动力学调控实现单一反应器内亚硝化与硝化过程的互相转化鲁颐琼

28720087　　　　　　ActaScientiaeCircumstantiaeVol.28,No.7Jul.,2008:“863”(No.2002AA601190)SupportedbytheHi-TechResearchandDevelopmentProgramofChina(863)(No.2002AA601190):(1983—),,E-mail:[e-mail];＊(),E-mail:[e-mail]:LUYiqiong(1983—),female,E-mail:[e-mail];＊Correspondingauthor,E-mail:[e-mail],.2008.[J].,28(7):1265-1271LuYQ,ZuoJE.2008.Interchangebetweenshort-cutnitrificationandnitrificationinonesinglereactorbydynamicregulation[J].ActaScientiaeCircumstantiae,28(7):1265-1271鲁颐琼,左剑恶＊,杨洋清华大学环境科学与工程系,北京100084:2007-06-04　　　:2008-04-25:.(AeratedUpflowSludgeBed,AUSB),20℃、DO2～4mg·L-1,pH(AOB)(NOB),,20d25d()95%15%95%,90%;,pH,30d23d90%10%90%.:;;;;:0253-2468(2008)07-1265-07　　　:X703　　　:AInterchangebetweenshort-cutnitrificationandnitrificationinonesinglereactorbydynamicregulationLUYiqiong,ZUOJiane＊,YANGYangDepartmentofEnvironmentalScienceandEngineering,TsinghuaUniversity,Beijing100084Received4June2007;　　　accepted25April2008Abstract:Interchangebetweenshort-cutnitrificationandnitrificationinonesinglereactorwasachievedbydynamicregulation.Inalab-scaleAeratedUpflowSludgeBed(AUSB)whichhadbeenoperatedundershort-cutnitrificationstatusforabout300days,mainlythepHvalueinreactorwasadjustedinordertoregulatethespecificgrowthrateofAmmoniaOxidizingBacteria(AOB)andNitriteOxidizingBacteria(NOB)at20℃anddissolvedoxygen(DO)about2～4mg·L-1.Theshort-cutnitrificationratio(theratiobetweennitriteandtotalamountofnitriteandnitrateintheeffluent)ofthereactorfedbyartificialinorganicwastewatercontaininghigh-strengthammoniawassuccessfullychangedfrom90%to10%andthento90%within20and25daysrespectively,andduringthewholeprocesstheammoniaremovalefficiencyofthereactorwasmaintainedabove90%.Whentheinfluentwaschangedtotheanaerobiceffluentofstarchprocessingwastewateraftertreatmentinafull-scaleUASBreactor,andthepHvaluewassimilarlyadjustedtoregulatethespecificgrowthratesofAOBandNOB,thesameprocessofchangingtheshort-cutnitrificationratio(from90%decreaseto10%andthenrecoverto90%)wasalsoachievedwithin30daysand23days,respectively.Keywords:dynamicregulation;short-cutnitrification;nitrification;short-cutnitrificationratio;wastewatercontaininghigh-strengthammonia1　(Introduction).,,,,(Sliekersaetal.,2002).,,,(Khinetal.,2004).,.,(,2005).、;DOI:10.13671/j.hjkxxb.2008.07.005　　　　　　　　　　28,,,.(2007),,、pH、DO、AOBNOB,pH、DO、、Monod;,,AOBμAOBNOBμNOB,μAOBμNOB,NOB,AOB,,.,AUSB,,,.1　(1.;2.;3.AUSB;4.;5.;6.;7.;8.)Fig.1　Schematicoftheexperimentalapparatusandprocess(1.influenttank;2.influentpump;3.AUSBreactor;4.gas-solid-liquidseparator;5.effluentport;6.airpump;7.thermometer;8.offgas)2　(Materialsandmethods)2.1　试验装置与工艺流程1.(AeratedUpflowSludgeBed,AUSB),3.05L,1.60L,1.45L.,、,;,;,.,,18～21℃.2.2　试验用水与污泥,2.1,NH4HCO3,300mg·L-1～400mg·L-1,10∶1KH2PO4;L1mL,(g·L-1)(,2004):Na2EDTA·2H2O(15)、ZnSO4·7H2O(0.43)、CoCl2·6H2O(0.24)、MnCl2·4H2O(0.99)、CuSO4·5H2O(0.25)、NaMoO4·2H2O(0.22)、NiCl2·6H2O(0.19)、Na2SeO3(0.08)H3BO4(0.02).Na2CO3pH.2UASB,,COD300mg·L-1,170～230mg·L-1,L1mL.Na2CO3pH.AUSB300d,,.,(VSS)2.0g·L-1,80%,,.2.3　分析项目与方法:;:DX-100;:;pH:ThermoOrion828pH;:Thermo810A;:;COD:TL-1ACOD;SSVSS:(,1998).3　(Results)3.1　进水为无机自配水时对AUSB反应器的动力学调控过程与结果,AUSB,,pH,AOBNOB,12667:.90d,5,:1※1(pH8.07.0)※※2(pH7.08.0)※2,AUSB、pH2.,AUSBDO4mg·L-1,300～400mg·L-1;NH-4-N0.8kg·m-3·d-1.2,10d,,,75～85%,,90%,7090%.2　AUSB(1.1,2.1,3.,4.2,5.2)Fig.2　DynamicregulationprocessoftheAUSBreactorfedbyartificialwastewater(1.short-cutnitrificationphase1,2.dynamicregulationphase1,3.nitrificationphase,4.dynamicregulationphase2,5.short-cutnitrificationphase2)2,1(1d～10d),AUSBpH8.0～8.2,,,90%,.,1,AUSBAOBμAOB0.46d-1,NOBμNOB0.0085d-1,μAOBμNOB,,.11d,1(10d～30d),,AUSB,NOBAOB,.,AUSB、DO,pH18.0～8.27.0,AOBμAOB0.46d-10.051d-1,NOBμNOB0.0085d-10.27d-1,1μAOBμNOBμAOBμNOB.,,,AOB,NOB,.2,,11dpH,19d7.0,10d7.0,,AUSB90%,pH,92%30d20%,,AUSB.,AUSB15d,3———(31d～44d).2,,AUSBpH7.0～7.4,90%,,,15%,.,,AUSBAOBμAOB0.036d-1～0.065d-1,NOBμNOB0.25d-1～0.27d-1,μAOBμNOB.45d,AUSB2(45～70d),AUSB.,AUSBDO,pH,AOBNOB.2,,AUSBpH7.08.0,,pHμAOB0.0510.41,,μNOB0.271267　　　　　　　　　　280.019,pH8.0,μAOBμNOB0.41d-10.019d-1,μAOBμNOB,,,AUSB.,pH,90%,,60d78%;61d70d,pH8.0,90%,AUSB15d.AUSBpH8.020d,(71～90d),,,AUSB95%.,AOBNOB0.41d-10.019d-1,μAOBμNOB,,.AOBNOB1.,,AOBNOBμAOBμNOB,pH、DO、、,,,,,(),,.1　Table1　OperationalanddynamicparametersineachphaseoftheAUSBreactorfedbyartificialwastewaterpH/(mg·L-1)μAOB/d-1μNOB/d-11(0～10d)8.060～800.460.008595%1(11～30d)8.0※7.030±100.46※0.0510.0085※0.2795%※15%(31～44d)7.030±100.036～0.0650.25～0.2715%±3%2(45～70d)7.0※8.030±100.051※0.410.27※0.01915%※93%2(70～90d)8.0～8.230±100.410.01995%3.2　进水为实际废水时AUSB反应器的动力学调控过程与结果,,AUSB,,,(,COD300mg·L-1,200mg·L-1),20dAUSB,,.90d,,AUSBpH、3.5,:1※1(pH8.06.5)※※2(pH6.58.0)※2.,AUSB,,,AUSBDO4mg·L-1,2～3mg·L-1,,20℃.,170～230mg·L-1,NH-4-N0.6kg·m-3·d-1,COD300mg·L-1.AUSBCOD,10dCOD10%,,,10%～20%.,,AUSB.20d,,75%,,,,,,2～12687:3mg·L-1,,90%,3.3　AUSB(1.1,2.1,3.,4.2,5.2)Fig.3　DynamicregulationprocessoftheAUSBreactorfedbyanaerobiceffluentofstarchwastewater(1.short-cutnitrificationphase1,2.dynamicregulationphase1,3.nitrificationphase,4.dynamicregulationph