SBR系统中好氧颗粒污泥脱氮特性研究谢珊

2004,24(3)355~359ChinaEnvironmentalScienceSBR,,,,(,410082),()(CODNH4+N61014),.2.,()(),.,.X703A10006923(2004)03035505StudiesonnitrogenremovalcharactersofaerobicgranularsludgeinSBRsystem.XIEShan,LIXiao-ming,ZENGGuang-ming,YANGGuo-jing,YANGQi(DepartmentofEnvironmentalEngineering,HunanUniversity,Changsha410082,China).ChinaEnvironmentalScience,2004,24(3)355~359AbstractTheremovalefficiencyofammoniumandtotalinorganicnitrogen(TIN)werestudiedinanaerobicgranularsludgeSBRsystemunderdifferentrunningmodes(withandwithoutanaerobicphase),anddifferentC/Nratio(COD/NH4+N)at6,10,14.Theinferenceadvantagesanddisadvantagesfornitrogenremovalrunninginthesetwomodeswerealsocompared.TheNH4+NremovalcurveindifferentC/Nratiosweredividedadoptingdividedphasefunctiontechnique;andtheremovalcurvesofthefirst(carbonsourceabundant)andthesecond(carbonsourcefeast)phasesweresimulated,andtheircharacteroflinearitywasfound.Theammoniumnitrogenremovalratesbeforeandafterthesephaseswerecalculated,andthemechanismofsimultaneousnitrificationanddenitrificationinaerobicgranularsludgesystemwasanalyzedbriefly.KeywordsaerobicgranularsludgebiologicalnitrogenremovalrunningmodeC/Nrationitrificationanddenitrification,[1],,[2],.[3,4],[5,6].pH.Beun[5]:;,,,.[6]COD100mg/L,,.,,,.,.11.120030919(WJ2002101);(200219)*,,[e-mail]35624SBR90mm,1100mm,7L,3.5L.1..,ACO,.,.;20.1Fig.1SchematicrepresentationoftheSBRreactor1.2,1.1Table1Componentsofthesyntheticwastewater(mg/L)(mg/L)COD210~420FeCl3⋅7H2O1.5NH4+N15~30CuSO4⋅5H2O0.03P6ZnSO4⋅7H2O0.12MgCl2⋅6H2O6CoCl2⋅6H2O0.15CaCl210MnCl2⋅2H2O0.12Na2CO343.1.4L,MLSS6.7g/L.1.32,2.1,230min,.280min.3,.,,CODNH4+N,.2Table2Parametersofdifferentoperationalmodes(min)1233030*2402402255300280280:*,15min11.4[7]NH4+N;NO3N;NO2NN-(1-)-;COD;pHDO.(TIN):TIN=[NH4+N]+[NO2N]+[NO3N]22.12.1.1COD420mg/L30mg/L(COD/NH4+N=14,,),75L/h,,2a,2b.3SBR3572a,,40min,,120min.,160min270min.21Fig.2ComparisonofnitrogenremovalbetweentwooperationmodesandamongdifferentCOD/NH4+Nratios610´142b,50min,0.31mg/(L⋅min)0.46mg/(L⋅min);50min,TIN,TIN.2.1.250min,.,17.3mg/L22.5mg/L,,53.6%52.7%,.,,.,,.2.22.2.130mg/L,75L/h,,.3(61014),2c2d.2c,,,.3,.,,6~14,140~170min.2d,,614,40.3%74.5%.20~30min,10min,30.90,0.74,0.65mg/(L⋅min).,,20~30min,.74.5%,.2.2.2,3.,,2,2...,33.(a)0102030400100200300(mg/L)(b)010203040500100200300(c)0102030400100200300t(min)(mg/L)(d)010203040500100200300t(min)(mg/L)(mg/L)358243Table3LinearfittingresultofdifferentCOD/NH4+Nratiosduringthefamineperiod[mg/(L⋅min)]6Y=33.240.255x0.2550.993810Y=26.870.154x0.1540.995314Y=21.660.133x0.1330.9981Beun[5].,[8];,.2,,.,,10~20min,COD50mg/L,[5];,.,2,.,2[9].,,[8].,3,,614,,0.255mg/(L⋅min)0.133mg/(L⋅min).,,,,.[10].2.3:[11,12].,NH4+NO2NO3;,(1mg/L),NH4+N2;,,NO2NO3N2;,NH4+NO3NO2N2.,,,().33.1,,,,.3.2(61014)050100150200010203040(min)(mg/L)3Fig.3Linearfittingresultoftheammoniaremovalvelocity610´3SBR359,,,74.5%;.3.3,;.,,.[1],,,.[J].,2003,4(7):7073.[2],,,.SBR[J].,2001,21(5):577581.[3],,,.SBR[J].,2003,24(4):9498.[4]BeunJJ,vanLoosdrechtMCM,HeijnenJJ.Aerobicgranulationinasequencingbatchairliftreactor[J].Wat.Res.,2002,36(2):702712.[5]BeunJJ,HeijnenJJ,vanLoosdrechtMCM.N-Removalinagranularsludgesequencingbatchairliftreactor[J].Biotech.andBioeng.,2001,75(1):8292.[6],.[J].,2003,23(4):380384.[7].[M].3.:,1989.[8],,,.[J].,2000,26(4):1720.[9],,.SBRpHORP[J].,2002,23(1):3944.[10],,,.[M].:,2001.[11],,,.[J].,2003,30(4):8891.[12]SeyfriedCF,HippenA,HelmerC,etal.One-stagedeammoni-fication:nitrogeneliminationatlowcosts[J].Wat.Sci.andTech.WaterSupply,2001,1(1):7180.(1980),,,,.4.20042(EPA)63.,EPA30.,2,.,2(JournalofPediatrics)14,.(:,,..)Chemical&EngineeringNews,February,16,44(2004)