不同预处理方式缓解超滤膜污染的效能研究石洁

356201612SICHUANENVIＲONMENTVol.35No.6December2016··2016-06-27514780092015Z15110000031501392014000026833TD022013－2015。1991－2014。[e-mail]。100124ActivatedCarbonACBiologicalActivatedCarbonBACOzoneO3。ACBACEmptyBedContactTimeEBCT。DOCUV254。AC0.5g/L5g/L5min8h。BACEBCT30min60minIrreversibleFoulingIF。0.2mgO3/mgDOC0.94mgO3/mgDOC。0.48mgO3/mgDOCIF0.94mgO3/mgDOCIF。X703A1001-3644201606-0038-07EffectofDifferentPretreatmentMethodsonUltrafiltrationMembraneFoulingAlleviationSHIJieGUANYu-qiWANGKai-lunWANGBao-guiGUOJinSchoolofEnvironmental＆EnergyEngineeringBeijingUniversityofTechnologyBeijing100124ChinaAbstractTakingthesecondaryeffluentasthetreatmentwaterthestudyexploredtheeffectsofactivatedcarbonACadsorptionbiologicalactivatedcarbonBACfilterandpreozonationO3onthealleviationofmembranefouling.Besidestheireffectsonorganicmatterremovalefficiencyinwaterwerestudied.TheimpactofACdosageACadsorptiontimetheemptybedcontacttimeEBCTofBACandtheozonedosageonmembranefoulingwerealsoanalyzed.TheresultsshowedthatabovepretreatmentmethodscanremovetheorganicmattereffectivelyandreducetheDOCandUV254inwater.AstheACdosageincreasedfrom0.5g/Lto5g/Landtheadsorptiontimeextendedfrom5minto8hACadsorptionpretreatmentcannotalleviatemembranefouling.BACfilterincreasedtheIrreversibleFoulingIFwiththeEBCTextendedform30minto60min.Preozonationamelioratedthemembranefoulingandtheeffectswereenhancedastheozonedosageincreasedfrom0.2mgO3/mgDOCto0.94mgO3/mgDOC.AlthoughtheIFwasslightlyintensifiedwiththeozonedosageincreasingfrom0.2to0.48mgO3/mgDOCitobviouslydeclinedwiththeozonedosageincreasingto0.94mgO3/mgDOC．KeywordsSecondaryeffluentpretreatmentultrafiltrationorganicmattermembranefouling1。2－3。。4。EffluentorganicmatterEfOM5～7。DOI:10.14034/j.cnki.schj.2016.06.0078－9。10。ActivatedCarbonAC2、211、12、BiologicalActivatedCarbonBAC79OzoneO369、、13－14。。ActivatedCarbonAC、BiologicalActivatedCarbonBAC、OzoneO3EfOMAC、BACEmptyBedContactTimeEBCT、。11.1。1。1Tab.1WaterqualitiesofsecondarysewageeffluentDOCmg/LUV254cm－1pHTNmg/LTPmg/LCODmg/L6.65～8.810.15～0.217.54～8.6418.10～25.852.00～5.4230.60～54.001.21.2.1PolysulfoneMem-branePS20Sepro20kDa900L/m2·h·bar。PJ202。20M≤D＜16M。ZＲ－C－5。。15mg/min。1.2.21.2.2.12Tab.2Thecharacteristicsofactivatedcarbon%%g/L%mg/gmg/gPJ20≤5≥85380～560≤18800～1050150～2001.2.3.4.5.6.7.8.9.1Fig.1Theschematicdiagramofthedead－endultrafiltrationsystem9361SCMAmicon8050MilliporeUSAGC－readyEW－103AG0.1MPatV1J。JV。J=V/AtJm/sAm2t－sV－tm3。。200ml。JJ0J/J0。FilterabilityJeＲeversibilityJ1/J0ＲeversibleFoulingＲF=J1－Je/J0IrreversibleFoulingIF=J0－J1/J0TotalFoulingTF=ＲF+IFJe—J0—J1—。1.2.2.21ACACAC20℃。0.45μmACAC。2BACBACAEBCT=30minBEBCT=60minBAC0.45μm。3、。1.2L1L。HJ300。。30s、1min、5min0.2mgO3/mgDOC、0.48mgO3/mgDOC、0.94mgO3/mgDOC。0.45μm。1.3DOCTOCElemetarGermany。TICDOCNPOCDOC。2mol/LpH2TIC。UV254UNICO21001cm245nm。UltrafiltrationSepara-tionUFS1kDa5kDa10kDa100kDaEfOMMolecularWeightDistributionMWD。2。J/J023DOCUV2543。04352Fig.2Impactofdifferentpretreatmentmethodsonthedeclineofultrafiltrationmembraneflux3Fig.3Impactofdifferentpretreatmentmethodsonthereversibilityofultrafiltrationmembranefouling1463EfOMTab.3ＲemovalofEfOMbydifferentprocessingtechnologyUFAC20minACg/LACAC2g/LBACEBCTminO3O3mgO3/mgDOC0.5255min40min8h30600.200.480.94DOCmg/L7.1925.6067.1026.7665.9647.1586.5424.695.5404.7476.9406.3295.825UV254cm－10.1570.1300.1410.1330.1110.1500.1270.0770.1170.1070.1290.0890.0612.121/4J/J00.2J/J00.1。3IF。Shon2Zheng3。DOCUV25422%17%3。EfOM。EfOMMWCO10kDa85%PSMWCO=20kDaEfOM。MW＜1kDaDOCUV25460%66%。DOCUV254。2.2AC2.2.1ACAC0.5g/L、2g/L、5g/L。2aJ/J00.1AC。3ACACTFIFＲFIF。3ACDOCUV254ACAC。ACEfOM。Liang10。ShonAC2。20minACAC。2.2.2ACAC。2bAC。J/J00.1。3AC0～8hTF0.940minIFＲF。AC8hIF17.7%ＲF41%。3AC8hDOCUV25434.8%51%。ACMW＜5kDa。AC2。2435IF。ACIF。ACIFIF。2.3BACBACEBCT。2cEBCT30min60minBACJ/J00.1。3BACIFＲF。BACEBCTTFIF。3BACDOCUV254。BACEBCT30min60minMW＜1kDa56%80%。BACZheng5BACDOCUV254。BAC。BACBAC15。EBCTBAC。EBCT30min60minIF。2.4。2d。200ml0.20.480.94mgO3/mgDOC0.178、0.2030.272。30.2mgO3/mgDOC0.48mgO3/mgDOCTFIF。0.94mgO3/mgDOCIFＲF。3DOCUV254。MW＞100kDa10kDa＜MW＜100kD1kDa＜MW＜10kDMW＜1kDa。LinＲosal16－17。。Qu18。IF19。IF。0.94mgO3/mgDOCIFEfOMIF。31DOCUV254ACBACEBCTO3O3。2ACAC8hIF。BACIFEBCT30min60minIF。3。TFＲF3460.48mgO3/mgDOCIF。0.94mgO3/mg-DOCIF。1GaoWLiangHMaJetal.Membranefoulingcontrolinul-trafiltrationtechnologyfordrinkingwaterproductionAreviewJ.DESALINATION20112721-31-8.2ShonHKVigneswaranSKimISetal.Theeffectofpre-treatmenttoultrafiltrationofbiologicallytreatedsewageeffluentadetailedeffluentorganicmatterEfOMcharacterizationJ.WATEＲＲESEAＲCH20043871933-1939.3ZhengXMehrezＲJekelMErnstM.Effectofslowsandfil-trationoftreatedwastewateraspre-treatmenttoUFJ.DESALI-NATION20092492591-595.4.J.20101416-22.5ZhengXErnstMJekelM.Identificationandquantificationofmajororganicfoulantsintreateddomesticwastewateraffectingfil-terabilityindead-endultrafiltrationJ.WATEＲＲESEAＲCH2009431238-244.6.D.2007.7JanssenANVanAgtmaalJVanDenBroekWBPetal.PrefiltrationofwastewatereffluentEffectsonfoulantsandper-formanceduringdeadendultrafiltrationJ.DESALINATION20102502855-860.8ZhengXErnstMHuckPeterMetal.Biopolymerfoulingindead-endultrafil