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MBRMBR、[1]。MBR、、。PAC、、、[2]。[3-4]PACMBRPAC/MBR。[4]PAC2g·L-1PAC2。、PAC/MBRMBR、2EPS。11.1PAC/MBR1。MBRPAC。PAC。1800mm×1200mm×2400mm4000L。PVDF0.09～0.12μm1190mm×508mm7185.2m2。1PAC/MBRFig.1PAC/MBRProcessPAC/MBRMBR200092PAC/MBRMBR。PAC/MBRCODMn、UV254、PAC/MBR。EPS、PACEPS。PAC。TU991.2A1000-3770(2011)12-0078-0052011-04-012008ZX07425-0071987－E-mailjianjianfengling@163.com3712201112TECHNOLOGYOFWATERTREATMENTVol.37No.12Dec.,201178DOI:10.16796/j.cnki.1000-3770.2011.12.0192PAC/MBRMBRFig.2TheeffectofPAC/MBRandtheMBRontheturbidityremoval0510152025300.00.10.20.30.40.5 /d/NTU80859095100 /%1、Tab.1Rawwater,sedimentationpondwaterquality2.06～24.6(10.6)1.40～3.17(1.98)0.017～0.091(0.036)0.181～5.318(1.562)2.85～8.99(5.68)7.36～7.75(7.44)16.8～23.8(20.0)2.86～27.1(10.1)1.17～4.12(2.46)0.024～0.083(0.050)0.186～3.326(1.567)2.78～8.13(5.42)6.62～7.72(7.39)21.5～25.2(22.8)/NTUCODMn/mg·L-1UV254/cm-1ρ(NH4+-N)/mg·L-1ρ(TN)/mg·L-1pH/℃46.7～347(188.2)3.32～10.67(5.83)0.034～0.114(0.065)0.26～5.81(1.66)2.83～8.95(5.64)7.46～7.85(7.54)16.8～23.8(20.0)76.3～340(193.9)3.65～8.42(6.24)0.042～0.127(0.080)0.436～3.529(1.684)2.91～8.26(5.34)6.71～7.79(7.43)21.5～25.2(22.8)MBRPAC/MBRMBRPAC/MBR。1.2CODMnPAC/MBR。1。1.34665d。16.8～25.2℃。50～80mg·L-1MBR1200L·h-1PAC75μm1g·L-115dPACPAC2g·L-1。516m3·h-1、0.1MPa8min2min。MBRPAC/MBRPAC/MBR1120104182010516MBR122010522621。1.4Hach2100PCODMn、、、[5]UV254T6EPS-NaOH-[6]。22.12PAC/MBRMBR90%。0.5NTU。MBRPAC/MBRPAC3kDaPAC“”“”。2。PAC2[7]。2.22.2.1CODMn3PAC/MBRMBRCODMn3mg·L-1。PAC/MBRPAC/MBRMBR79CODMnMBR。PACPACBACBiologicalactivatedcarbonMBRCODMn、[8]。2.2.2UV2544PAC/MBRMBRUV254PAC/MBRMBR。UV254、、、、UV254[9]UV254CODMn。UV254PAC/MBRPAC。UV254PAC/MBRBACBACPACUV254PAC/MBRUV254MBRUV254[7]MBRUV254PAC/MBR。2.2.3、pH[10]。PAC/MBRMBR15d。PAC/MBRMBR5。20dPAC/MBRMBR100%。PACPAC/MBRBACMBR。BAC[11]。2.36PAC/MBR“”MBR“”。MBRPAC/MBR。MBRPAC/MBRPAC3PAC/MBRMBRCODMnFig.3TheeffectofPAC/MBRandtheMBRontheCODMnremoval051015202530012345 /dCOD /mg L 010203040506070/%4PAC/MBRMBRUV254Fig.4TheeffectofPAC/MBRandtheMBRontheUV254removal0510152025300.000.010.020.030.040.050.060.070.08 /dUV /cm 020406080100/%0510152025300.00.51.01.52.02.53.03.5 /d/mg L 020406080100 /%5PAC/MBRMBRFig.5TheeffectofPAC/MBRandtheMBRontheammoniaremoval371280。PACBAC[12]。MBRMBR。2.4PAC/MBRMBREPSEPS。EPS2EPSEPS[13]。[14]EPSEPSEPSEPS。78PAC/MBRMBREPS。7PAC/MBREPSMBR。8PAC/MBREPSEPSMBRMBREPSPAC/MBR。BACEPSPAC/MBREPSMBREPSMBRBAC。PAC/MBREPSBACEPSBACUV254。3PAC“”PAC/MBRMBR。PAC/MBRMBRCODMnUV254。CODMnPAC/MBRPAC、BAC。UV254PAC/MBRBACUV254。PAC/MBRMBR。PAC/MBR、BACMBR。PAC/MBRBAC“”MBR“”。8PAC/MBRMBREPSFig.8TheboundEPSchangesinPAC/MBRandMBRmixture051015202530202530354045 EPS/mgL d6PAC/MBRMBRFig.6PAC/MBRandMBRmembranefluxchange0510152025305.05.56.06.57.07.58.0 10 m s m d7PAC/MBRMBREPSFig.7ThedissolvedEPSchangesinPAC/MBRandMBRmixture0510152025300123456 EPS/mgL dPAC/MBRMBR81USEMEMBRANESTRUCTUREPARAMETERMODELTOEVALUATEONLINECHEMICALCLEANINGONCONSTANTFLUXPATTERNULTRAFILTRATIONMEMBRANEPERFORMANCERECOVERYSunXipeng,WangLei,WangXudong,MaKun,MaPingyuan,MaXiaoju(SchoolofEnvironmental&MunicipalEngineering,Xi′anUniversityofArchitectureandTechnology,Xi′an710055,China)Abstract:Thetestmainlystudiedtheinfluenceofthedifferentonlinechemicalcleaningwayonconstantfluxpatterntranscendmembranepressurerecoveryusinghollow-fibermembranewhichthemolecularweightcut-offwas80kDa,andevaluatedtheinfluenceofthedifferentonlinechemicalcleaningwayonmembraneaverageporesizeandmembraneporedensitybymembranestructureparametermodel.Theresultsindicatedthatthetranscendmembranepressuregrowthspeedofultrafiltrationmembraneseparationsystemwasgoingtosloweraftertheonlinechemicalcleaningoperation,thetranscendmembranepressurerecoveryrateswasgoingtohigherunderreverse-washcirculationmodeofthechemicalcleaningsolution,theback-washofhot-waterbeforereverse-washcirculationmodeofthechemicalcleaningsolutioncouldimprovemembranecleaningefficiency,thesimulationvalueofmodelprametersalsoshownthesametendency.Keywords:ultrafiltration;theonlinechemicalcleaningoperation;membranestructureparametermodel;trans-membranepressureTHECOMPARATIVERESEARCHONPAC/MBRANDMBRFORTREATINGMICRO-POLLUTEDSURFACEWATERZhanFengling,HuJingyi,LiYuan,DengHuiping（KeyLaboratoryofYangtzeRiverAquaticEnvironmentofMinistryofEducation,TongjiUniversity,Shanghai200092,China）Abstract:AcomparativeresearchonPAC/MBRandMBRprocessfortreatingmicro-pollutedsurfacewaterhadbeenoperated,theresultsshowedthatthePAC/MBRhadbettereffectsintheremovalofCODMnandUV254whilehadnoobviousadvantagesintheremovalofturbidityandammonianitrogen.ThroughdetectingthecontentofEPSinthemixedfluids，analyzingthetrendsoftheeffluentflux,Itcanbefoundthat,theaddingofPACcanstrengthenthebiologicalactivityinsidethereactor，leadingadivergenceinthecontentanddistributionofEPSandimprovetheeffluentfluxofmembrane.Inanotherway,PACca