MBR和BAF用于污水深度处理的工艺特性比较

ConventionalactivatedsludgeCASMembranebioreactorMBRBiologicalaeratedfilterBAFMBR[1][2]MBRBAF211.11020m3d-138,5BGB1891820021MBRBAF200092MBRBAF25MBRBAFMBRCODBOD5NH4+-NTP75%92%95%90%BAFCODBOD5NH4+-NTP70%78%29%82%MBRBAF0.82m-30.55m-3BAFMBRMBRTQ028.8X703.1A1000-3770(2010)04-0082-0042009-07-2050908164(2008ZX07316-002,2008ZX07421-002,2008ZX07101-006-07)8632009AA0629022006BAJ08B10,2006BAJ04A072007-008[e-mail]/mgL-1BOD5/mgL-1(SS)/mgL-1(NH4+-N)/mgL-1(TP)/mgL-1/pH6730197311288281014622.6119.7327.760.900.302.853210647.87.77.91Tab.1Waterqualityparametersoftheinfluent36420104TECHNOLOGYOFWATERTREATMENTVol.36No.4Apr.,2010821.2MBRBAFROMBRBAFRO11.31.3.1MBRMBR1020m3d-1LBH=2.0m1.2m3.0m3110.3m3min-150kPa0.55kW1102.4m3h-11235m80kPa0.37kW3.5m3h-130m1.5kW1PVDF2/mm0.85/1.453150000410m251020Lh-1m-261500mm790mmPLC1.3.2BAFBAF20m3d-1LBH=1.0m1.0m3.0m0.3m3min-150kPa0.55kW1.1m3min-150kPa1.5kW1.5m22.1MBRMBR9min3minBOD50.10.2kgm-3d-1610hMLSS55006100mgL-15%100140m3h-1m-2MBR2MBR313000mgL-12Lm-2+3000mgL-14%2.2BAFBAFNH3-N0.1kgm-3d-146h5070m-3kg-1UPVC0.3mBAF2PLC610Lm-2s-11220m3m-2s-11020min33.1MBRMLSS6100mgL-1BAF,[3]2dBAFSBRMBRBAFRORO1Fig.1SchematicdiagramofthepilotsystemMBRBAF8310dCODBAF3.240dMBRBAF2323MBRGB/T199232005BAFNH4+-N16.62mgL-1GB/T1992320053.2.15COD30197mgL-12COD75%70%BOD592%78%MBRBAFMBR20mgL-165%80%MBR3.2.2[4]MBRBAFTP2TP80%SSTPMBRBAFSSTPMBRNH4+-NBAFMBRNH4+-N90%99%BAFNH4+-NMBR3.2.3MBR[5]0.02m150000SS34mgL-11099mgL-1MBRSS0BAFSSBAFSS3.2.4MBRTransmembranepressureTMP[6]3MBRTMPTMP40d0.00032MPad-144.1MBRMBR15m3d-1MBR22kWhd-11.467kWhm-30.55kWh-10.807m-32MBRBAFTab.2AverageremovalrateofmainpollutantsinwastewaterbyMBRandBAFCODBOD5NH4+-NTPSSMBR/%BAF/%7570927895299082979394793Tab.3WaterqualityparametersoftheeffluentandreusestandardMBRBAFCOD/mgL-1BOD5/mgL-1(SS)/mgL-1pH/(NH4-N)/mgL-1(TP)/mg/L1323(17)25(3)03(0)7.67.9(7.8)24(3)0.172.13(1.04)0.020.23(0.07)1726(23)214(6)315(8)7.78.0(7.9)48(6)7.3623.58(16.62)0.080.29(0.18)6010-6.58.53010136484PERFORMANCECOMPARISONOFMBRANDBAFUSEDFORADVANCEDTREATMENTOFMUNICIPALWASTEWATERWangRongchang,TongHao,ZhiYushengStateKeyLabofPollutionControlandResourceReuse,KeyLaboratoryofYangtzeAquaticEnvironment,MinistryofEducationCollegeofEnvironmentalScienceandEngineering,TongjiUniversity,Shanghai200092,ChinaAbstract:Pilot-scalemembranebioreactor(MBR)andbiologicalaeratedfilter(BAF)wereoperatedforthepurposeofadvancedtreatmentandreuseofmunicipalwastewater.TheresultsofpilotexperimentsshowedthatMBRhadmuchbetterpollutionremovalperformancethanBAFattheaveragewatertemperatureof5.RemovalratesofCODBOD5NH4+-NandTPbyMBRsystemwere75%,92%,95%and90%,respectively.However,theremovalratesofCODBOD5NH4+-NandTPbyBAFcouldonlyachieve70%78%29%and82%,respectively.TheoperationalcostsofMBRandBAFwerecalculatedas0.82CNY/tonand0.55CNY/ton,respectively.Asaconclusion,itisrecommendedtoapplyMBRprocesswhenwastewaterreuseisthemainpurpose,becauseMBRhasmorestablepollutantremovalperformance,lessfootprint,andeasiertobemanagedandoperated.Keywordsmembranebioreactor(MBR);biologicalaeratedfilter(BAF);wastewaterreuse;lowtemperature600t-13000t-13110.012m-3MBR0.82m-34.2BAF20m3d-1BAF1.5kW20kWhd-10.55kWh-1BAF0.55m-3BAFBAF0.55m-35MBRBAFMBRBAFCODBOD5NH4+-NTPSS75%92%95%90%93%BAFCODBOD5NH4+-NTP70%78%29%82%MBRBAFMBR[1],,,.-[J].,2001,21(3):12-14.[2],.BAFMBBR[J].,2008,8(5):26-31.[3]AllantMann,LeopoldoMendoza-Espinosa,TomStephenson.Performanceoffloatingandsunkenmediabiologicalaeratedfil-tersunderunsteadystateconditions[J].WaterResearch,1999,33(4):1108-1113.[4],,,.-[J].:,2008,48(9):1472-1474.[5],.[J].,1995,16(5):79-81.[6]CitulskiJ,FarahbakhshK,KentF,etal.Theimpactofin-lineco-agulantadditiononfoulingpotentialofsecondaryeffluentatapi-lot-scaleimmersedultrafiltrationplant[J].JournalofMembraneScience,2008,325(1):311-318.20103!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!MBRBAF85