不同污泥龄下MBR内SMP对膜污染的影响肖椿

5MBR、、[1]。MBR、MBR[2-3]。SMP[4-5]。SMP、、、[5]。SMP2UAPBAP[6]。SMP、。MBRSMP10kDaSMP《》[e-mail]*。EnvironmentalScience&Technology37520145Vol.37No.5May2014MBRSMP*2100233MBRSMP。SMPSMPSMP。SMP。SMPSMP。SMPSMPSMP、、。X703.1Adoi10.3969/j.issn.1003-6504.2014.05.0281003-6504(2014)05-0143-06MembraneFoulingBehaviorRelatingtoSolubleMicrobialProductsinMembraneBioreactorswithDifferentSRTXIAOChunZHANGYanGENGJinjuXUKeDINGLiliYURongtaiRENHongqiang*StateKeyLaboratoryofPollutionControlandResourceReuseSchoolofEnvironment,NanjingUniversityNanjing210023ChinaAbstractBench-scaleexperimentswithmembranebioreactorsMBRwerecarriedouttoinvestigatehowthemembranefoulingbehaviorswereaffectedbysolublemicrobialproductsSMPinconditionofdifferentsludgeagesi.e.solidretentiontimeSRTduringwhichthreeparalleledbench-scaleMBRswereoperated.ItwasfoundthataccumulationofSMPinsupernatantdeclinedwithSRTbeingprolongedmoreoverthepercentageofhighmolecularweightandhydrophobiccomponentsinSMPincreasedtoowiththeprolongedSRT.HoweverSMPinmembranefoulinglayerwhenchangedwasdifferentfromtheSMPinsupernatant.ThecorrelationanalysisonmembranefoulingrateandcharacteristicsofSMPsuggestedthattheSMPinsupernatantunlikelymuchinfluencedmembranefoulingwhereastheconcentrationsandcharacteristicsofSMPinthemembranefoulinglayeraffectedthemembranefoulingrateremarkably.Keywordsmembranebioreactorssludgeretentiontimesolublemicrobialproductsmembranefouling37[7]。MengSMP[8]。ShenSMP[9]。SRTSMP。LiangSRTSMPSRT[10]。KatsukiSRTSMP[11]。SMPSMP。KimuraMBR[12]。MengSMPEPS[3]。MBRSMPSMPMBR。11.1MBR325cm×15cm×40cm1。1.0mm×2.2mm0.03μm0.2m2。15min3min。。1.22。3MBRMBR1MBR2MBR313d26d52d。3000mg/L5.4h3.0～3.5mg/LpH7.0～7.520～25℃。2.5L/h。30kPa0.3%NaClO。1。1.31.3.1COD、、、MLSS[13]SMP[14]。lowry[15][16]SUVATOCO.I.Aurora1030USAUV254UV2450SHIMADZU[10]。1.3.2300mL0.45μm0.03MPaPVDF、3、10、30、100kDaTOCTOC。1.3.35g1mL/min。0.45μmXAD-80.1mol/LHClHOBpH=2XAD-80.1mol/LNaOHHOA。XAD-4HIS0.1mol/LNaOHHClTPOA。1.3.4MFRTMP[2]。MFR=TMPf-TMPi/TTMPfTMPiT。22.13MBR50d6893±3536047±2105038±2361Table1Compositionandconcentrationofartificialwastewater/mg·L-1/mg·L-1300MgSO4·7H2O5.0850MnCl2·4H2O0.28NH4Cl114.6ZnSO4·7H2O0.44KH2PO412CuSO4·5H2O0.39Na2CO364.3CoCl2·6H2O0.42FeCl3·6H2O2.42Na2MoO4·2H2O1.26CaCl2·2H2O0.375mg/L。2MBRCOD、。3COD90%70%80%SRTSRT。2.2SMPSRTMBR、SMPTOC2。SRTSMPSRTSMP。SMPSMPSMPSMP。SMPSMP[10]。SRTSMP3MBRSMPSMP。SMP。3SMPMBR1MBR3MBR2。MBR1SMPSMPMBR2、MBR3。MBR2SMPMBR3MBR3SMPMengSMPSMPSMP[3]。SMPMBR3SMPMBR2MBR3SMP。2.3SMPSMP23a3b、SRTSMP。MBR。、SMP3c。SRTSMPSUVASRTSMP。SMP-UAPUV254SMP-UAP[18-19]。SRTSMP-UAPSMP。SUVASMPSUVASMP。15。2MBRCOD、Table2RemovalefficiencyofCODN-NH4andTPbyMBRindifferentSRTsMBR1MBR2MBR3COD92.32±2.2593.00±0.7092.37±1.7282.72±6.8276.87±4.6780.02±4.1280.47±1.3283.45±3.8587.67±4.57MBRSMPSMPTOC3。SRTSMP。1.79～1.91370.74～0.84。DaisukeOkamura[17]。3SMPTable3PercentagesofproteinandpolysaccharidesinSMPandtheratioofproteintopolysaccharideinsupernatantandmembranefoulinglayeratdifferentSRTSRT/dmPnmSMPmPsmSMPmPnmPs1351.13±12.0835.32±11.6428.43±8.5042.13±6.471.80±0.140.84±0.112654.82±14.9533.38±11.3128.71±9.0442.04±8.641.91±0.220.80±0.085253.45±11.3632.25±14.0429.87±10.1343.82±13.081.79±0.190.74±0.1315。2.4SMPSRTMBR、SMP。4SRT13d52dSMP3kDaSMP10kDa35.3%40.1%。14CSMP-UAPBAP[20]。NiSRTUAPBAP[21]。SRTSMP。MBRSMP。SMP64.6%～66.1%10kDaSMP24.7%～26.9%SMPSMPMBR。MBRSMP。58.6%～66.1%。Meng[22]。。2.5SMPSMPSMP。5SMPSRTSRTSMP。SRTBAP[18]LiangUAPBAP[10]。SRT。SRT。。SMP15.7%～21.7%71.7%～76.9%。50%。MAHJohir[1]。Yao[8]。2.6SMP6SRTMBRTMP。MBR1、MBR2、MBR3TMP51.2±0.140.68±0.050.91±0.10kPa/h。SRTSMP。MBRSMPMFR4。SMPrp=0.588p=0.600、rp=0.76p=0.45rp=0.586p=0.601MFRSMPrp=0.993p=0.023、rp=0.986p=0.018、rp=0.998p=0.018rp=0.999p=0.031。KimuraMBR,SMP[12]。Meng[22]。Shen10MBRSMPSMP[23]SRTSMP。[112]。Lee[24]。MBRSRTSMP。31MBRSMPSRTSMPSRT26dSMPSMP。2SRTSMP。SMP。3MBRSRT。。4MBRSMP。。[][1]JohirMAHVigneswaranSSathasivanAetal.Effectoforganicloadingrateonorganicmatterandfoulantcharacteristicsinmembranebioreactor[J].BioresourceTech-nology2012113154-160.[2]JinHuHongqiangRenKeXuetal.Effectofcarriersonsludgecharacteristicsandmitigationofmembranefoulinginattached-growthmembranebioreactor[J].BioresourceTech-nology2012SI12235-41.[3]FangangMengSo-RyongChaeAnjaDrewsetal.RecentadvancesinmembranebioreactorsMBRsmembranefoulingandmembranematerial[J].WaterResearch20094360043-1354.[4].A/O-MBRDOM[J].20123512224-229.ZhuChaoweiMaoJinlianHeLeietal.AnalysisofdissolvedorganicmatterinrestaurantwastewaterduringitstreatmentprocessbyA/O-MBR[J].EnvironmentalScience&Technology20123512224-229.inChinese[5]NiBingJieBruceERittmannYuHanqing.Solublemicrobialproductsandtheirimplicationsinmixedculturebiotechno-logy[J].TrendsinBiotechnology2011929454-463.[6]NamkungERittmannBE.EffectsofSMPonbiofilm-reactorperformance[J].JEnvironEngDivASCE19881141199-210.[7].[J].200829182-86.ZhangHaifengSunBaoshengZhaoXinhuaetal.Effectsofsolublemicrobialproductontheperformanceofsm。4SMPTable4ThecorrelationanalysisresultsforMFRandcharacteristicsofSMPSMPMFRrppSMPs0.5880.600SMPm0.9930.023Psm0.9860.018Pnm0.9920.082SMPm30kDa0.9980.018SMPs30kDa0.760.45SMPmHOA0.9990.0