SBBR同步硝化反硝化处理生活污水的影响因素李军

26520065　　　　　　ActaScientiaeCircumstantiaeVo.l26,No.5May,2006:(No.50521140075);SupportedbytheNationalNaturalScienceFoundationofChinaforinternationalkeycooperation(No.50521140075)andtheKeyLabOpeningFoundationofBeijing:　(1969—),,();*,E-mail:[e-mail]:LIJun(1969—),male,associateprofessor(postdoctor);*Correspondingauthor,E-mail:[e-mail],,,.2006.SBBR[J].,26(5):728-733LiJ,PengYZ,GuGW,etal.2006.FactorsaffectingsimultaneousnitrificationanddenitrificationinaSBBRtreatingdomesticwastewater[J].ActaScientiaeCircumstantiae,26(5):728-733SBBR李军1,彭永臻2,*,顾国维1,韦苏31.同济大学环境科学与工程学院,上海2000922.北京工业大学能源与环境学院,北京1000223.浙江工业大学建筑工程学院,杭州310014:2005-08-23　　　:2006-03-04　　　:2006-03-21:SBBR,.,,.(0.8～4.0mgL-1).4.0mgL-1,TN,TN..,TN,.,SBBRTN74%～82%.:;SBBR;;;;:0253-2468(2006)05-0728-06　　　:X703.1　　　:AFactorsaffectingsmiultaneousnitrificationanddenitrificationinaSBBRtreatingdomesticwastewaterLIJun1,PENGYongzhen2,*,GUGuowei1,WEISu31.CollegeofEnvironmentalScienceandEngineering,TongjiUniversity,Shanghai2000922.CollegeofEnvironmentandEnergySources,BeijingPolytechnicUniversity,Beijing1000223.CollegeofCivilEngineering,ZhejiangUniversityofTechnology,Hangzhou310014Received23August2005;　　　receivedinrevisedform4March2006;　　　accepted21March2006Abstract:Anaerobicsequencingbatchbiofilmreactor(SBBR)packedwithBaoerringswasusedtotreatrealdomesticwastewater.Theaimwastoachievesimultaneousnitrificationanddenitrification.TheSBBRisadvantageoustocreateanoxiccondition,andbiofilmcanabsorbandstorecarbonforgoodnitrificationanddenitrification.Aconcentrationofaverageoxygenrangefrom0.8to4.0mgL-1wasprovedveryefficientfornitrificationanddenitrification.VolumetricloadsofTNweredroppeddramaticallyandeffluentTNconcentrationincreasedquicklywhentheconcentrationofaverageoxygenwasmorethan4.0mgL-1.Theefficiencyofsimultaneousnitrificationanddenitrificationincreasedwithincreasingofthicknessofthebiofilm.TheinfluentconcentrationhardlyaffectedtheTNremovalefficiency,buttheeffluentTNincreasedwithincreasingofinfluentconcentration.Itissuggestedthatasubsequencefordenitrificationisaddedorinfluentamountisdecreasedforrequirementofeffluentquality.Atoptimumoperatingparameters,theTNremovalefficiencyof74%～82%couldbeachievedKeywords:sequencingbatchbiofilmreactor;SBBR;simultaneousnitrificationanddenitrification;dissolvedoxygen;biofilm;influentconcentration　　SBBR(Sequencingbatchbiofilmreactor)(SBR),SBR,(Wildereretal.,2001;Wilderer,1995;Woolard,1997;Kaballo,1997).(SND),DOI:牨牥牨牫牰牱牨牤jhjkxxb牪牥牥牰牥牭牥牥牭5　:SBBR(Hibiyaetal.,2003;Yooetal.,1999;Senetal.,1998).,.,();,.,,.,.,、(Pochanaetal.,1999a;Pochanaetal.,1999b).,.SBBR.SBBR,;、;.SBBR,.1　(Materialsandmethods)1.1试验装置SBBR5(Lietal.,2004),1.,200L,80cm×40cm×110cm.、,.,,219m2m-3,42cm.,.,;.1SBBRFig.1SketchofexperimentalequipmentforSBBR1.2试验用水和分析方法,,18～22℃,:CODCr300～1388mgL-1;BOD150～700mgL-1;SS100～400mgL-1;NH+4-N10～151mgL-1;TN20～180mgL-1;TP4～15mgL-1.CODHACH;MLSS、NH+4-N、NO-2-N、NO-3-N.DOWTW.1.3　试验方法1.3.1SBBR基本操作方法SBR:→→→→.SBBR:→→.,1/3.1.3.2不同溶解氧对SND的影响TN80～110mgL-1.TNTN.TN,TN,mg(Ld)-1,TN.NH+4-N.1.3.3不同进水对SND的影响,CODNH+4-N.,NH+4-NTN、TN.1.3.4不同生物膜厚度对SND的影响SBBR,,.,.:10,,,.1.3.5生物膜对COD的吸附储存特性　SBBR1L,.,,CODNH+4-N..,.,COD729　　　　　　　　　　26NH+4-N.2(Results)2.1SND过程中各种氮在SBBR内的变化2SBBRCOD.SBBR.NH+4-N,.NO-2-NNH+4-N,.,NO-2-N.NO-3-NNH+4-N,,.TNNH+4-N,.NO-3-N,TN.2SBBRFig.2VariationsofnitrogenwithtimeinaSBBRforsimultaneousnitrificationanddenitrification2.2溶解氧对SBBR中SND效果的影响3SBBR.TNDO.DO,TN;DO2.5～4.0mgL-1,TN15mgL-1;DO4.0mgL-1,TN.3TNTNFig.3EffectsofDOonTNeffluentandTNvolumetricloadDO2.5mgL-1,TN,60mg(Ld)-1;DO2.7～3.6mgL-1,TNDO,,64～113mg(Ld)-1;DO4.0mgL-1,TNDO,46mg(Ld)-1.2.3不同进水对SND的影响,COD/NH+4-N(4),,NH+4-NCOD.4NH+4-NCODFig.4ThevaluesofNH+4-NandCODintherawwastewater5NH+4-N.3.2～3.6mgL-1,NH+4-N(41.2～119.1mgL-1),TN,.TN,(NH+4-N)TNNH+4-N.5NH+4-NTNTNFig.5EffectsofinfluentNH+4-NoneffluentTNandTNvolumetricload　7305　:SBBR2.4生物膜厚度对SND的影响13.0～3.8mgL-1,NH+4-NTN.1SNDTable1EffectofthicknessofthebiofilmonSND/mm/mg(Ld)-1NH+4-NTN1.6～2.892980.8～1.689780～0.88551,,NH+4-N;TN.0.8mm,TN.2.5生物膜对耗氧有机物的吸附特性6COD.,COD;40minCOD;CODCOD;COD.,COD.6CODFig.6AbsorptionofCODbasedondifferentconcentrationofrawwaterandtemperature7CODNH+4-N.,CODNH+4-N,:NH+4-N.NH+4-N.7CODNH+4-NFig.7ReductionrateofCODandNH+4-Nwithcontacttimeofwastewaterandbiofilmcarriers2.6连续运行SND的脱氮效果:2～4mgL-1,NH+4-N110mgL-1,19℃,2.8mm,,.8(5～8)TN.,,TN74%～82%.8Fig.8　TNremovalwithSNDincontinuousoperation3(Discussion)3.1SBBR同步硝化反硝化的机理TNTN,SBBR.,,:..731　　　　　　　　　　26.,.,,.,..,.,,.,COD,,,.,,;,,,、,.,COD.COD,(Haoetal.,1997).,NH+4-N,,.SBBR,,,.9SBBRSND.,.9SBBRSNDFig.9SubstancestransportationinthebiofilmforSNDinSBBR3.2溶解氧对SND的影响及选择(Senetal.,1998;Bertanza,1997),,1～2mgL-1.,,;,,,..,.,DO4.0mgL-1,TN,TN,.,.,,,.DO2.5mgL-1.DO2.5～4.0mgL-1,,NH+4-NTN.SBBR.3.3进水对SND的影响及控制C/N(Pochanaetal.,1999b).C/N,.,,.TN.TN,.,,,,;,,.,.,TN,,.,.SBBR,.,,,TN.4(Conclusions)1)SBBR7325　:SBBR,,.2)SBBR4.0mgL-1;4.0mgL-1,,TN.3).4),TN.5)、、,SBBRTN74%～82%.:彭永臻,教授、博士生导师.主要研究方向是污水生物处理理论与应用、污水处理系统自动控制与智能控制、水环境与污水处理工程的管理信息系统.发表论文350余篇.E-mail:[e-mail]:BertanzaG.1997.Simultaneousnitrification-denitri