PAC自生动态膜生物反应器处理生活污水的研究

PAC,,,,,(,116024):56m,,,PAC2g/LPAC2g/L,(15d)PAC(6d)2.5,(100m)PAC(80m),PAC;2g/LPAC,,,0.5%NaClO12h:;;;:X703.1:C:1000-4602(2007)01-0048-05:(20031083)StudyonPAC-Self2formingDynamicMembraneBioreactorforDomesticSewageTreatmentWEIQi2feng,ZHANGHan2min,YEMao2sheng,CUIXia,YANGFeng2lin,ZHANGXing2wen(SchoolofEnvironmental&BiologicalScience&Technology,DalianUniversityofTechnology,Dalian116024,China)Abstract:Theself2formingdynamicmembranebioreactor(DMBR)ismadeupofcommonfilterclothwithporeapertureof56m.Throughdosingdifferentmasspowderedactivatedcarbon(PAC)intoDMBR,itsfiltrationcapabilityanditsoperationalperiodundertheconstantmembranefluxwereinvesti2gated.ThesurfaceandsectionofthedynamicmembraneatdifferentconcentrationsofPACwereobservedbyscanningelectronmicroscopy(SEM).TheresultsshowthattheoptimalPACdosageisabout2g/Linasinglefiltrationperiodundertheconstantmembraneflux.Theoperationalperiodof15dayswith2g/LPACdosageintheDMBRis2.5timeslongerthanthatof6dayswithoutPAC,andthesludgeparticledi2ameterof100mwithPACdosageisgreaterthanthatof80mwithoutPAC.TheSEMshowsthatthegellayeristhemainfactorofthemembranefoulingwithoutPAC,whilethecakelayeristhemainfactorofthemembranefoulingwith2g/LPACdosageintheDMBR.Thelattermembranefluxcanbasicallyberecoveredafterbeingcleanedandbrushed,andthentotallyberecoveredafterbeingsoakedin0.5%Na2ClOsolutionfor12h.8423120071CHINAWATER&WASTEWATERVol.23No.1Jan.2007转载[16];,,,(PAC),,,,[79]PAC,PAC,PAC,111111Fig.1Schematicdiagramofexperimentalset2up56m,2cm,0.087m2:20080%,1030mg/g12L,,9min3min,1.62L/h,18.6L/(m2h);7.4h,(251),160L/h,1001,BODNPFe=100510.1NH4ClK2HPO4FeSO42H2O,MgSO47H2OCaCl22H2OCuSO45H2ONaCl;,,2g/L,MLVSS/MLSS0.78112PAC,CODNH+4-N[10];;,KYKY-2800B2211PAC2PAC2PACFig.2VariationofeffluentturbidityatdifferentPACdosage2,PAC,30min5NTU,,SS,PAC,,PAC,PAC2g/L,PAC,,PAC,,,94:PAC231中国科技论文在线[9],:PAC[11]212PACFanB,,1520L/(m2h),47d,[2]PAC,PAC33Fig.3Variationoffiltrationpressureinasingleperiodundertheconstantmembraneflux3,PACPAC6d,2g/LPAC,15d,2.5,PAC,PAC,PAC,,,PAC,,3,PAC,2g/L,,23PAC2g/L,PAC2g/L213CODNH+4-N4COD,COD251.88423.58mg/L,339.32mg/L4CODFig.4EffectofCODremoval4,PAC,COD,COD54.81mg/L,COD21.57mg/L,93.64%4,COD,PACCOD(60.65%),CODCOD10%,CODCOD,,,,,,,5NH+4-N,NH+4-N15.6331.43mg/L,22.24mg/L5NH+4-NFig.5EffectofNH+4-Nremoval5,NH+4-N6.1905231(90%)[36]2146PAC2g/LPAC6Fig.6Distributionofthesludgeparticlediameter6,,PAC,80m,2g/LPAC100m,PAC,PAC215PAC,PAC,2g/LPAC,,,,0.5%NaClO12h,216,PAC2g/LPAC,,77Fig.7TheSEMofthepollutedfilterclothssurfaceandsection7(a),PAC6d,,,,,,2,(SMP)(EPS)[12],,15:PAC231中国科技论文在线(b),,0.042MPa,7(c),2g/LPAC,PAC,7(d),2g/LPACPAC2.5,,,2g/LPAC,,,,,,,,3,,,,,3PAC,,PAC2g/LPAC,,PAC2g/L,15d,PAC2.5,COD93.64%,NH+4-N77.20%2g/LPAC,,0.5%NaClO12h,,PACSMPEPS;2g/LPAC,:[1]KisoY,JungYJ,IchinariT,etal.Wastewatertreatmentperformanceofafiltrationbio2reactorequippedwithameshasafiltermaterial[J].WaterRes,2000,34(17):4143-4150.[2]FanB,HuangX.Characteristicsofaself2formingdy2namicmembranecoupledwithabioreactorformunicipalwastewatertreatment[J].EnvironSciTechnol,2002,36(23):5245-5251.[3],,,.[J].,2002,23(6):51-56.[4]SeoGT,MoonBH,LEETS,etal.Non2wovenfabricfilterseparationactivatedsludgereactorfordomesticwastewaterreclamation[J].WaterSciTechnol,2003,47(1):133-138.[5],,.[J].,2005,24(1):14-17.[6],,.[J].,2004,20(2):5-7.[7],,.[J].,2001,17(2):1-4.[8],,,.SMBR[J].,2004,20(10):10-13.[9],,,.PACMBR[J].(),2005,21(2):143-146.[10].(3)[M].:,1989.[11],,.[J].,2004,22(6):15-17.[12]NagaokaH,UedaS,MiyaA.Influenceofbacterialex2tracellularpolymersonthemembraneseparationactiva2tedsludgeprocess[J].WaterSciTechnol,1996,34(9):165-172.:[phone]E-mail:[e-mail]:2006-09-1125231