短程硝化控制条件研究现状与应用分析刘海滨

刘海滨　李亚峰　田西满(　110168)　　　　,、pH、DO、SRT、、6,,　　　　　DO　AnalysisontheControllingConditionReseachandApplicationofShort-termNitrificationLIUHai-bin　LIYa-feng　TIANXi-man(SchoolofMunicipalandEnvironmentalEngineering,ShenyangJianzhuUniversity　Shenyang110168)Abstract　Basedontheintroductionofshort-termnitrificationmechanism,thispaperanalyzestheeffectsofthetemperature,pH,concen-trationofDO,concentrationoffreeammonia,sludgeageandconcentrationoforganicmaterialontheshort-termnitrification,discusseshowtocontroltheseaffectingfactorstorealizetheprocessbetterandtheproblemsfacedinpractice,andalsoprospectsthedevelopmentdirectionoftheresearch.Keywords　short-termnitrification　temperature　DOvalue　actualapplication　　(short-termnitrification),。、pH、、、、SRT。,,,。,,,。1　,,(1),(2)。:2NH4++3O2※2NO2-+4H++2H2O■G'0=-274.74kJ/e-eq(1):Ammoniaoxidizer(Nitrosomonas、Ni-trosospira、Nitrosococcu)。:2NO2-+O2※2NO3-■G'0=-148.28kJ/e-eq　　　　(2):Nitriteoxidizer(Nitrobacter、Nitro-spira)。2　,pH,,,,SRT,,,2。12RettmannSnoeyink[1](1984)。2,。2.1　1　5-25℃t5℃10℃15℃20℃25℃fs00.140.140.140.140.14Y(VSSa/NH4+-N)/mg0.330.330.330.330.33qn(NH4+-N/VSSa)/(mg·d-1)0.961.31.72.33.1qo2(O2/VSSa)/(mg·d-1)2.93.85.16.89.2μ/d-10.320.420.580.761.2KN(NH4+-N)/(mg·L-1)0.180.320.571.01.5Ko(O2)/(mg·L-1)0.50.50.50.50.5b/d-10.0450.0600.0820.110.15[θxmin]lim/d3.62.82.11.51.2SminN(NH4+-N)/(mg·L-1)0.0290.0530.0940.170.26SminO(O2)/(mg·L-1)0.0810.0830.0840.0850.085·20·　　　　　　　　　IndustrialSafetyandEnvironmentalProtection　　　　　　　　2009357July20092　5-25℃t5℃10℃15℃20℃25℃fs00.100.100.100.100.10Y(VSSa/NH4+-N)/mg0.8830.8830.8830.8330.883qn(NH4+-N/VSSa)/(mg·d-1)4.15.57.39.813qo2(O2/VSSa)/(mg·d-1)4.25.67.510.113.5μ/d-10.340.450.610.811.1KN(NH4+-N)/(mg·L-1)0.150.300.621.32.7Ko(O2)/(mg·L-1)0.680.680.680.680.68b/d-10.0450.0600.0820.110.15[θxmin]lim/d3.52.61.91.41.1SminN(NH4+-N)/(mg·L-1)0.0240.0470.100.200.42SminO(O2)/(mg·L-1)0.110.110.120.110.11　　4-45℃,12-14℃,,HNO2-;15-30℃,NO2-NO3-;30℃NO2-[2]。。SHARON。,125℃2KN,NH4+-N(0.18mg/L)NO2--N(0.15mg/L),NO2-,2μ,,。μ,,。[3],,,AOB,;,,。,。2.2　pHpHpH,pH7.0-8.5,pH6.0-7.5[4]。pH7.5-8.5,。pH,pH,,,。2.3　DODO。、,,。DOO2(1.2-1.4mg/L)(0.2-0.4mg/L)[5],Bernet[6],DO0.5mg/L,90%。[7,8],,,,DO,。,Novak[9],,NO2-。,Ko,0.5mg/L0.68mg/L,DO,,。,。DO。122,,,,,DO。。2.4　SRT12,2,SRT,SRT。,;,,。SRT。2.5　0.1-1.0mg/L,10-150mg/L。,,,。pH,,(46)·21·,,,,,。(6)。,,。,、,,、,,[6],,,,,。(7)。,,,,。(8)。,,。,,,,,。,,,。4　,,,,,,。,。,,。[1].:[].,2000.[2],,..:,2007.[3]..,2007(10):26-29.[4],,..:,2007.[5]..,2004(7):29-31.[6]..,2007(10):77-79.作者简介　邓慰,男,1984年生,湖南武冈人,硕士在读,现就读于中钢集团武汉安全环保研究院安全技术及工程专业。(:2009-01-08)(21)。,pH。,,,,。2.6　[10],DOpHCOD。DOpHDO、。DOpH,。。3　,,,。,,,。[1]BruceE,RittmannPerryL,McCarty.Enviromentalbiotechnology:prin-ciplesandapplications.McGraw-hillCompanies,inc.[2]XiaodiHao,JosephJ,MarkCM,etal.Model-basedevaluationoftemperatureandinflowvariationsonapartialnitrificationANAMMOXbiofilmprocess.WaterResearch,2002,36(19):4839-4849.[3],.、.,2007,23(15):1-3.[4],,,..(),2000,23(3):74-76.[5]HanakiK,WantawinC,Ohgaki.Nitrificationatlowlevelsofdissolvedoxygenwithandwithoutorganicloadinginasuspendengrowthreactor.WatRes,1990,24(5):1668-1672.[6]BernetN,DangcongP,DelgenesJP,etal.Nitrificationatlowoxygenconcentrationinbiofilmreactor.EnvEng,2001,127(3):266-271.[7],,./I..,2004,24(5):761-767.[8],,./II..,2004,24(6):769-775.[9]ONowak,KSvardal,PSchweighofer,etal.Thedynamicbehaviorofthenitrifyingactivatedsludgesystemsinfluencedbyinhabitingwastewatercompounds.WatSciTech,1995,31(2):115-124.[10],,,.DO、ORP、pHSBR.,2001,17(4):6-11.(:2008-11-06)·46·