SBBR处理老龄化垃圾渗滤液的自养脱氮效能

SBBR李志刚,周健,张法国,刘轶(重庆大学三峡库区生态环境教育部重点实验室,重庆400045):针对老龄化垃圾渗滤液高氨低碳的水质特征,在序批式生物膜反应器(SBBR)中构建能承受高浓度氨氮的自养脱氮系统,探讨负荷及温度对该自养脱氮系统效能的影响,并考察两级SBBR自养脱氮系统的处理效能结果表明:负荷及温度对反应器自养脱氮效能的影响显著在温度为28DO为5.0mg/L挂膜密度为60%氨氮负荷为0.83kg/(m3d),反应器运行周期为进水0.25h反应23h沉淀0.5h出水0.25h,以及进水氨氮总氮BOD5分别为33303435120mg/L的条件下,两级SBBR系统的出水氨氮和TN分别为110434mg/L,对氨氮及总氮的去除率分别为96.7%和87.4%,实现了高效脱氮:SBBR;渗滤液;自养脱氮;高氨氮:X703:A:1000-4602(2010)17-0027-04:(2009ZX07315-005)StudyonAutotrophicNitrogenRemovalEfficiencyofSBBRinTreatmentofAgedLandfillLeachateLIZh-igang,ZHOUJian,ZHANGFa-guo,LIUYi(KeyLaboratoryofThreeGorgesReservoirRegionsEco-EnvironmentMinistryofEducation,ChongqingUniversity,Chongqing400045,China)Abstract:Aimedathigh-strengthammonianitrogenandlowcarbonsourceinagedlandfillleachate,anautotrophicnitrogenremovalsystemwhichcanendurehigh-strengthammonianitrogenwasconstructedinsequencingbatchbiofilmreactor(SBBR).Theinfluenceoftheammonianitrogenloadingandtemperatureontheefficiencyoftheautotrophicnitrogenremovalsystemwasstudied,andtheauto-trophicnitrogenremovalperformanceoftwo-stageSBBRwasinvestigated.Theexperimentalresultsshowthatammonianitrogenloadingandtemperatureaffecttheautotrophicnitrogenremovalefficiencynotably.Whentheinfluentammonianitrogen,totalnitrogenandBOD5are3330mg/L,3435mg/Land120mg/Lrespectively,theeffluentammonianitrogenandtotalnitrogenare110mg/Land434mg/Lwiththere-movalratesof96.7%and87.4%respectively.Thetwo-stageSBBRiscontrolledbythefollowingcond-itions:temperature28,DO5.0mg/L,biofilmdensity60%,ammonianitrogenloading0.83kg/(m3d),influent0.25h/reaction23h/sedimentation0.5h/effluent0.25hineachoperationcycle.Keywords:SBBR;leachate;autotrophicnitrogenremova;lhigh-strengthammonianitrogen,27第26卷第17期2010年9月中国给水排水CHINAWATER&WASTEWATERVo.l26No.17Sep.2010[1~3],,(1000mg/L)[3~5],,2008(GB168892008),(NH+4-N3000mg/L,BOD5/COD=0.035),SBBR,SBBR,1材料及方法111SBBRSBBR8L,;;SBBR24h,:(0.25h)(23h)(0.5h)(0.25h),11SBBRFig.1SchematicdiagramofSBBR1Tab.1CharacteristicsofleachatequalitypHCOD/(mgL-1)BOD5/(mgL-1)NH+4-N/(mgL-1)TN/(mgL-1)/(mgL-1)8.334005012010333020343520677030:CaCO312,,,CODNH+4-NNO-2-NNO-3-NTN12128DO5.0mg/L60%1/41/2,0.831.66kgNH+4-N/(m3d)122DO5.0mg/L60%1/21.66kgNH+4-N/(m3d),2813()123SBBR,SBBR28,DO5.0mg/L,60%,1/2,1.66kgNH+4-N/(m3d),SBBR2结果与分析2122Tab.2Nitrogenremovalefficiencyatdifferentammonianitrogenloadings/(kgNH+4-Nm-3d-1)NH+4-N/(mgL-1)NO-2-N/(mgL-1)NO-3-N/(mgL-1)TN/(mgL-1)COD/(mgL-1)0.838821.085106830101.6621430.6113236131202,0.83kgNH+4-N/(m3d),NH+4-NTN8821068mg/L,73.5%68.9%;1.66kgNH+4-N/(m3d),NH+4-NTN21432361mg/L,35.6%31.3%,0.83kgNH+4-N/(m3d)37.9%37.6%,COD8%~11.5%BOD5/COD0.035,COD[67]28第26卷第17期中国给水排水(),0.83kgNH+4-N/(m3d),COD11.5%,COD390mg/L;TN68.9%,TN2367mg/LCOD(),TN228mg/L,TN(2139mg/L),90.4%,9.6%,,,18g/L,1.5mm,,(AOB)(NOB),(),,[8]NO-2-N,,[9],,SBBR,,(ANA-MMOX),2233Tab.3Effectoftemperatureonautotrophicnitrogenremovalefficiency/NH+4-N/(mgL-1)NO-2-N/(mgL-1)NO-3-N/(mgL-1)TN/(mgL-1)COD/(mgL-1)1325382595273131202813610.7110155230103,28,NH+4-NNO-2-NTNCOD13,TN59.1%54.8%,13(23.8%20.5%)35.3%34.3%,,TN28NO-2-N,,NO-2-N13NO-2-N,,,[1011]23SBBRSBBR44SBBRTab.4Autotrophicnitrogenremovalefficiencyoftwo-stageSBBRmgL-1NH+4-NNO-2-NNO-3-NTNCOD13610.71101552301011010114343428524,SBBR,110mg/LTN434mg/L,96.7%87.4%;62.7%37.3%,SBBR,,3结论0.83kgNH+4-N/(m3d)28DO5.0mg/L60%,TN1068mg/L,68.9%1328,TN20.5%54.8%SBBR,NH+4-N110mg/L,96.7%;TN434mg/L,87.4%62.7%37.3%:[1]SliekersAO,DerwortN,GomezJLC,etal.Completelyautotrophicnitrogenremovalovernitriteinonesinglere-actor[J].WaterRes,2002,36(10):2475-2482.[2]EgliK,BosshardF,WerlenC,etal.Microbialcompos-i29李志刚,等:SBBR处理老龄化垃圾渗滤液的自养脱氮效能第26卷第17期tionandstructureofarotatingbiologicalcontactorbio-filmtreatingammonium-richwastewaterwithoutorganiccarbon[J].MicrobialEco,l2003,45(4):419-432.[3],DavidSalzgeber,HansruediSiegris,.SBR[J].,2008,24(13):96-99.[4],,,.[J].,2008,29(5):1221-1226.[5],,,.(SBBR)[J].,2006,26(1):55-60.[6]ChenPH.Assessmentofleachatesfromsanitaryland-fills:impactofage,rainfallandtreatment[J].EnvironInt,1996,22(2):225-237.[7]KulikowskaD,KlimiukE.Theeffectoflandfillageonmunicipalleachatecomposition[J].BioresourTechno,l2008,99(13):5981-5985.[8]HaoXD,HeijnenJJ,vanLoosdrechtMCM.Sensitiv-ityanalysisofabiofilmmodeldescribingaone-stagecompletelyautotrophicnitrogenremoval(CANON)process[J].BiotechnolBioeng,2002,77(3):266-277.[9].[D].:,2003.[10]RuizG,JeisonD,ChamyR.Nitrificationwithhighn-itriteaccumulationforthetreatmentofwastewaterwithhighammoniaconcentration[J].WaterRes,2003,37(6):1371-1377.[11]HellingaC,SchellenA,MulderJW,etal.TheSHAR-ONprocess:Aninnovativemethodfornitrogenremovalfromammonium-richwastewater[J].WaterSciTechn-o,l1998,37(9):135-142.:(1982-),,,,E-mail:[e-mail]:2010-05-04(上接第26页)[11]LiuY,TayJoo-Hwa.Theessentialroleofhydrodynamicshearforceintheformationofbiofilmandgranularsludge[J].WaterRes,2002,36(7):1653-1665.[12]PicioreanuC,vanLoosdrechtMCM,HeijnenJJ.Two-dimensionalmodelofbiofilmdetachmentcausedbyin-ternalstressfromliquidflow[J].BiotechnolBioeng,2001,72(2):205-218.[13]WijeyekoonS,MinoT,SatohH,etal.Grow