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26 220103()JournalofFujianNormalUniversity(NaturalScienceEdition)Vol.26 No.2Mar.2010:1000-5277(2010)02-0115-04MBR提高A/O工艺污水脱氮效果的研究郑育毅,刘文伟,吴春山,李家兵(, 350108) :在A/O工艺系统中组合膜生物反应器(MBR)处理养猪污水,研究混合液污泥质量浓度(MLSS)、氨氮负荷(AL)、碱度、DO与HRT等因素对脱氮的影响.结果表明,通过MBR系统提升MLSS,可提高A/O工艺的脱氮效果,并可减少反应HRT及DO与碱度的消耗.:膜生物反应器;A/O工艺;脱氮;试验:X703.1 :A :2009-12-10 :(2009D47) :,,,.yuyi—1974@sina.comStudyonMBRUsedforImprovingDenitrogenationbyA/OProcessZHENGYu-yi,LIUWen-wei,WUChun-shan,LIJia-bing(CollegeofEnvironmentalScienceandEngineering,FujianNormalUniversity,Fuzhou350108,China)Abstract:ThroughthesystemwhichcombinedA/OprocesswithMBRtotreatpigsewage,thefactorsofdenitrogenationwerestudiedasMLSS、AL、alkalinity、DO、HRTandsoon.TheresultsshowedthatthesystemcanimproveA/OdenitrogenationprocessandreduceHRTandtheconsumptionofDOandalkalinitythroughtheenhancementMLSSbyMBR.Keywords:MBR;A/Oprocess;denitrogenation;experiment1 1.1 试验流程及设备—(A/O),1,2.1 A/O+2 A/O+ 85cm×65cm×60cm(L×B×H),3,255L.2(6),20Υ8mm.2~6(),1,,.1(),;6,,15L/h;1/32/320cm1;()2.、、、、、、,40cm×60cm(Υ×H).1.2 试验污水,1.1 mg·L-1d(CODCr)d(SS)d(NH3-N)d(TP)1055~1356120~346145.3~280.65.5~21.61.3 分析项目与方法COD:;MLSS:;DO:;:;pH:pH;NO2--N:N-(1-)-;NO3--N:;NH3-N:;TN:.2 150d,23~28℃,、、.A/ODO、MLSS、.,,,,20ddMLSS4000mg/L.,dMLSStHRT,CODCr、NH3-NTN,3,4.3 3.1 N的去除(1)A/O+:dMLSS4000mg/L、A/OtHRT=24h30d(3(a)).NH3-N185.7~279.3mg/L,(AL)0.065kgNH3-N/(kgMLSS·d),NH3-N55.6~66.2mg/L,NH3-N69.32%;TN69.5~78.3mg/L,NO2-7.14~9.28mg/L,TN11.11%.(2)A/O+:dMLSS6000mg/L、A/OtHRT=24h30d(3(b)).NH3-N145.3~280.6mg/L,(AL)0.050kgNH3-N/(kgMLSS·d),NH3-N33.5~13.7mg/L,21.4mg/L,NH3-N90.27%;TN38.6~49.4mg/L,NO2-17.4~28.8mg/L,TN55.2%.(3)A/O+:dMLSS8000mg/L、A/OtHRT=20h30d(3(c)).NH3-N147.8~273.8mg/L,(AL)0.040kgNH3-N/(kgMLSS·d),NH3-N5.43~8.56mg/L,7.0mg/L,NH3-N96.68%;TN31.4~38.9mg/L,NO2-24.5~32.3mg/L,TN80.8%.116() 2010 3 ρMLSS3.2 硝化与反硝化程度,3NNO2-,NO3-;(1)TNNH3-N,(2)、(3)NO2-,DO2~3mg/LAL0.040~0.065kgNH3-N/(kgMLSS·d),NH3-N,NO2-.,(1)(2)、(3)TN.,(2)(3)NO2-,.(2)(3),(2)(3),(2)(3),,.3.3 COD的去除,CODCr1048~1356mg/L,(1)CODCr343mg/L,CODCr71.46%;(2)CODCr225mg/L,CODCr81.28%;(3)CODCr112mg/L,CODCr90.68%.MBRCODCr90%.3.4 MLSS和HRT的影响3.1(1)(2):tHRT24h,dMLSS(1)4000mg/L(2)64 COD000mg/L,NH3-N、TNCOD30%、40%14%,MBRdMLSS,.(3)(2),MBRdMLSS,tHRT,.(3)(2),tHRT,NO2--NTN,(NO2--N)tHRT.,tHRTNO2--N,,NO2--N.,MBRdMLSS,tHRT,;,tHRT,DO,,NH3-NTN.3.5 C/N与AL的影响C/NA/O(SND)2,C/N12,A/OSND;C/N,A/OSND.117 2 :MBRA/OC/N4~9,A/O.MBRdMLSS,(3)(2)(1).FA(),ALFA,FA.,AL0.065kgNH3-N/(kgMLSS·d)0.050kgNH3-N/(kgMLSS·d),NH3-N82.9%54.5%,AL0.040kgNH3-N/(kgMLSS·d),NH3-N19.9%,AL,FA,,,A/O.3.6 碱度与DO的影响,,pH7.5.3pH6.8~7.1,;MBR,,MBR.DO—.3DO2~3mg/L,DONH3-NTN.DO,,(1)(3),DO.4 (1)MBRA/O,COD.(2)MBRdMLSS,dMLSS、.(3)MBR,tHRTDO.(4)C/N,、,.(5)ALFA,AL0.040kgNH3-N/(kgMLSS·d),,A/O.参考文献:[1],.MBR[J].,2005,25(10):1325-1329.[2],,,.A2/O-MBR[J].,2008,21(1):57-60.[3],.MBR[J].,2003,16(4):42-44.[4],.MBR[J].,2009(9):168-174.[5],,,.ANAMMOXA2/O[J].,2003,24(6):121-124.[6],.[J].,2006,25(2):74-77.[7],,,.DOHRTMBR[J].,2007,39(6):887-890.[8],,,.A/O-MBR[J].,2009,35(1):100-103.(:)118() 2010
本文标题:MBR提高AO工艺污水脱氮效果的研究郑育毅
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