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:100926094(2005)04200462033,(,200237):,213mg/L,,(0135),2131812mg/L1812100mg/L0116d-1/(mg/L)0123d-1/(mg/L)01350161d-1,,,;,,,:;;;;:X502:A0,KsKs[1]Ks,,,,,Ks,,,[2],,1111A/OO,6L,22h,2h,4L,1[3],DO410mg/L,251,pH71581560d,112,,(3000r/min)5,NO22NNO32N(2L),,,DO=410mg/L,T=(201),pH=810113qmaxKs(FBR)[4]2L,800mg/L,1117mg/L1mL/min,15min1520mL,0145m2h,,qmax,;Ks1/2114,NH32N[5]1Table1EnrichmentculturemediumofnitrifyingbacteriaNH4HCO3NaClMgSO47H2ONa3PO4FeSO47H2OCaCl2KClNaHCO3/(mgL-1)10008017155100215254010003:2005201224:,,;,,:(20077007)2211,DO,,1FBRqmax=0163d-1Ks=1186mg/LMonodq=0.63S1.86+Sq;S,,(N=77,R2=0191,Chi^2/DoF=01005),Monod[6,7],KsKs(Ks=0125mg/L)[1,7]64Vol.5No.4541,S,MathCAD[8],:S1812mg/L,,;S213mg/L,,;213S1812mg/L,Murphy[9]Arvin[10],,,,,,;mg/L,212Monod,211,,22,,,,KH=0161d-1,2%10%,[2],0135,0123d-1/(mg/L)0135Lazarova[11],0152mg/L,,22,0145d-1/(m/g)015;,0116d-1/(mg/L)[1214]K10100113d-1/(mg/L)(T=1030),K,,,,[15]213,2,:t0=S00161X,t0135=S01650(1-(1-)0165)0114X,t1=ln(1/(1-n))0116X(,X)322,,,210mg/L,015mg/L(75%),t0t0135t1=111361182;011mg/L(95%),t0t0135t1=111553110()(),,,1Fig.1Effectofammoniaconcentrationonnitrificationrate2Fig.2Relationshipbetweennitrificationefficiencyandreactiontime2Table2SimulationresultsofsubsectionkineticsS/(mgL-1)18121002131812015213q=KHq=KMSnq=KLSKH=0161d-1,R2=0199KM=0123d-1/(mg/L)0135,n=0135,R2=0197KL=0116d-1/(mg/L),R2=01982%10%5%15%11%19%7420058,:Aug,2005(),,,,,()31),,Monod,,;,2)S1812mg/L,S918Ks,,0161d-1;S213mg/L,S112Ks,,0116d-1/(mg/L);213mg/LS1812mg/L,112KsS918Ks,0135,0123d-1/(mg/L)01353),,,,,,,References():[1]GeorgeTchobanoglousandFranklinLBurton.WastewaterEngineeringTreatment,DisposalandReuse[M].NewYork:McGraw2HillPublish2ingCompany,1993[2]ZhengXingcan()andLiYaxin().TechnologiesofRemovalofNitrogenandPhosphorusofWastewater()[M].Beijing:ChinaBuildingIndustryPress,1998[3]ZhangMing().ResearchontheApplicationTechnologyofNitrifyingBacteria()[D]:[PhDThesis].Shanghai:EastChinaNormalUniversity,2003[4]JiangWenzhuo()andZhuGuang().ActivatedSludgeTreatmentofIndustrialWastewater()[M].Beijing:ChinaBuildingIndustryPress,1997[5]StateEnvironmentalProtectionAdministrationofChina.StandardMethodsofMonitoringandAnalyzingonWaterandWastewater()[M].Beijing:ChinaEnvironmentalSciencePress,1997[6]CharlyRC,HoopenDGandMeleeAG.Nitrificationkineticsinacti2vatedsludgeatvarioustemperaturesanddissolvedoxygenconcentrations[J].WatRes,1980,14(8):13871396[7]ZhuSongmingandChenShulin.Anexperimentalstudyonnitrificationbiofilmperformancesusingaseriesreactorsystem[J].AquaEng,1999,20(2):245259[8]SuHongyu()andMoLi().MathCAD2000:ApplicationandExamplesofDataProcessing(MathCAD2000)[M].Beijing:DefenseIndustryPress,2000[9]MurphyKL,SuttonPM,WilsonRW,etal.Nitrogencontrol:designconsiderationforsupportedgrowthsystems[J].JWPCF,1977,49(4):549557[10]ArvinEandHarremoesP.Conceptsandmodelsforbiofilmperfor2mance[J].WatSciTechnol,1990,22(3):171180[11]LazarovaV,NogueiraR,ManemJ,etal.Controlofnitrificationeffi2ciencyinanewbiofilmreactor[J].WatSciTechnol,1997,36(1):3141[12]KorsLJ,MoormanHN,WindAPM,etal.Nitrificationandlowtemperatureinarawwaterreservoirandrapidsandfilters[J].WatSciTechnol,1998,37(2):169176[13]DelgadoS,ElmalehS,DlazF,etal.Ammoniaremovalinadeepre2claimedwastewaterreservoirbeforeagriculturalreuse[J].WatSciTechnol,2001,43(10):125132[14]YamaguchiT,MoldrupP,RolstonDE,etal.Nitrificationinporousmediaduringrapidunsaturatedwaterflow[J].WatRes,1996,30(3):531540[15]BarbaraA,BekinsEanWarrenandMichaelGodsyE.Acomparisonofzero2order,first2order,andMonodbiotransformationmodels[J].GroundWater,1998,3(1):117StudyoncharacteristicofsubsectionkineticsofnitrificationLIJuan2ying,ZHAOQing2xiang(DepartmentofEnvironmentalEngineering,EastChinaUniversityofScienceandTechnology,Shanghai200237,China)Abstract:Thispaperhasdoneastudyonthenitrificationkineticsbyusingenrichednitrifyingsludge.Theresultsindicatethattheconcen2trationofammoniahasaremarkableinfluenceonnitrificationrate.Whenthebulkconcentrationofammoniabecomeslessthan213mg/L,thenitrificationfollowsfirstkineticorder.Asbulkammoniaconcentrationincreases,half2order(0135inthispaper)orzero2orderreactionswilloccur.Therateconstantsofthefirst2order,half2orderandzero2orderare0116d-1/(mg/L),0123d-1/(mg/L)0135and0161d-1respectively.Thetimetoachievethesamenitrificationeffi2ciencyisverydifferentfornitrificationkineticandtherateisdiffer2ent.BecausethenitrificationrateofCompletedMixed2ActivatedSludgemainlydependsontheeffluentammoniaconcentration,thelowertheammoniaconcentrationis,thelowerthenitrificationrateisandthemoredifficulttoreachthoroughnitrification.Keywords:environmentalengineering;ammonia;nitrification;ki2netic;lowconcentrationCLCnumber:X502Documentcode:AArticleID:100926094(2005)042004620384Vol.5No.454