MBR膜污染阻力及清洗效果研究

*:2005-09-26:,,,:(04KJD013):1009-6094(2006)02-0009-04MBR*李绍峰1,2,崔崇威3,刘玉强3,邹原2,谢炜平2(1,150001;2,518055;3,150090):MBR,,,,,RmR407%,RbRb/R=330%,Rc263%;,,,,HCl+NaClO,,90%:;MBR;;;:X7033:A0(MembraneBio-reactor,MBR),,[1,2]MBR,,[3-5],,,(Electron-microscopicScan,EMS),,11111,2,MBR2;,,,,,15min,3min;,,01m,06m2/4,;,35L12,,pH113,;MBR,,:S520,,6nm,20~200000,,,CO2,2212,,,,3,,,,,4,,,,,,1;2;3;4;5;6;7;8;91Fig.1Se-tupofexperimentfacility1mg/LTable1QualityofthetestwastewaterCODTNNH3NTNpH3242~5438152~258114~23632~5368~792Fig.2Electron-microscopicscanningofnewmembrane96220064安全与环境学报JournalofSafetyandEnvironmentVol.6No.2Apr,2006,,5,,,622,J=PR=P(Rm+Rep+Rb+Rc)(1)J,m3/(m2s);P,Pa;,Pas;R,m-1RRmRepRbRc,=KK0100%K,K=J/P,;K0(1)R=PJ(2)25m24,=00009168Pas(2),2Rep=02Rm=0558105m-1,Rc=0447105m-1,Rb=0365105m-1,R=137105m-1,,Rm/R=407%,Rc/R=263%,Rb/R=330%(a)(b)a30003Fig.3Electron-microscopicscanningofpollutedmembrane233,1:HClNaOHNaClOEDTA2:NaClOHClNaOHEDTA3:HClNaClONaOHEDTA7~93,34Fig.4Electron-microscopicscanningofmembraneafterhydrauliccleaning5Fig.5Electron-microscopicscanningofmembraneafterchemicalcleaning6Fig.6Electron-microscopicscanningofmembraneafterultrasoniccleaning10Vol.6No.2安全与环境学报62965%91%89%,20%,,,1,HClNaOHNaClOEDTA,,483%,,10%,,,,,,,,3,,,NaOH,HClNaClO,NaClO[3],EDTA,2,,,,,HCl+NaClO,,,,,,31),407%,263%,,33%2),,,;,3),,,HCl+NaClO,90%,,,2Table2CalculationofthefilterresistanceP/Pa253311418591195066R/m-1J/(Pam3m-2)02066012970089600586137105P/Pa253311418591195066R/m-1J/(Pam3m-2)028420176301175008611005105P/Pa253311418591195066R/m-1J/(Pam3m-2)049120297702000012990559105P/Pa253311418591195066R/m-1J/(Pam3m-2)04942030270203801325055810571Fig.7Cleaningeffectofmethod182Fig.8Cleaningeffectofmethod293Fig.9Cleaningeffectofmethod31120064,:MBRApr,2006References():[1]LEEJ,AHNWY,LEECH.Comparisonofthefiltrationcharacteris-ticsbetweenattachedandsuspendedgrowthmicroorganismsinsub-mergedmembranebioreactor[J].WatRes,2001,35(10):2435-2445[2]ROSENBEGERS,KRIIGERU,WITZIGR,etal.Performanceofabioreactorwithsubmergedmembranesforaerobictreatmentofmunicipalwastewater[J].WatRes,2002,36(2):413-420[3]ZHANGYing(),RENNanqi(),WUYining(),etal.Studyonmembranefoulingphenomenonandcleaningexperiment[J].ChemicalEngineering(),2004,32(2):57-60[4]HUANGXia(),MOLi().Characteristicsofmembranefou-linganditscleaninginmembranebioreactorsforwaterpurification[J].ChinaWaterandWastewater(),2003,19(5):8-12[5]WONTAEL,SEOKTAEK,HANGSIKS.Sludgecharacteristicsandtheircontributiontomicrofiltrationinsubmergedmembranebioreacters[J].JournalofMembraneScience,2003,216:217-222ResistanceandcleaningeffectofMBRmem-branefoulingLIShao-feng1,2,CUIChong-wei3,LIUYu-qiang3,ZOUYuan2,XIEWe-iping2(1PostDoctorWorkStation,EnvironmentalTechnologyCo.,Ltd,HarbinInstituteofTechnology,Harbin150001,China;2Depart-mentofArchitectureEngineering,ShenzhenPolytechnicInstitute,Shenzhen518055,Guangdong,China;3SchoolofMunicipal&En-vironmentalEngineering,HarbinInstituteofTechnology,Harbin150090,China)Abstract:Thispaperaimstointroduceourinvestigationofthemem-braneresistanceandourresearchintotheoptimalcleaningmethods.Firstofall,theinvestigationwasdonewiththecharacteristicfeaturesofthemembranefoulingandcleaningeffectsbyusingdifferentclean-ingmethodsthroughrunningsubmergedMBRandelectron-microscop-icscanningtechnology.TheresultsofourinvestigationshowthatRm/R=407%,Rb/R=330%andRc/R=263%.Tobeexact,hydrauliccleaninghaslittleeffectontherecoveryofthemem-branepermeabilitywhereasthecombinationofultrasoniccleaningandchemicalcleaningarebetterthantheconventionalmethodsofchem-icalcleaning.Thus,theresultsofourinvestigationindicatethattheoptimalmembranecleaningshouldbedoneintwosteps:firstofall,hydrauliccleaningistobeused,then,thechemicalcleaningisfo-llowed.Indoingso,over90%ofthemembranepermeabilitycanberecoveredifchemicalcleaningcanbedonewithHCl+NaClOandultrasoniccleaningandthenproceededbyphysicalandchemicalcleaning.Keywords:environmentalengineering;MBR;wastewatertreat-ment;membranefouling;cleaningCLCnumber:X7033Documentcode:AArticleID:1009-6094(2006)02-0009-04*:2005-08-01:,,;,,,:(04ZH3068);(02C229);(05SL04):1009-6094(2006)02-0012-04*孙树青,胡国华,王勇泽,李诚(,410076):,,,2000,,,PbHgNH3;AsCd;;,,:;;;;:X82404:A0,,2000,22,IIIII7,IVV15,682%,200km3,,19972003,III,IVV,V,,,[1]2080,,,,(NAS)(USEPA)1983,:,,-[2],,,1986126220064安全与环境学报JournalofSafetyandEnvironmentVol.6No.2Apr,2006