高污泥负荷膜生物反应器处理生活污水研究胡明成

:1004-5422(2013)01-0105-04胡明成(成都大学城乡建设学院,四川成都　610106)　:对高污泥负荷条件下的膜分离生物反应器进行了研究.试验结果表明,在污泥负荷低于0.6kgCOD/kgMLVSS·d的情况下,膜污染出现前的稳定运行时段较长,比通量下降速率增加缓慢且出水水质较好.:污泥负荷;膜污染;溶解性代谢产物;污泥龄;膜生物反应器:X131.2　　　　　　　　　　:A0　　,.(MBR),MBR[1-4].,MBR.MBR,.,MBR0.12kgCOD/kgMLVSS·d[5].MBR,.,MBR.,MBR[5-7].,(≥0.12kgCOD/kgMLVSS·d)MBR,MBR.1　1,2.5m3,,.,,,1、2.;3.;4.;5.;6.1　20L·m-2·h-1.,300%,5±0.5g/L,7.5±0.5g/L.,,,.,2mg/L.,5min,30s.,,,1000mg/L.2　1.:2012-12-25.:(1963—),,,,.1　COD/(mg/L)400BOD/(mg/L)220SS/(mg/L)20TN/(mg/L)25.5　　2.2　F/M/(kgCOD/kgMLVSS·d)Qin/(m3/h)SRT/(d-1)MLSS/(mg/L)NHx-N/(mg/L)COD/(mg/L)1.22.02.56.858.562.50.81.3536.653.543.50.61.046.550.9525.20.350.666.50.6526.60.10.17106.50.1525.5　　2.2　3　3.1　COD22.2,0.1～0.6kg-COD/kgMLVSS·d,COD2,0.6kgCOD/kgM-LVSS·d,.MBR,,.,.,,·106·　　　　　　　　　　　　　　　成都大学学报(自然科学版)　　　　　　　　　　　　第32卷.,,200%～300%,,400%-700%[6-7].2,.4,.MBR,.,,.,300%.,.4　MBR3.2　,,.,().2,0.1kgCOD/kgMLVSS·d,10d.,0.6kgCOD/kgMLVSS·d,3d.,.3.,0.6kg-COD/kgMLVSS·d,,0.6kgCOD/kgMLVSS·d,.,0.6kgCOD/kgMLVSS·d.4　　MBR:MBR,3　,、.,.,(HRT),MBR.,.:[1]MelinaT,JeffersonbB,BixiocD,etal.Membranebioreactortechnologyforwastewatertreatmentandreuse[J].Desalination,2006,187(1):271-282.[2]NgaHY,HermanowiczbSW.Membranebioreactoroperationatshortsolidsretentiontimes:performanceandbiomasscharacteris-tics[J].WaterResearch,2005,39(6):981-992.[3]JinKieShima,Ik-KeunYoob,YoungMooLeea.Designandop-erationconsiderationsforwastewatertreatmentusingaflatsub-mergedmembranebioreactor[J].ProcessBiochemistry,2002,38(2):279-285.[4]MarrotB,Barrios-MartinezA,MoulinP,etal.Industrialwastew-atertreatmentinamembranebioreactor:Areview[J].Environ-mentalProgress,2004,23(1):59-68.[5]JudS.Principlesandapplicationsofmembranebioreactorsinwa-terandwastewatertreatment[M].British:OxfordUniversityPress,2006.[6]Seong-HoonYoona,Hyung-SooKimb,Ik-TaeYeomb.Theopti-mumoperationalconditionofmembranebioreactor(MBR):costestimationofaerationandsludgetreatment[J].WaterResearch,2004,38(1):37-46.[7]WintgensaT,RosenaJ,MelinaT,etal.Modellingofamem-branebioreactorsystemformunicipalwastewatertreatment[J].JournalofMembraneScience,2003,216(1-2):55-65.·107·第1期　　　　　　胡明成:高污泥负荷膜生物反应器处理生活污水研究StudyonDomesticWastewaterTreatmentbyMembraneBioreactorofHighSludgeLoadHUMingcheng(SchoolofUrbanandRuralConstruction,ChengduUniversity,Chengdu610106,China)Abstract:Theresultsofsmallscalestudyonmembranebioreactoroperatingunderhighsludgeloadshowthat,undersludgeloadbelow0.6kgCOD/kgMLVSS·d,thebioreactorhaslongerstableoperationperiodbeforetheemergenceofmembranefouling,andthedecreaserateofspecificfluxincreasesslowlyandthestableeffluentqualityissatisfactory.Keywords:sludgeload;membranefouling;solublemicrobialproducts;sludgeage;membranebioreactor(上接第77页)FiniteElementAnalysisofBaseIsolationofMultilayerFrameStructureRENXiaopeng1,SUNHuazhong2(1.SchoolofCivilEngineeringandArchitecture,SouthwestPetroleumUniversity,Chengdu610500,China;2.TheNo.6MetallurgicalConstructionCo.,Ltd.,ChinaNonferrousMetalsIndustry,Zhengzhou450000,China)Abstract:Thelatestbuildingseismicdesigncodeincludestheisolationstructuredesign.Thefurtherre-searchonthebaseisolationstandardizationprocessofbuildingstructurebecomesthedevelopmenttrendofthefuturebuildingseismicdesign.Inthispaper,time-historyanalysismethodwasusedtoanalyzethemul-tilayerframeisolationbuildingintheearthquakeundertheactionofseismiceffect.Weanalyzedandcom-paredseismiceffectsforboththeactualisolatedbuildingofeight-layerframestructureandthetraditionalseismicbuilding,andestablishedtheframeworkcomputingmodelbyABUQUSsoftware.Theordinarylami-natedrubberbearing(RB)andleadcorerubberbearings(LRB)weretakenrespectivelyasthebasicseis-micisolationschemeandthenEl-centroseismicwavewasimportedintothebottomoftheframestructuremodel.TheanalyticalresultsaboutseismicperformanceshowthatbothRBandLRBschemesaresuperiortotraditionalschemeandRBschemeisslightlybetterthanLRB.Keywords:framestructure;baseisolation;seismicwave;finiteelementanalysis(上接第96页)[5]许英姿,唐辉明.滑坡治理中预应力锚索格构梁受力分析[J].安全与环境工程2002,9(3):24-26.ApplicationofCompoundSupportinHighSlopeReinforcementofBuildingCHENHailong(ShenzhenBranch,ChinaInstituteofGeotechnicalInvestigationandSurveying,Shenzhen518057,China)Abstract:Inthispaper,onerealprojectismadeasanexample.Basedonthesurroundingsandlandformofthehighslopeafterconsideringmanyfactorscomprehensively,compoundsupportincludinglatticebeam,shortanchorbarandlonganchorropeisusedtoreinforcetheslope.Thepracticeshowsthatthecombina-tionreinforcementtechnologycannotonlyreinforcedeeprockandshallowslope,butalsoreducethepro-jectcostandbeautifytheenvironment,whichcanbeareferenceofsimilarprojects.Keywords:latticebeam;anchorbar;anchorrope;highslope;reinforcement·108·　　　　　　　　　　　　　　　成都大学学报(自然科学版)　　　　　　　　　　　　第32卷