低温下多级AOMBR工艺处理市政污水中试研究张晓飞

。20～35℃10℃1/2[1]。4～15℃10℃NH3-NTN[2]。[3-4]。、HRT、MLSS、、[5]。、、。AOMAOMBRMAO-MBR。11.1COD200～1600BOD5100～800mg/LSS、NH3-N、TN、TP170～1080、20～60、30～90、2～10mg/L。1.2MAO-MBR130m3/d。。1122211.3003872.300457AO-MAO-MBR7～13℃。DO2.0mg/L、150%、HRT18h、MLSS6g/LNH3-N、TN15g/(kg·m3)、20g/(kg·m3)COD、NH3-N、TN、TP96%、98%、85%、97.5%GB18918－2002A。MAO-MBRAX703.1A1000-3770(2017)[e-mail][e-mail]43320173Vol.43No.3Mar.,2017DOI:10.16796/j.cnki.1000-3770.2017.03.01873。1。。AO[6]。AOSRTAOBNOBSRTNOB[7]。SRT。MBRHRTSRTMAOMBR。20151145d。240。7～13℃。1.31。PVDF20m2480m2。8min2min2min1min。1.4。。1.52。22.12.1.1COD10℃2COD。2COD200～2448mg/LCOD40mg/LCOD2448mg/L2374mg/L1MAO-MBRFig.1MAO-MBRprocessflowdiagram2Tab.2MonitoringindicatorsandmethodsCODNH3-NTNTPpHDOMLSSHACHDRB200HACHDR6000HACHDR6000WTW340iLDOTM2CODFig.2CODremovalratesunderlowtemperature010203040500.000.050.51.01.52.02.53.0020406080100
/%t/d
COD/(gL)1Tab.1Themaintechnologicalparametersofbiochemicaltreatmentunit/(m3·d-1)/dρ(MLSS)/(g·L-1)HRT/hHRT/hHRT/h/%234/%3035～50815～251～216～2737～5020～2418～2210～1850～1504337450mg/LCOD53mg/L51mg/L。COD96%GB18918－2002A[8]。MAO-MBR。MBRHRTMLSS9g/L6g/L。R=150%。2.1.2NH3-N3MAO-MBRNH3-N。3NH3-N20～70mg/L。1.5mg/LNH3-NNH3-N1.0mg/LGB18918－2002A。NH3-N98%。NH3-NNH3-N35～50dDO2.0mg/LNH3-N。MAO-MBRNH3-NMBRMBRDO、NH3-N。2.1.3TN4MAO-MBRTN。4TN30～70mg/L45mg/L10mg/L。TNTN15mg/LGB18918－2002A85%。MAO-MBRAONO3--NTN。AOAAOAO。[9]。4TN。MAO-MBRTN。2.1.4TP5MAO-MBRTP。5TP2～8mg/LTP0.1mg/LTP97.5%。TP95%GB3NH3-NFig.3NH3-Nremovalratesunderthelowtemperature01020304050010203040506070020406080100
/%t/d
ρ(NH3-N)/(mg·L-1)ρ(NH3-N)ρ(NH3-N)4TNFig.4TNremovalratesunderlowtemperature01020304050010203040506070020406080100
/%t/d
ρ(TN)ρ(TN)ρ(TN)/(mg·L-1)AO-MBR7518918－2002A。MAO-MBRTPTP。BOD5/ρ(TP)30～100。MAO-MBR4。MBRSRTMLSSSRTSRT。SRTSRT35～50d。2.2。DO2～5mg/L、、[10]。2.2.1MAO-MBRMBRHRTSRTMBRMLSS9g/L。NH3-NTN3MLSS6。6MLSS6g/LNH3-NTN15g/(kg·m3)20g/(kg·m3)150g/(m3·d)180g/(m3·d)。34NH3-NTN28g/(kg·m3)35g/(kg·m3)GB18918－2002。。2.2.2DOHRTDOHRT7。7DO2mg/LDOMAO-MBRDO。DOHRT=25hDOTNNH3-N。MAO-MBRDO2.0～2.5mg/L。6、HRT25、15、20、18h4NH3-N、TNDOHRTNH3-N4NH3-N6Fig.6Sludgecontentandloadsituationduringtheperiodofoperationρ(MLSS)ρ(MLSS)/(g·L-1)0102030405001020304001234567
/(gkgm)t/dρ(TP)ρ(TP)ρ(TP)/(mg·L-1)01020304050012345678020406080100
/%t/d
5TPFig.5TPremovalratesunderlowtemperature7HRTDOFig.7TheimpactofHRTandDOcontent010203040500204060801000246810010203040
/%HRT/ht/d
ρ(DO)/(g·L-1)ρ(DO)43376Pilot-scaleStudyontheMAO-MBRProcessTreatmentofMunicipalWastewateratLowTemperatureZHANGXiaofei1,DAIHaiping1,2,SUNLei2,ZHANGCheng2,WUYun1(1.StateKeyLaboratoryofSeparationMembrane&MembraneProcesses,TianjinPolytechnicUniversity,300387;2.StateKeyLaboratoryofMembraneMaterialsandMembraneApplications,TianjinMotimoMembraneTechnologyCo.,Ltd,300457:Tianjin,China)Abstract:Aimedattheproblemofconventionalwatertreatmenttechnologycannotmeetthequalityrequirementofeffluentatlowtemperature,theMAO-MBRprocesstreatmentofmunicipalwastewaterwasstudiedwhichinvestigatedtheremovaleffectoforganics,nitrogenandphosphorusunderthelowtemperature(7~13℃).Theresultsshowedthat,whenmassconcentrationofDO,refluxvolumeratio,HRTandmassconcentrationofMLSSwere2.0mg/L,150%,18hand6g/Lrespectively,theNH3-NandTNloadwere15g/(kg·m3),20g/(kg·m3),respectively.AndtheremovalratesofCOD,NH3-N,TNandTPreached96%,98%,85%and97.5%,respectively.TheeffluentqualitycouldreachthefirstlevelAstandardofGB18918－2002.Keywords:MAO-MBRprocess;municipalwastewater;lowtemperature;thefirstlevelAstandard95%。HRTTNHRT=25hTNHRTHRT15hTNHRT15～25h。DO2.0mg/LHRT20、18hNH3-NTN。HRT18h。3MAO-MBR7～13℃CODNH3-N、TN、TP30.1mg/L0.89、6.70、0.10mg/L97%98%、85%、97.5%GB18918－2002A。NH3-N28g/(kg·m3)TN35g/(kg·m3)。DO2.0～2.5mg/L、HRT18h、150%、MLSS6g/L。[1],,.A2O-BAF[J].,2010,30(9):1195-1200.[2],,,.[J].,2007,25(5):26-29.[3],.[J].,2012,32(6):1-5.[4]KIMDJ,LEEDI,KELLERJ.EffectoftemperatureandfreeammoniaonnitrificationandnitriteaccumulationinlandfillleachateandanalysisofitsnitrifyingbacterialcommunitybyFISH[J].BioresourceTechnology,2006,97(3):459-468.[5],,.[J].,2001,21(5):569-572.[6]ZHUGuibing,PENGYongzhen,WANGShuying,etal.Effectofinfluentflowratedistributionontheperformanceofstep-feedbiologicalnitrogenremovalprocess[J].ChemicalEngineeringJournal,2007,131(1/3):319-328.[7],,,.AO[J].,2014,40(10):47-52.[8]:GB18918－2002[S].[9],,,.pH[J].,2007,1(9):10-14.[10],.[J].,2002,18(9):23-25.。100。20041020153。B、、。!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!AO-MBR77