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283Vol.28No.32007JournalofQingdaoTechnologicalUniversityUASB管锡珺1,国孟德2,刘亚钦,王新华1(1.,266033;2.,252000) :UASB,94d,,6.0kgCOD/(m3·d),COD85%,pH6.8,VFA400mg/L,.,UASB.:UASB;;;;:X703.3 :A :1673—4602(2007)03—0001—03 、、,,,.,,[1]:,;,.,.(UASB)[2],UASB,UASB,,、[3],.,,.1-;2-;3-;4-;5-;6-;7-;8-;9-1 1 1.1 ,.:、、、.0.28m,2.2m,0.135m3,0.132m3.1.2 ,,1.::Q1=3000m3/d;:Q2=6000m3/d(:,5000m3/d).,:COD≤10000mg/L,BOD5≤4200mg/L,SS≤4000mg/L,pH6～9;:(40272108):2006—10—1728:COD≤600mg/L,BOD5≤250mg/L,SS≤500mg/L,pH6.5～8.,COD3000～7000mg/L.1 COD/(mg/L)10680～325001650～25001200～20008000～10000350～500/(m3/d)400～760360～4801600～198010～20250～3501.3 ,60L.1.4 COD:;pH:PHS-3CpH;VFA:.、COD、pH,(VFA).2 2.1 200531265,11～30℃.1131.0kgCOD/(m3·d),7dCOD80%,.141.5kgCOD/(m3·d),,,.30、38、52、57、62、69,.,COD63%～90%.2—4.4 pHVFA2 COD3 pH2.2 2.2.1 .3,27COD78%63%,.,,,.31COD83%,,.,COD,2d,,COD.36,,,3.0kgCOD/(m3·d).372.5kgCOD/(m3·d),,,,393.0kgCOD/(m3·d).UASB24.3COD,23 ,:UASB,.2.2.2 UASB.UASBUASB,.UASB,[4].①UASB,,,UASB.②,,.③,.4:VFA,pH.,VFA900mg/L,pH6.6,.,UASB.UASB,,,,35,,UASB.2.2.3 .UASB,,UASB,UASB,,[5].,0.5mm;,0.5mm,..,1～2mm.,.:,、、、;.,,.2.2.4 .37,15～27℃(),,.,,UASB.3 (1),COD,.(2)UASB,、.1d,,,.6.0kgCOD/(m3·d),COD80%.(3),,,.(4),COD.(5),.:[1] ,,.[J].,2003,16(1):20-23.[2] ,,,.UASB[J].(),2006(4):1-5.[3] KatoMT,FieldJA,KerebezermR,eta1.TreatmentoflowstrengthsolublewastewaterinUASBreactors[J].JournalofFermenta-tionandBioengineering,1994,77(6):679-685.[4] ,,.[J].,2005,26(3):5-9.[5] .[M].:,1999:145-147.[6] ,,.//[J].,2006,27(5):74-77.(31)33 ,:StudyontheeffectofsteelfiberaddingwaysonconcreteflexuralstrengthANMing-zhe1,MAYa-feng1,HEKui2,XIAYi-bing2,WANGWan-jin2(1.SchoolofCivilEngineeringandArchitecture,BeijingJiaotongUniversity,Beijing100044,China;2.BeijingArchitectureEngineeringInstitute,Beijing100034,China)Abstract:Addingsteelfiberintonormalconcretecouldimproveitsmechanicperformance.Itpossessesexcellentpropertiessuchasgreatductility,hightoughnessandhighflexuralstrength.TheInfluenceRegularityofsteelfiberaddingwaysonflexuralstrengthofSFRC(SteelFiberReinforcedConcrete)isdiscussedthroughexperi-mentalstudyandacademicanalysisinthispaper.Theflexuralstrengthrisinglawasincreasingfibercontentislinear.Thehigherconcretestrengthgradeismade,thebiggerpercentageincreaseofflexuralstrengthwillbedone.Therisingextentofthreadsteelfiberoncompressivestrengthisgreaterthanmicro-cuttingsteelfiber.Andtheeffectofaddingmicro-cuttingorthreadsteelfiberonlyisbetterthananymixsteelfiber.Keywords:SFRC;flexuralstrength;fibercontent;strengthgrade:安明喆(1970- ),男,吉林蛟河人.工学博士,副教授,主要从事高性能混凝土先进水泥基复合材料研究.(3)ExperimentalstudyontheapplicationofimprovedUASBreactortotreatingcalciumalginatewastewaterundernormaltemperatureGUANXi-jun1,GUOMeng-de2,LIUYa-qin1,WANGXin-hua1(1.SchoolofEnvironmentalandMunicipalEngineering,QingdaoTechnologicalUniversity,Qingdao266033,China;2.LiaochengArchitectureCommittee,Laocheng252000,China)Abstract:ImprovedUASBreactorisappliedtotreatcalciumalginatewastewaterundernormaltempera-tureinthetest.During94days,itsvolumetricloadingrateis6.0kgCOD/(m3·d),CODremovalrateisachievedabove85%,effluentpHisabout6.8,VFAisstableat400mg/L,andthesystemrunssteadilyinthecaseofflocculentsewagesludge.TheresultsshowthattheapplicationofimprovedUASBreactortotreatingthehighly-concentratedorganiccalciumalginatewastewaterisfeasibleundernormaltemperature.Keywords:improvedUASBreactor;calciumalginate;wastewater;COD;sewagesludge:管锡珺(1964- ),男,山东莒县人.博士,教授,主要从事水资源与水污染控制研究.31