好氧颗粒污泥膜生物反应器中的污泥性质与膜污染研究王成端

31320103　　　　　　ENVIRONMENTALSCIENCEVol.31,No.3Mar.,2010,(,　621010):75d,COD、91%～95%、89.57%～100%48.25%～90.84%;,,1.085×1013m/kg2.712×1013m/kg;44.71～72.23mg/g.,5.32×1011m-12.34×1011m-1,67.42%29.66%.,.:;;;;;:X703.1　:A　:0250-3301(2010)03-0756-07:2009-05-05;:2009-08-12:[VN/Asia-Link/12(113128)]:(1962～),,,,,E-mail:[e-mail]embranePollutioninAerobicGranularSludgeMembraneBioreactorWANGCheng-duan,HUANGGuo-fu(SchoolofEnvironmentandResources,SouthwestUniversityofScienceandTechnology,Mianyang621010,China)Abstract:Theaerobicgranularsludgemembranebioreactorworkedfor75days.Inthisoperation,theremovalefficienciesforCOD,NH+4-NandTNwere91%-95%,89.57%-100%and48.25%-90.84%,respectively.Thegranularsludgeappeareddisintegrationtosomeextentandthesludgesettlementperformancesdeteriorated.Sludgespecificresistancefrominitialresistanceof1.085×1013m/kgroseto2.712×1013m/kgattheend;extracellularpolymericsubstancesmaintainedbetween44.71and72.23mg/g.Then,pollutioncharacteristicsofthemembranemodulewerestudied.Itwasfoundthatmembranesurfacecakelayerresistanceandmembraneporepluggingresistancewere5.32×1011m-1and2.34×1011m-1,accountedforthetotalresistanceof67.42%and29.66%,respectively.Throughtheanalysisofinfraredspectrumformembranefoulingmattersfoundthatthemainfoulingmatterswereproteinsandcarbohydratematerialsformembrane.Keywords:aerobicgranularsludge;membranebioreactor;sludgeperformances;membranefouling;sludgespecificresistance;infraredspectrum　　,[1],、[2].,,,,,,,[3～12].,,,,.1　1.1　(AGMBR)1.AGMBR,8cm,100cm,0.5cm,5cm,70cm,3.88L.PA-8,0.5μm,400mm,31mm,15mm,0.03m2,≤0.25MPa.AGMBR,、、、DOI:10.13227/j.hjkx.2010.03.0063:.5min,90min,120min,130min,15min,360min.1,,.,,8min/2min,35L/(m2·h),50∶1..12h,,SRT30～40d.1.　2.　3.　4.5.　6.　7.　8.9.　10.　11.　12.13.1　Fig.1　SchematicdiagramofAGMBRinstallation1.2　,1.1　/mg·L-1Table1　Compositionofsyntheticdomesticwastewater/mg·L-1500CaCl2110500MgSO4·7H2O25NH4Cl280EDTA20KH2PO440NaHCO32801.3　,,MLSS7200mg/L,MLVSS/MLSS0.90,0.45～2.0mm,SVI17.92mL/g,45.62m/h.1.4　COD、、、MLSS、SVI[13].[14];EPS、[15];Laguna[16];LeicaCambridgeLTDS440;[17];DOHANNAHI96400DO.2　2.1　2.1.1　2,,COD,398.75mg/L175.78mg/L,55.6%79.7%,,31.9%.MBR,,.2,,,COD,20dCOD70%～80%91%～95%.,,COD,COD15%.,,,COD,.2.1.2　N2,AGMBR.52.36～62.56mg/L,10.25～15.89mg/L.5d,95%.55.25～87.32mg/L,48.25%～90.84%.,,,,AGMBR.2,,AGMBR,.,.,95%,90%.757　　　　　　312　AGMBRFig.2　RemovalofpollutionsinAGMBR2.2　AGMBR2.2.1　AGMBRAGMBR,62%0.45～2.0mm.AGMBR,AGMBR,3.3,1.0～2.0mm2.0mm998.9mg/L364.2mg/L,25.1%9.2%,18d,723.9mg/L212.9mg/L,17.1%4.9%,.,0.18mm433.8mg/L,10.9%,,2422mg/L,34.5%.0.18～0.45mm0.45～1.0mmAGMBR.0.18～0.45mm716.4mg/L1614.7mg/L,23%;0.45～1.0mm1466.6mg/L1930.6mg/L,36.9%27.5%.,.2.2.2　AGMBR3　AGMBRFig.3　SizedistributionofaerobicgranulesludgeinSBARandSBR　　,SVI[18].AGMBRSVI4.,,SVI17.92mL/g,,12d,SVI85.45mL/g.,SVI,,75.0mL/g.AGMBR.AGMBR,1、20、4070dAGSBR0.45～1.0mm1.0～2.0mm7583:4　AGMBRSVIFig.4　Variationofaerobicgranularsludge'sSVIinAGMBR,2.2　/m·h-1Table2　Meansettlementvelocityofgranularsludgeinstaticwater/m·h-1/mm/d12040700.45～1.027.4520.3218.9516.381.0～2.042.536.9234.8333.60　　2,AGMBR.1d,0.45～1.0mm1.0～2.0mm27.45m/h42.5m/h,20d20.32m/h36.92m/h,70d,0.45～1.0mm1.0～2.0mm16.38m/h33.60m/h.AGMBR.2.2.3　AGMBREPS(extracellularpolymersubstances,EPS),、,、[19].,EPS[14].AGMBR,EPS,EPS.5EPS.5,,EPS,44.71～58.87mg/g.45dEPS72.23mg/g.EPSEPS5　AGMBREPSFig.5　VariationofsludgeEPSinAGMBR,,31.48～60.32mg/g.,6.15～16.55mg/g.5,EPS/,30d5,,3.5.2.2.4　AGMBR,.,[6].3AGMBR.1.085×1013m/kg,,,35d2.439×1013m/kg,67d2.712×1013m/kg.,,AGMBR,.,,.3　AGMBRTable3　ChangesofsludgespecificresistanceinAGMBR/d13567×1013/m·kg-11.0852.4392.7122.3　AGMBRAGMBR,8min/2min.U.TMP6.AGMBR759　　　　　　316　AGMBRFig.6　VariationofmembranefluxandTMPinAGMBR.35L/(m2·h).6,,38dTMP6.1～15.8kPa,43dTMP,17.8kPa75d65.3kPa.TMP.　　　AGMBR,,,TMP,、,,,,.AGMBR,,,,,TMP.2.4　AGMBR2.4.1　AGMBR,,,,.7.7　Fig.7　FoulingmembraneinAGMBRunderscanelectronmicroscope　　7(a)7(b),,,,,7603:.,AGMBR.7(c),7(d).7(c)7(d),,;,,,,AGMBR,[20].2.4.2　,,.,.Darcy[14].AGMBR75d,76d,,4.7.89×1011m-1,,2.3×1010m-1,2.92%;5.32×1011m-12.34×1011m-1,67.42%29.66%.,.4　Table4　Distributionofdifferentmembranefiltrationresistance×1011/m-1/%Rm0.232.92Rp2.3429.66Rc5.3267.42Rt7.891002.4.3　,Nicolet-5700.8,1647.6cm-1、1536.5cm-11403.8cm-1,[21].1057.0cm-1,C—OSi—O,.O—H,O—H,3412.0cm-1,O—H,[22,23].,,.8　AGMBRFig.8　InfraredspectraofmembranepollutantinAGMBR3　(1)AGMBRCOD43.33～69.32mg/L,89.57%～100%,48.25%～90.84%.COD、.(2)AGMBR,,.1.0mm.SVI17.92mL/g,.,EPS44.71～58.87mg/g,45d72.23mg/g,31.48～60.32mg/g,,6.15～16.55mg/g.(3)AGMBR35L/(m2·h),6.1kPa38d15.8kPa,,75d65.3kPa.,,1.085×1013m/kg,67d2.712×1013m/kg.(4),AGMBR7.89×1011m-1,5.32×1011m-12.34×1011m-1,67.42%29.66%,.,.761　　　　　　31:[1]　.[J].,1999,41(4):48-56.[2]　,,,.[J].,2006,27(1):57-62.[3]　,,,.[J].,2007,28(12):2710-2715.[4]　,,,.[J].,2007,28(5):1033-1038.[5]　,,.[J].,2008,29(10):2804-2808.[6]　HongSP,BaeTH,TakTM,etal.Foulingcontrolinactivatedsludgesubmergedhollowfibermembranebioreactors[J].Desalination,2002,143(3):219-228.[7]　LiuR,HuangX,SunYF,etal.Hydrodynamiceffectonsludgeaccumulationovermembranesurfacesinasubmergedmembranebiorea