弹性填料表面亲水性对厌氧生化过程的影响研究汪晓军

:2003-07-18:(1964-),,,,。98、。汪晓军,李兆宗,何翠萍,林德贤(,510640)　　　:,,。,:15%～30%,,。:;;;:X703.1　　　　:A　　　　:1001-2141(2003)12-0062-02　　。,、,。[2],,,。,,。。、。,,。,“:、、”[2]。,,。,,,,[3]。。,,,,。1　,,A;、,,B,1。1　(m3/)(m2/m3)(%)AΥ78×60.50.0002890.98-1.05121.892.4BΥ78×60.50.0002890.90-0.95121.892.4　　、,。,,,。A,B。、、、、。,115cm,10cm,9.0L,15。、、,31℃-35℃。PULSAFEEDER,。:,,,,CODCr。,,。VFA,。2　2.1　AB,,A,B,。AB。,。AB,,,A。25　12　　　　　　　　　2003122.2　,,31-35℃,,,CODCr,CODCr20%。0.5L/h,18h。2　A、BCODCr(d)3691215182124273033(mg/L)14319020725229931838051787311672198A(mg/L)241198216230233210233211274290877(%)-68.5-4.2-4.38.722.134.038.759.268.675.160.1B(mg/L)2381842012352622392633173724541320(%)-66.43.22.96.712.424.830.838.757.461.139.9AVFA(mmol/L)2.52.14.25.55.37.3　　,,,CODCr,CODCr,。,A、BCODCr,ACODCrBCODCr。,,,,A,A。31-35℃10d,。,CODCr,ABCODCr,,A。CODCr2189mg/L,,VFA,CODCr。BA。,,,CODCr、3。3B40%,60%,。A61.48%,B,AB。,,。、、pH、,。4。3　CODCrmg/L(d)CODACODBCODA(%)B(%)12308.8987.21362.657.2440.9822288.6968.01353.657.7040.8532161.6973.41440.654.9733.3542152.9876.91320.759.2738.6652228.0858.21307.561.4841.32　　4,,CODCr,A50%,B38%,,A,。4　A、BCODCrCOD(mg/L)COD(kg/m3·d)ACOD(mg/L)BCOD(mg/L)A(%)B(%)12665.02.66501301.31784.651.1733.0423162.03.16201337.61917.457.7039.3633355.63.35561579.62018.452.9339.8543807.23.80721431.12160.162.4143.2653969.23.96921684.22440.357.5738.522.3　()20021CODCr。600m3,20h,,,。56,,,,,CODCr130mg/L,。45%,,,,CODCr,,,,CODCr50-80mg/L。,。5　2001mg/LCODCr621532556650565CODCr564540512568536(%)9.2-1.57.912.65.16　2002mg/LCODCr654507516611523CODCr428413412500423(%)34.618.520.018.219.13　3.1　、,(下转第67页)6312　:10..,1999.0411..(),2000.112..,2000.28.313..,2000.23.114..,1999.0215,..,2000,8:5～716,,..,2000,34(12):13～14.17WeuleH.Life-CycleAnalysis-astrategicelementforfutureprod-uctsandmanufacturingtechnologies.AnnalsoftheCIRP,1993,42(1):181～184.18PawlakZ.roughset:theoreticalaspectsofreasoningaboutdata.Dordrecht:kluwerAcademicPubishers,1991.19PawlakZ.SlowinskiR.Roughsetapproachtomulti-attributedeci-sionanalysis.invitedReview.European.JournalofoperationRe-search,1994,72:443～459.20PawlakZ.Roughset:probabilityversusdeterministicapproach.intJMan-MachineStudies,1988,29:81～95.(上接第63页)AB,,15%-30%。3.2　,,,,,。,。3.3　,。,。4　1　..4.:,1989.5～6.2　..:,2000.5～6.3　,,..:01129834.0.4　..,1999,25(5):1～3.5Capdeville.B.andNguyen.K.M.Kineticsandmodelingofaerobicandanaerobicfilmgrowth,WaterScienceTechnology,1999,(22):149～170.6Busscher.H.J.etal.Measurementofthesurfacefreeenergyofbac-terialcellsurfaceanditsrelevanceforadhesion.AppliedandEnvi-ronmentalMicrobiol,1984,(48):980～983.(上接第58页)3　:,(50℃～56℃),;,。。(28℃～50℃)、、pH7.0、8.0、5.0。,,pH。、、C/N50,30,10。2.0%5.0%NaCl。,,NaCl,。4　1　,,,..,2000,(6):40～41.2　,,,,..,2001,(5):122～125.3　..,1999,(3):30～32.4　,..,1995,(3):274～278.5　,..,1999,(6):52～56.6　,,,..,1989,(8):18～21.7　..,1991,(4):27～33.8　..:,1986.。:“、”:;;;;;。::8　　:400020:　　:(023)676342646712　　:Keywords:TiO2nanoparticles,metalions,photocatalyticdegradation,phenolTheInfluenceofFreeAmmoniumonStableShort-cutNitrityingsystemWeiChen,LuoGuyuan(FacultyofUrbanConstructionandEnvironmentalEngineering,ChongqingUniversity,Chongqing400045)Abstract:Ammoniumoxidationbacteriaisnotverysensi-tivetoFAwhennitriteaccumulationhavebeenstable.ThemainfunctionofFAisasachoiceconditionfactor.Theactivityofammoniumoxidationbacteriaandnitriteoxidationbacteriaisrelationtothecompetitionconditionbetweenthem.TheFAconcentrationofsystemmaintainas7～10mg/lissuitable.WhenFA15mg/l,Ammoniumoxidationbacteriawillbein-hibited.Bacillarsludgeisitstypicalfeature.Keywords:Nitrification;Nitriteaccumulation;FA;Inhibi-tionCleaningMethodofMicrofiltrationMembraneFouledbyBlackLiquorXuNong,HuangJiangli,LiuGuangli,ShiHanchang,QianYi(StateKeyLaboratoryofEnvironmentalSimulationandPollutionControl,DepartmentofEnvironmentalScienceandEngineering,TsinghuaUniversity,Beijing100084)Abstract:Thecleaningofceramicmicrofiltrationmem-branefouledbywheat-strawpulpblackliquorwasdiscussed.Bothphysicalandchemicalmethodsforthemembraneregener-ationwerestudied.Thecleanefficienciesofsinglecleanagentsandcombinationtechnologywereinvestigated;thecleaningre-peatabilitywasalsotested.Comparedwithcrossflow,hightemperatureandsinglecleanagent,thecombinationtechnologywasmorefavorableforthemembraneregeneration.Itshowedthathigherandsteadierpermeatefluxcanbeobtainedunderthechemicalcleaningwithsodiumhydroxide,nitricacidandsodiumhypochlorite,thismethodisexpectedtoapplyinapilotstudy.Keywords:blackliquor;microfiltrationmembrane;clean-ingagent;regenerationmethodAdaptabilityofMicroorganismintheProcessofAerobicCompostingLiuFang,YeBingong(DepartmentofEnvironmentalScienceandEngineering,NanjingUniversityofS.&T.,Nanjing210094)Abstract:Thechangeofmicroorganismspopulation,amountandgrowingconditionintheprocessofaerobiccom-postingwerestudiedinthepaper.Theresultsshowedthatfun-giweredominantinthethermophilicperiodandbacteriaweredominantinthematurationperiod.Aftercompostingandfer-mentation,thepopulationofmicroorganismstendedtobesim-plification.ThemostsuitablepHconditionsofmesophilicbac-teria,actinomycetesandfungiwere7,8,and5,whilethesuit-ableC/Nratioswer