二相厌氧消化工艺硫酸盐还原细菌的研究竺建荣

186199711　　　　　　ENVIRONMENTALSCIENCEVol.18,No.6Nov.,1997*竺建荣　胡纪萃　顾夏声(,100084　)　　MPN,SRB2.0-5.7×106/ml,0.93-9.3×107/ml,21.UASBSRB.SRB7.5×1054.3×105/ml,SRB2.5×1062.5×107/ml.SRB,.,SRB.　,,UASB.*　(59008494):1997-01-05　　[1-2].,[2-4].,[5].USAB,(Sul-phateReducingBacteria,SRB),SRB,,.1　UASB.UASB.[6].SRB(MPN),:10ml,Warning,45s,.,,10,,35℃2,.SRB,,SRBHungate[7].SRB[8]:3.5g,NH4Cl1.0g,NaSO41.0g,MgSO4·7H2O0.1g,K2HPO40.5g,Fe(NH4)2(SO4)·7H2O0.65g,CaCl20.1g,1000ml,pH7.0-7.2。2%.[7].0.11MPa20min,..2　2.1　,UASB1.1:　　(1)UASBSRB,0.93-9.3×107/ml.UASBSRB(1.5-7.3×107/ml),2SRBDOI:10.13227/j.hjkx.1997.06.0121　　2.　3..(2)SRB(2.0-5.7×106/ml).,.,2SRB,SRB.SRB.,,,SRB.2.2　SRB.14,6.2.2,SRB7.5×1052.5×106/ml,1.——.,SRB2.5×107/ml,(4.3×105)2。UASB(4.3×107/2.5×105).(3-4)[6],:SRB.2.3　SRB3.,SRB2　,1,SRB,()SRB.,,,,,SRB,SRB,SRBSO2-4(H2S),SO2-4,.3　(a)COD30kg/(m3·d)(b)COD18kg/(m3·d)2.4　,0.4-0.8×1.0-2.0μm.,,,,SRB.,H2.,436　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　(Desulfovibrio).SRB,,0.5-1.5mm().,SRB().3　3.1　SRBSRB,2-3[6].,(SRBSRB),SO2-4,,,SO2-4,.SRB,COD/SO2-4[9],pHHRT.,SRBpH.WidellpH6.0[10];17h.,SRB,.:,,,.,.pH5.0,6.0.COD/SO2-4,5,SO2-44000mg/L.3.2　SRBSRB,H2NADH+H+SO2-4..,:SO2-4+4H2→H2O+H2S+2OH-(ΔG0′-151.9kJ/mol)CO2+4H2→2H2O+CH4(ΔG0′-135.6kJ/mol),SRB.,、、,SRB,,.[2,11].,.,SRB,,.,[12].CH4CO2,2,,.,SRBH2S,.SRB.,SRB.,UASB,SRB,,.1　IsaZetal..Appl.Environ.Microbiol.,1986,51(3):5802　IsaZetal..Appl.Environ.Microbiol.,1986,51(3):5723　HiltonBTandJAOleszkiewicz.J.Environ.Eng.,1988,91(6):13774　ColleranEetal..WaterSci.Tech.,1994,30(12):2635　.,1993,11(1):136　.,1992,10(2):17　、..:,1986:2138　().(8).:,1984:5349　McCartneyDMandJAOleszkiewicz.WaterEnviron.Res.,1993,65(5):65510　WiddelFandNPfenning.Arch.Microbiol.,1977,112(1):11911　YodaMetal..WaterRes.,1987,21(12):154712　MaillacheruvuKYetal..WaterEnviron.Res.,1993,65(2):10044　　　　　　18azo-dyeaqueoussolutions.Thephotodegra-dationproductsofphenolwerealsodeter-mined.Keywords:photochemistry,photodegradation,wastewatertreatment,oilrefinerywastewa-ter,cokingindustrywastewater,phenol.ThePreliminaryStudyonTheMechanismofDyesWasteWaterTreatmentwithACFElec-trode.JiaJinpingetal.(Dept.ofAppliedChem.,ShanghaiJiaoTongUniv.,Shanghai,200240):Chin.J.Environ.Sci.,18(6),1997,pp.31—34Inthisarticle,anewtypeofelectrodemadeofACFtotreatseveralsimulateddyewastewa-terwasstudied.Undertheelectrolyticvoltagerangedfrom15Vto25V,allthewastewater'schromaticityremovalsarenear100%,withCODremovalswithin30%-80%.Andthere-actionmechanismwerefigureoutpreliminari-lybyvariouscharacterizationmeanssuchasIR、UV、spectrofluorimetryandTOC.Mainly,itmaybethatthetreatingprocessesinvolveradicalreactionandcoagulationsimultaneous-ly.Theradicalreactioncancombineseveralorganicmoleculesbyradicalcoupling,sothelargermoleculecanbecoagulatedeasily.Keywords:activecarbonfiber,electrode,elec-trochemistry,dyeswastewater,reactionmech-anism.DeterminationandDiscussionofHydraulicRetentionTimeinMembraneBioreactorSys-tem.ZhangShaoyuan,WangJusietal.(ResearchCenterforEco-Environ.Sci.,ChineseAcade-myofSci.,Beijing100085):Chin.J.Environ.Sci.,18(6),1997,pp.35—38Basedonthemicroorganismkineticmodeltheformulaforcomputingthehydraulicretentiontimeinthemembranebioreactorsystem(MBR)isderived,andtheninfluencingfactorsofMBRarediscussed.Theresultsshowedthattheinfluencingfactorsarelistedinorderfromstrengthtoweaknessasmaximumspe-cificremovalrateK,saturationconstantKS,maintenancecoefficientm,netbacteriayieldcoefficientYGandmaximumspecificgrowthrate_m.Finally,theformulaissimplifiedanditssimpleformisasfollows:T=1.1×(1/U-1)(KS+L)/KS0.Keywords:membranebioreactor,wastewatertreatment,hydraulicretentiontime,microbialkineticmodel,kineticconstant,operationcon-stant.ThePilotTestofElectrostatics-cyclonePre-cipitationTechnology.XuDexuanandQuZhi-he(InstituteofElectrostatics,NortheastNor-malUniversity,Changchun130024):Chin.J.Environ.Sci.,18(6),1997,pp.39—41Themechanismofelectrostatics-cyclonepre-cipitationtechnologyhasbeenresearchedinthispaper.Thepilotdemonstrationshowedthatthistechnology,usingtoimprovethewetcycloneprecipitatorofpowerstation,canheightentheprecipitationefficiencyfrom92.55%to98.4%.Theprecipitationefficien-cyfordifferentconcentrationoffluegasisquitestable.Whenthegasflowis10600Nm3/h,theresistanceis800-920Paandthecon-sumptionperunitflowofhighvoltagepowersupplyis0.2Wh/(m3h).Keywords:electrostatics-cycloneprecipitationtechnology,wetcycloneprecipitation,highvoltagepower.AStudyofSulfateReducingBacteriainTwoPhaseAnaerobicProcessofUASBReactors.ZhuJianrongetal.(Dept.ofEnviron.Eng.TsinghuaUniv.,Beijing100084):Chin.J.En-viron.Sci.,18(6),1997,pp.42—44Thispaperdescribedthepropertiesofnumer-ationanddistributionofsulfatereducingbac-teria(SRB)intwophaseprocessofUASBre-actors.UsingHungateanaerobictechniqueandMPNdeterminationmethod,itwasshowedthatSRBofacidogenicphaseare2.0～5.7×106cells/ml,andthepopulationofSRBinmethanogenicphaseare0.93～9.3×107cells/ml.ThedifferenceofSRBbetweenacidogenicandmethanogenicphaseisabout1orderofmagnitude.ThenumerationofSRBinsingleUASBreactorissimilartothatofmethanogenicphase.ThedistributionsofSRBexhibitedthatthebacterialp