硝化型曝气生物滤池的挂膜与启动

410环境工程学报Vo.l4,No.10201010ChineseJournalofEnvironmentalEngineeringOct.2010王建华陈永志彭永臻*(,100124),,,19HRT=55minDO=8mg/LNH+4N50mg/L,,1#18d,NH+4N100%;2#24d,,CODNH+4N846%912%,,6d,X703A16739108(2010)10219905BiofilmformationandstartupofnitrificationbiologicalaerationfilterWangJianhuaChenYongzhiPengYongzhen(KeyLaboratoryofBeijingforWaterQualityScienceandWaterEnvironmentalRecoveryEngineering,CollegeofEnvironmentalandEnergyEngineering,BeijingUniversityofTechnology,Beijing100124,China)AbstractInrecentyears,biologicalaeratedfiltersarewidelyappliedinsewagenitrificationprocess,nitrifyingbiologicalaeratedfilteremergesbecauseofdemand.TheeffectoforganicpollutantsonthestartupofnitrifyingBAFwasinvestigatedbyusingnaturalbiofilmformationcompoundwithquickexhaustsludgebiofilmformation.UndertheconditionsofT=19,HRT=55min,effluentDO=8mg/LandinfluentNH+4Nabout50mg/L,thestartuptimeofbothnitrifyingBAFwasdifferen,tthefirstnitrifyingBAFneededonly18days,whenitwassteadyrunning,NH+4Nremovalefficiencyreached100%,thesecondnitrifyingBAF,while,needed24dayswhenitwassteadyrunning,theremovalefficienciesofCODandNH+4Nwere846%and912%,respectively.Theresultsshowedtha,tcomparedwithrealsewagecontainingorganicpollutants,thestartuptimeofthefirstnitrifyingBAFfedwithartificialwastewaterwithoutorganicpollutantsdecreasedby6days.Thiswasmainlybecausetheyieldcoefficientofheterotrophicorganismswasgreaterthannitrifyingbacteria.Keywordsnitrificationbiologicalaeratedfilter;biofilmformationmethod;organicpollutants;ammonianitrogenremoval:!(2008ZX0731400801);(PXM2008_014204_050843):2009-08-20;:2009-09-16:(1985~),,,Emai:[e-mail]*,Emai:[e-mail](biologicalaeratedfilter,BAF),BAF:,SS,,,,[1](nitrificationbiologicalaeratedfilter)BAF,,,,[2,3],[4,5],4,BAF,BAF1112,100mm,2500mm,2000mm1BAFDO8mg/L,19(emptybedresidencetime,EBRT)25h,55min100mL/min,,1Fig1Schematicofexperimentalprocess12COD:COD;NH+4N:;NO-2N:N(1);NO-3N:;TpHDO:WTWinolablevel2131#:1#,:NH4Cl0145g/L,K2HPO4010125g/L,KH2PO4005g/L,CaCl200111g/L,MgSO4∀7H2O000911g/L,FeSO4∀7H2O001g/L1mL,:N(CH2COOH)315g/L,MnSO4∀H2O038g/L,CuSO4∀5H2O001g/L,H3BO3001g/L,Na2MoO4001g/L,KAl(SO4)2∀12H2O003g/L,CoCl2∀6H2O01g/L,NaCl01g/L[6]:NH+4N50mg/L,TP10mg/L,pH752#:2#,COD250mg/L,NH+4N50mg/L:SBR,221,2#1,2h,8h,,2,3d3d1/2,221#:1#,NH+4N2:((AOB)(NOB)),,,,[7]1#,,,DO,,,,,2Fig2Diagramofmicroscopicinspectionformicroorganisms220010:,2#:2d2#,,3,;;,1,:,,,DO,,,BAF,3312#COD[8]3,2d308%COD,7dCOD70%;8d,COD,9d617%,16dCOD,846%,COD50mg/L,32#CODFig3CODremovalefficiencychangeofNo.2column(60mg/L)2dCOD,;8dCOD,,2#,,,;,COD,16dCOD84.6%,,32BAFBAFNH+4N[9~11]4,1#2dNH+4N263%,7d100%,NH+4N,,NH+4N,,8dNH+4N472%,9dNH+4N338%10dNH+4N,14dNH+4N100%15dNH+4N100%,1#41#NH+4NFig4NH+4NconcentrationsofinfluentandeffluentandremovalefficiencyduringstartupinNo.1columnnitrificationBAF2201452#NH+4NFig5NH+4NconcentrationsofinfluentandeffluentandremovalefficiencyduringstartupinNo.2columnnitrificationBAFNH+4N50mg/L,2#1NH+4N8dNH+4N52NH+4N,NH+4N,3,2COD16d,COD,,COD,,21dNH+4NCOD,5,,2:,,COD,,;,,COD,,4,1#,;,5,2#,,33NO-2N6NO-2NNO-3N,AOBNOB,NH+4N,NH+4NNO-2N,,NO-3N,,,NH+4NNO-3N,:SBR,6,Morgenroth[12]SBR,AOBNOB,NOBAOB,SBR,,NH+4N4,NH+4N,26NO-2NFig6Nitriteaccumulationratesduringstartup341#:,1#,,NH+4N100%,,,2#:2#,2#,,,2d,2d,,,220210:4(1)1#18d,2#24d,,,(2),:,,;,,(3),1#,2#,,,[1],,..,2007,17(9):126~127[2],,,..,2006,32(8):42~45[3],,,.3.,2003,35(10):1216~1219[4],,.pHSBR.,2003,9(5):549~553[5],,.SBRpH.,2001,19(5):21~24[6],,,..,2007,28(7):545~550[7],..:,1999.308~312[8],,,..,2007,27(3):38~40[9]RogallaF.,BadardM.,HansenF.,etal.Upscalingacompactnitrogenremovalprocess.WaterSc.iTechno.l,1992,26(5~6):1067~1076[10]AllanM.,LeophldoM.E.,TomS.Acomparisonoffloatingandsunkenmediabiologicalaeratedfiltersfornitrification.J.Chem.Techno.lBiotechno.l,1998,72(3):265~274[11]PayraudeauM.,PaffoniC.,GousaillesM.Tertiarynitrificationinanupflowbiofilteronfloatingmedia:InfluenceoftemperatureandCODload.WaterSc.iTechno.l,2000,41(4~5):21~27[12]MorgenrothE.,ObermayerA.,ArnoldE.,etal.Effectoflongtermidleperiodsontheperformanceofsequencingbatchreactors.WaterScienceandTechnology,2000,41(1):105~1132203