MBR膜污染阻力及清洗效果研究李绍峰

＊: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,,,,。,RmR40.7%,RbRb/R=33.0%,Rc26.3%;,。,,,HCl+NaClO,,90%。:;MBR;;;:X703.3　　　:A0　　(MembraneBio-reactor,MBR)、、、,,[1,2]。MBR,、,[3-5]。,,,。(Electron-microscopicScan,EMS),,。1　1.1　1。1,2,MBR2;,,,,,15min,3min;,。,0.1μm,0.6m2/×4,;,35L。1.2　,、、、、、、、,pH。1。1.3　,;MBR,,。:S520,,6nm,20～200000。,,,CO2,、。2　2.1　　　2。,,,,。3。,、,,,。,、。4,,,,。,,1—;2—;3—;4—;5—;6—;7—;8—;9—1　Fig.1　Set-upofexperimentfacility1　mg/LTable1　QualityofthetestwastewaterCODTNNH3NTNpH324.2～543.815.2～25.811.4～23.63.2～5.36.8～7.92　Fig.2　Electron-microscopicscanningofnewmembrane96220064　　　　　　　　　　　　　　安全与环境学报JournalofSafetyandEnvironment　　　　　　　　　　　　　　Vol.6　No.2　Apr,2006,,5。,,、,6。2.2　,J=ΔPμR=ΔPμ(Rm+Rep+Rb+Rc)(1)　J,m3/(m2·s);ΔP,Pa;μ,Pa·s;R,m-1。RRm、Rep、Rb、Rc。γ,γ=KK0×100%　K,K=J/P,;K0。(1)R=ΔPμ·J(2)　　2.5m、24℃,μ=0.0009168Pa·s。(2),2。Rep=0。2Rm=0.558×105m-1,Rc=0.447×105m-1,Rb=0.365×105m-1,R=1.37×105m-1。,,Rm/R=40.7%,Rc/R=26.3%,Rb/R=33.0%。(a)(b)a30003　Fig.3　Electron-microscopicscanningofpollutedmembrane2.3　3,、。1:※※HCl※NaOH※NaClO※EDTA※。2:※※※NaClO※HCl※NaOH※EDTA。3:※※※HCl※NaClO※NaOH※EDTA。　　7～93,34　Fig.4　Electron-microscopicscanningofmembraneafterhydrauliccleaning5　Fig.5　Electron-microscopicscanningofmembraneafterchemicalcleaning6　Fig.6　Electron-microscopicscanningofmembraneafterultrasoniccleaning10　Vol.6　No.2　　　　　　　　　　　　　　　安全与环境学报　　　　　　　　　　　　　　6296.5%、91%89%。,20%,,。,。1,HCl、NaOH、NaClOEDTA,,48.3%,,10%。,,,,,,,,。3,,,NaOH,HClNaClO,NaClO[3],。EDTA,。2,,。,,,HCl+NaClO,,。,,,,、。3　　1),40.7%,26.3%,,33%。2),,,;,、。3),,,HCl+NaClO,。、90%。,、、。,,。2　Table2　Calculationofthefilterresistance■P/Pa253311418591195066R/m-1μ·J/(Pa·m3·m-2)0.20660.12970.08960.05861.37×105■P/Pa253311418591195066R/m-1μ·J/(Pa·m3·m-2)0.28420.17630.11750.08611.005×105■P/Pa253311418591195066R/m-1μ·J/(Pa·m3·m-2)0.49120.29770.20000.12990.559×105■P/Pa253311418591195066R/m-1μ·J/(Pa·m3·m-2)0.49420.30270.20380.13250.558×1057　1Fig.7　Cleaningeffectofmethod18　2Fig.8　Cleaningeffectofmethod29　3Fig.9　Cleaningeffectofmethod31120064　　　　　　　　　　　　,:MBR　　　　　　　　　　　　　Apr,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().Characteristicsofmembranefoul-inganditscleaninginmembranebioreactorsforwaterpurification[J].ChinaWaterandWastewater(),2003,19(5):8-12.[5]　WONTAEL,SEOKTAEK,HANGSIKS.Sludgecharacteristicsandtheircontributiontomicrofiltrationinsubmergedmembranebioreacters[J].JournalofMembraneScience,2003,216:217-222.ResistanceandcleaningeffectofMBRmem-branefoulingLIShao-feng1,2,CUIChong-wei3,LIUYu-qiang3,ZOUYuan2,XIEWei-ping2(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=40.7%,Rb/R=33.0%andRc/R=26.3%.Tobeexact,hydrauliccleaninghaslittleeffectontherecoveryofthemem-branepermeabilitywhereasthecombinationofultrasoniccleaningandchemicalcleaningarebetterthantheconventionalmethodsofchemi-calcleaning.Thus,theresultsofourinvestigationindicatethattheoptimalmembranecleaningshouldbedoneintwosteps:firstofall,hydrauliccleaningistobeused,then,thechemicalcleaningisfol-lowed.Indoingso,over90%ofthemembranepermeabilitycanberecoveredifchemicalcleaningcanbedonewithHCl+NaClOandultrasoniccleaningandthenproceededbyphysicalandchemicalcleaning.Keywords:environmentalengineering;MBR;wastewatertreat-ment;membranefouling;cleaningCLCnumber:X703.3　　　Documentcode: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;;,。,。。:;;;;:X824.04　　　:A0　　,,。2000,22,II、III7,IV、V15,68.2%。,200km3,,。1997—2003,、、III,IV、V,V,。,,[1]。2080,,,。,(NAS)(USEPA)。1983,《:》,“”,、-、[2]。,、、、。,、,1986《》《126220064　　　　　　　　　　　　　　安全与环境学报JournalofSafetyandEnvironment　　　　　　　　　　　　　　Vol.6　No.2　Apr,2006