SBR法低温短程硝化实现与稳定的中试研究杨庆

　58　11　　　　　　　　　　　　　　　　　　Vol.58　No.11　200711　　Journal　of　Chemical　Industry　and　Engineering　(China)　　　November　2007　　　SBR杨　庆1,彭永臻1,王淑莹1,杨岸明1,李凌云2(1,100022;2,266033):,。,54m3SBR。,,,11.8～25℃,96%,95%。,SBR。:SBR;;;:X703.1　　　　　　:A:0438-1157(2007)11-2901-05Achievingandstabilizingshort-cutnitrogenremovalatlowtemperatureinpilot-scaleSBRYANGQing1,PENGYongzhen1,WANGShuying1,YANGAnming1,LILingyun2(1KeyLaboratoryofBeijingforWaterQualityScienceandWaterEnvironmentRecoveryEngineering,BeijingUniversityofTechnology,Beijing100022,China;2SchoolofEnvironmentalandMunicipalEngineering,QingdaoTechnologicalUniversity,Qingdao266033,Shandong,China)Abstract:Itisimportanttoachieveshort-cutnitrogenremovalfrommunicipalwastewaterforsavingenergyandcarbonsource.However,alowtemperature(10—20℃)affectstheactualapplicationofshort-cutnitrogenremovalfromwastewater.Inthisstudy,alargepilot-scaleSBRwasusedtotreatrealmunicipalwastewater.Thegoalofachievingandstabilizingshort-cutnitrificationatalowtemperaturewasmainlyinvestigated.Theresultsindicatedthatthroughreal-timecontrolandstep-feedoperatingpattern,short-cutnitrogenremovalwithnitriteaccumulationrateabove95%andnitrogenremovalefficiencyabove96%wasachievedat11.8—25℃.Thekeyfactorofachievingandstabilizingshort-cutnitrificationinpilot-scaleSBRwastheoptimizationofnitrifyingcommunitiesinsludgeowingtolong-termapplicationofreal-timecontrol.Keywords:SBR;short-cutnitrification;lowtemperature;real-timecontrol　　2007-04-02,2007-06-01。:。:(1979—),,。:———(Z0005186040421);“”(2006BAC19B03);———。　　[1],。　　Receiveddate:2007-04-02.Correspondingauthor:Prof.PENGYongzhen.E-mail:[e-mail]:supportedbytheNationalKeyTechnologiesR&DProgramofChina(2006BAC19B03).　AOBNOB,。Balmelle[2]10～20℃,。20℃,,。25℃。Hyungseok[3]Balmelle,22～27℃,15℃。[4]28～29℃。,Hellinga[5]SHARON:35℃,AOBNOB,。,,,、。10～25℃,(10～15℃)。,。[6-7],SBR,,。1　1.1　,,。。SCOD140mg·L-1,TN65mg·L-1,C/N。1.5,。。,SCOD、NH+4-N、NO-3-N、NO-2-N、TN、PO3-4-P、pH、、DO、ORP、MLSS。pH、DOORPWTWIQsensornetsystem184。1.2　,SBR,,54m3,1。1　Fig.1　Schematicdiagramandinstructionsofpilot-scalereactor　,,,,,。,,,1.44m3·min-1,,,2,,/,,。,330min,180min,240min,120min。,DO、ORP、pH,,,COD、NH+4-N、NO-2-N、NO-3-N、MLSS。,,。MLSS2500mg·L-1,SRT12～15d。1。2　2.1　4,2。,,pH、DO、ORP·2902·　　　　　　　　　　　58　1　Table1　ExperimentalschemePhaseControlT/℃Objective1fix-time14—20establishcontrolstrategies2real-time20—25examinereal-timecontrolstrategies;achievenitrogenremovalvianitrite3real-time25±1long-termstabilizenitrogenremovalvianitrite4real-time25—11effectoftemperatureonstabilityofnitrogenremovalvianitriteandnitrogenremoval2　Fig.2　ChangesoftemperatureandTNremovalefficiency———temperature;◇TNremovalefficiency　,。14～20℃,,,,,。,SBR,20～25℃。325℃,,。pHab,90%,。,,,,(25±1)℃,,0.095d-1。,,,,11℃,,,290%3　25℃Fig.3　Variationsofon-lineparametersandpollutantsat25℃　。4()(NO-x-N)。,,25℃,12℃2.57,12℃2.53。4　Fig.4　Specificammoniaoxidationrateandspecificdenitrificationrateatdifferenttemperatures　2.2　5,,=NO-2-NNO-2-N+NO-3-N×100%,·2903·　11　　:SBR5　Fig.5　Changesoftemperatureandnitriteaccumulationrate———temperature;△nitriteaccumulationrate　0.2%95%,。。(1)。pH“”(3a、b),pH,、。,,。(2),,20～25℃,22℃,,AOBNOB,,。(3)/。,(NO-2-NNO-3-N),[8],,。,。,,。AOB,NOB,NOB,,。2.3　,,AOBNOB,AOB,,,,。,AOB,,;、,、,,,、AOB,NOB。,,。,,,,,AOB。,Jones[9],AOB30℃5℃,,,AOB,,“”,。,2～3℃,,AOB,,。,pH,“”,。pH,,,。、,,NOB,,AOB,·2904·　　　　　　　　　　　58　,。,SBR,,,,,,,。3　　(1)54m3SBR,,,11.8～25℃,96%。(2)。,,NOB,NOB,。(3):,AOB,;,,。References[1]　KimDong-Jin,KimSun-Hee.Effectofnitriteconcentrationonthedistributionandcompetitionofnitrite-oxidizingbacteriainnitratationreactorsystemsandtheirkineticcharacteristics.WaterResearch,2006,40(5):887-894[2]　BalmelleB.Studyoffactorscontrollingnitritebuild-upinbiologicalprocessesforwaternitrification.WaterSci.Tech.,1992(26):1018-1025[3]　YooHyungseok,AnnKyu-Hong,LeeHyung-Jib,etal.Nitrogenremovalfromsyntheticwastewaterbysimultaneousnitrificationanddenitrification(SND)vianitriteinanintermittently-aeratedreactor.WaterResearch,1999,33(1):145-154[4]　GaoJingfeng(),PengYongzhen(),WangShuying().Theeffectoftemperatureonshortcutnitrification/denitrification.HighTechnologyLetters(),2002,12:88-93[5]　HellingaC,SchellenAAJC,MulderJW,etal.TheSHARONprocess:aninnovativemethodfornitrogenremovalfromammonium-richwastewater.WaterSci.Tech.,1998,37(9):135-142[6]　PengYongzhen,ChenYing,PengChengyao,etal.Nitriteaccumulationbyaerationcontrolledinsequencingbatchreactorstreatingdomesticwastewater.WaterSci.Tech.,2004,50(10):35-43[7]　WangShuying,GaoDawen,PengYongzhen,WangPeng,YangQing.AlternatingshortcutnitrificationdenitrificationfornitrogenremovalfromsoybeanwastewaterbySBRwithreal-timecontrol.JournalofEnvironmentalSciences,2004,16(3):380-383[8]　CesarMota,MelanieAHead,JenniferARidenoure,etal.Effectsofaerationcyclesonnitrifyingbacterialpopulationsandnitrogenremovalinintermittentlyaeratedreactors.AppliedandEnvironmentalMicrobiology,2005,71(12):8565-8572[9]　JonesRD,MoritaRY,KoopsHP,etal.Anewmarineammonium-oxidizingbacteriumNitrosomonascryotoleranssp.nov.Can.J.Microbiol.,1988,34:1122-1128·2905·　11　　:SBR