122738(1)pH.pH11.0,14.4mL/g(VS).pHpH.pH9.5.8.5pH,.(2)pHSCOD.,pH,VFA.VFApH..(:20277043).1ParkinBGF,OwenW.Fundamentalsofanaerobicdigestionofwastewatersludges.JEnvironEngASCE,1986,112(5):867~9202WeemaesMPJ,VerstraeteWH.Evaluationofcurrentwetsludgedisintegrationtechniques.JChemTechnolBiotechnol,1998,73:83~923ReithJH,WijffelsRH,BartenH.Bio-methane&bio-hydrogen.Statusandperspectivesofbiologicalmethaneandhydrogenproduc-tion.Wageningen:DutchBiologicalHydrogenFoundation,2003.104~1094HawkesFR,DinsdaleR,HawkesDL,etal.Sustainablefermen-tativehydrogenproduction:changeforprocessoptimization.IntJHydrogenEnerg,2002,27:1339~13475LayJJ,FanKS,ChangJL,etal.Influenceofchemicalnatureoforganicwastesontheirconversiontohydrogenbyheat-shockdi-gestedsludge.IntJHydrogenEnerg,2003,28:1361~13676ChenCC,LinYY,LinMC.Acid-baseenrichmentenhancesan-aerobichydrogenproductionprocess.ApplMicrobiolBiot,2002,58:224~2287AlvarezJM,MacéS,LlabrésP.Anaerobicdigestionoforganicsolidwastes.Anoverviewofresearchachievementsandperspec-tives.BioresourceTechnol,2000,74:3~168KimJS,ParkCW,KimTH,etal.Effectsofvariouspretreatmentforenhancedanaerobicdigestionwithwasteactivatedsludge.JBiosciBioeng,2003,95(3):271~2759MüllerJA.Prospectsandproblemsofsludgepre-treatmentproc-esses.WatSciTech,2001,44(10):121~12810WangCC,ChangCW,ChuCP,etal.HydrogenproductionfromwastewatersludgeusingaClostridiumstrain.JEnvironSicHealPartA,2003,38(9):1867~187511WangCC,ChangCW,ChuCP,etal.ProducinghydrogenfromwastewatersludgebyClostridiumbifermentans.JBiotechnol,2003,102:83~9212WangCC,ChangCW,ChuCP,etal.Usingfiltrateofwastebiosolidstoeffectivelyproducebiohydrogenbyanaerobicfer-mentation.WatRes,2003,37(11):2789~279313LayJJ.Modelingandoptimizationofanaerobicdigestedsludgeconvertingstarchtohydrogen.BiotechnolBioeng,2000,58(3):269~27814FangHHP,LiuH.EffectofpHonhydrogenproductionfromglucosebyamixedculture.BioresourceTechnol,2002,82:87~9315LeeYJ,MiyaharaT,NoikeT.EffectofpHonmicrobialhydrogenfermentation.JChemTechnolBiotechnol,2002,77:694~69816OwenWF,StuckeyDC,JrHealyJB,etal.Bioassayformoni-toringbiochemicalmethanepotentialandanaerobictoxicity.WatRes,1979,13:485–49317AmericanPublicHealthAssociation.Standardmethodsfortheexaminationofwaterandwastewater(20thed).Washington:AmericanPublicHealthAssociation/AmericanWaterWorksAs-sociation