PACMBR用于微污染地表水处理的中试研究

～、CODMn。－PAC/MBRPACMBR、、。PAC/MBR、PAC、[1]。11.11。MBRPAC。PAC。1800mm×1200mm×2400mm4000L。PVDF0.09～0.12μm1190mm×508mm7185.2m2。1。1.2CODMnPAC/MBR。1。1.3111232d14.6～8.7℃。PAC/MBR111121.2000922.430074PACMBR－PAC/MBR。、CODMn0.3NTU、1.9mg·L-10.2mg·L-1。BAC。PACEPS。TQ028.8A1000-3770(2010)08-01[e-mail]1PAC/MBRFig.1FlowchartofPAC/MBRprocess36820108TECHNOLOGYOFWATERTREATMENTVol.36No.8Aug.,201010050～80mg·L-1MBR1200L·h-175μm1g·L-115dPACPAC2g·L-1。516m3·h-1、0.1MPa8min2min。1.4Hach2100PCODMn、NH4+-N、NO2--N、NO3--NTN[2]。EPS－NaOH－[3]750nm－625nm。22.12.1.1PAC/MBRCODMnCODMn2.06mg·L-1。6.67～35.9NTU。PAC/MBR0.3NTUCODMn1.9mg·L-11.38mg·L-1CODMn33%。23PAC/MBR、CODMnCODMn、CODMn。PACCODMn。PACCODMn。PAC、[4]BAC。3BACBAC[5]CODMn。CODMn。EPSCODMnCODMn1.9mg·L-1。2.1.2NH4+-N0.92～2.62mg·L-1PAC/MBRNH4+-N0.21mg·L-1、NH4+-N0.2mg·L-185.8%。45PAC/MBR、NH4+-N1、Tab.1Qualityofrawwaterandeffluentfromsettlingtank/NTUCODMn/mg·L-1ρ(NH4+-N)/mg·L-1ρ(NO2--N)/mg·L-1ρ(NO3--N)/mg·L-1pH20.5～348.0102.22.42～5.373.850.85～2.191.480.06～0.160.102.16～3.412.697.05～7.847.566.67～35.915.81.51～2.802.060.92～2.621.480.05～0.170.092.24～3.402.706.92～7.727.400510152025300.00.51.01.52.02.53.0COD/mg
L/d 2、、CODMnFig.2VariationofCODMninregardtoinfluent,mixedsolutionandeffluent3PAC/MBR、CODMnFig.3CODMnremovalbyPAC/MBR,bioreactorandmembrane051015202530-40-30-20-100102030405060
/%/dPAC/MBR PAC/MBR101NH4+-N、NH4+-N。NH4+-NNH4+-NPACNH4+-NNH4+-N。[6]PACPAC、NH4+-NNH4+-N。CODMnNH4+-N。6PAC/MBRNH4+-N、NO2--NNO3--N。NH4+-NNO3--N。NH4+-NNO2--NNO2--NNO2--NNO3--N。2.2PAC/MBRPAC/MBR7。。PAC“PAC”。“BAC”EPS[7]BACPAC、[4]2PAC/MBR。2.3EPSEPS[8]。EPS、、、、EPSEPS。EPS2EPSEPSEPS7PAC/MBR0510152025305.55.65.75.85.96.06.16.26.3
10/msm /d6PAC/MBRNH4+-N、NO2--NNO3-NFig.6TransformationamongNH4+-N,NO2--N,NO3-NofthePAC/MBRinfluentandeffluent051015202530-0.50.00.51.01.52.02.53.0
/mgL
/d0510152025300.00.51.01.52.02.53.0

NH-N/mgL/d 4、、5PAC/MBR、Fig.5NH4+-NremovalbyPAC/MBR,bioreactorandmembrane0510152025300102030405060708090100NH-N
/%/d368102EPS[9]。、EPS8。8EPSEPSEPSPAC[10]BACEPSPACBACEPSEPS。EPSEPS[11]。EPSEPSEPS[12]EPS。EPSEPSEPSBACEPS。3PAC/MBRCODMnNH4+-N33%85.8%、CODMnNH4+-N0.3NTU、1.9mg·L-10.2mg·L-1。PAC/MBRBACPAC、。PACBACEPSEPS。[1],,,.MBR/PAC[J].,2009,25(5):59-62.[2].[M].4.:,2002.[3].MBR[D].:,2006.[4],,.MBR[J].,2007,37(2):350-354.[5],,,.MBR[J].,2005,21(9):43-45.[6],,,.SMSBRPAC[J].,2002,18(6):5-9.[7].[D].:,2005.[8],,,.[J].,2005,24(5):41-44.[9]FangangMeng,So-RyongChae,AnjaDrews,etal.Recentadvancesinmembranebioreactors(MBRs):membranefoulingandmembranematerial[J].WaterResearch,2009,43:1489-1512.[10],.[M].:,2003.[11]MiuraY,HiraiwaMN,ItocT,etal.BacterialcommunitystructuresinMBRstreatingmunicipalwastewater:relationshipbetweencommunitystabilityandreactorperformance[J].WaterRes.,2007,41(3):627-637.[12],,,.EPS、SMP[J].,2009,30(5):1468-1474.0510152025300102030405060
/mgL
/d8EPSFig.8VariationofPAC/MBReffluentflowinconstantvacuumPILOT-SCALESTUDYONPAC/MBRFORTREATINGMICRO-POLLUTEDSURFACEWATERHuJingyi1,DengHuiping1,ZhangYuxian1,LiYuan1,LiuZizheng2(1.KeyLaboratoryofYangtzeRiverAquaticEnvironmentofMinistryofEducation,TongjiUniversity,Shanghai200092,China;2.EnvironmentalCollegeofHuazhongUniversity,Wuhan430074,China)Abstract:Thehybridprocesscombinedmembranebioreactor(MBR)withpowderedactivatedcarbon(PAC)-PAC/MBRwasemployedformicro-pollutedsurfacewatertreatment.Thepilot-testresultsshowthatastableeffluentqualitycanbeachieved,withturbidity,CODMnandammonianitrogenlowerthan0.3NTU,1.9mg·L-1and0.2mg·L-1respectivelyduringthesteadyoperationperiod,allofwhichsatisfythesanitarystandardfordrinkingwater.Thebio-activatedcarbonlayeronmembranesurfaceexhibitsagreatresistancetopump-suckingpressure,soastoguaranteetheeffluentfluxdecreaseinseveralstages,andavoidasignificantdecrease.ThesuspendedPACandBACparticlesinmixedsolutioncanadsorbalargeamountofextracellularpolymericsubstances(EPS),reducingthequantityofsolubleEPSasaresult,whichcontributestoalleviatetheextentoffouling.Keywords:micro-pollutedsurfacewater;powderedactivatedcarbon;membranebioreactor;bio-activatedcarbon;extracellularpolymericsubstances(EPS)PAC/MBR103