AUSB中置曝气对CANON颗粒污泥工艺的影响成朔

39320183ENVIＲONMENTALSCIENCEVol．39No．3Mar．2018AUSBCANON11*122111．1001242．15009025±1℃Ｒ1、Ｒ2AUSBANAMMOXAUSBCANON．Ｒ1、Ｒ243d、56dCANON214.79μm、205.27μmΔNO－3-N/ΔTN0.128、0.129．90mg·L－1NLＲAUSBCANONNＲＲＲ188d507.46μmNＲＲ0.277kg·m3·d－1Ｒ2108d467.72μmNＲＲＲ187.73%．AUSBNOB125d0.136±0.004NＲＲ0.231±0.015kg·m3·d－1AUSB/NOB0.127±0.003NＲＲ0.262±0.019kg·m3·d－1．AUSBANAMMOXCANONAUSB．AUSBX703.1A0250-3301201803-1286-08DOI10．13227/j．hjkx．2017082092017-08-242017-09-012014000026833TD021992～、[e-mail]*[e-mail]-SettingAerationontheCANONGranularSludgeProcessintheAUSBＲeactorCHENGShuo1LIDong1*ZHANGJie12LIShuai2CAOＲui-hua1LSai-sai11．KeyLaboratoryofBeijingforWaterQualityScienceandWaterEnvironmentＲecoveryEngineeringCollegeofArchitectureandCivilEngineeringBeijingUniversityofTechnologyBeijing100124China2．StateKeyLaboratoryofUrbanWaterＲesourceandEnvironmentSchoolofMunicipalandEnvironmentalEngineeringHarbinInstituteofTechnologyHarbin150090ChinaAbstractTheimpactofdifferentaerationpositionsonstartupandoperationofthecontinuousflowCANONgranularsludgeprocesswasconsideredbyinoculatingflocculentANAMMOXactivatedsludgeatroomtemperature25±1℃intwosetsofAUSBreactors．TheaerationunitofＲ1wasinstalled0.3mabovethebasewhiletheaerationunitofＲ2wassetatthebottom．Ｒ1andＲ2successfullydevelopedthegranuleCANONprocessonthe43rddand56thdrespectively．ThemeanparticlediameterofＲ1granularsludgeincreasedto214.79μmandtheeigenvalueΔNO－3-N/ΔTNwasmaintainedat0.128whereasthegranularsludgesizeofＲ2roseto205.27μmwithaneigenvaluemaintainedat0.129．ThenitrogenloadingrateNLＲwasgraduallyincreasedinthelowammonia-nitrogen90mg·L－1wastewaterwithinＲ1andＲ2．ThiswasmorebeneficialinＲ1resultinginthepersistentgrowthofCANONgranularsludgeandtheenhancementofthesystematicnitrogenremovalrateNＲＲ．TheaverageparticlediameterofＲ1roseto507.46μmin88dwhileNＲＲreachedupto0.277kg·m3·d－1．Ｒ2granulesludgeparticlesizewas467.72μmafter108dofcultivationandachieveda0.243kg·m3·d－1NＲＲwhichwas87.73%ofthatinＲ1．Duringthecourseofsteadyoperationthespecificanoxic/aerobicmodeofＲ1effectivelysuppressedNOBmicrobialactivitytheeigenvalueremainedaround0.127±0.003andtheNＲＲofＲ1wasmaintainedatabout0.262±0.019kg·m3·d－1．HoweverNOBwaspropagatedobservablyinthecontinuouslyaerobicＲ2whoseeigenvalueroseto0.136±0.004whileNＲＲwasmerely0.231±0.015kg·m3·d－1after125doflong-termoperation．Duringthewholeexperimentperiodtheintermediate-settingaeratedAUSBacceleratedtheformationofCANONgranularsludgeevolvingfromflocculentANAMMOXsludgeandbetternitrogenremovalperformanceandoperationalstabilitywereachieved．KeywordsAUSBgranularsludgeintermediate-settingaerationbottom-settingaerationoperationalstabilityCANON、ANAMMOXCANON1～3．CANON3AUSBCANONANAMMOX2～4CANON．、———extracellularpolymericsubstanceEPS5～7/EPSNOB7～10．CANON/AUSB．ANAMMOXAUSBＲ1AUSBＲ2/ANAMMOXCANONCANON-11．11.1AUSB11.55m100mm12.0L20.0L．、25±1℃．1．2．3．4．5．6．7．DO＆pH8．1AUSBFig．1Schematicofintermediate-settingaeratedAUSBreactorＲ10.3mＲ2．1.2ANAMMOXMLSS=4.56g·L－1、MLVSS=3.24g·L－187.72μm．NH42SO4NaHCO3NH+4-NNaHCO3pH=8.0±0.2．Ⅰ、Ⅱ41mL·L－1．145d4S1～S3S41．1Table1Majorwastewaterqualityandoperationalparametersduringtheexperiment/dＲ1Ｒ2NH+4-N/mg·L－1HＲT/hNLＲ/kg·m3·d－1DO/mg·L－1Ｒ11Ｒ11Ｒ2S11～431～57150180.200.06±0.020.16±0.040.15±0.05S244～5558～7090110.200.05±0.010.19±0.020.18±0.0256～7371～939080．280．07±0．010．24±0．040．22±0．03S374～8894～1109060．370．08±0．020．28±0．030．26±0．0489～98111～1189040．560．13±0．030．35±0．020．33±0．03S499～145119～1459060.370.07±0.020.28±0.040.26±0.031Ｒ1、、1.3DO、pH、pH/Oxi-340iWTWMLSS、MLVSSMastersize-2000．NH+4-N、NO－2-N、NO－3-N、N-1-782139-、12．EPSPN、PS、-．EPS10mL8000r·min－115min3.5min80℃30min10min8000r·min－115minPN、PSmg·g－1VSSMLVSS．FAFA=17×ρNH+4-N×10pH14×e6344273+T+10[]pHρNH+4-Nmg·L－1T℃．22.1AUSB13CANON1．200μm2、AUSB．S11～15dANAMMOX、AnAOB100.06L·min－1DO0.15mg·L－12．AUSBＲ1、Ｒ2MLSS4.56g·L－14.81g·L－1、4.93g·L－1DOAnAOB13MLVSS3.24g·L－13.46g·L－1、3.58g·L－1．1416d0.10L·min－1DO、．Ｒ19d27dMLSS2.53g·L－1MLVSS/MLSS=0.62715128.78μm3．Ｒ1Ｒ23SVIFig．3VariationofsludgemeandiameterandSVI2Fig．2Variationofthesludgeconcentration88213AUSBCANON20d38dMLSS1.88g·L－1138.38μm．S1AUSBMLSSMLVSS/MLSS56dMLSS3.37g·L－1、MLVSS/MLSS=0.66205.27μmΔNO－3-N/ΔTN0.1290.12716CANON．AUSBCANON43d3.37g·L－1214.79μmΔNO－3-N/ΔTN=0.128．S2NLＲNH+4-N150mg·L－190mg·L－1HＲT11h、715Ｒ1、Ｒ256d、70d323.68μm、311.08μm．S3NLＲ0.28kg·m3·d－10.37kg·m3·d－12AUSB．AUSBAnAOB13AOBDO“-”AOB17Ｒ188dMLVSS/MLSS0.805.87g·L－1507.46μm．AUSB108d467.72μmMLSS=5.44g·L－1、MLVSS/MLSS=0.77Ｒ1．NLＲ0.56kg·m3·d－1HＲT4hAUSBＲ1、Ｒ298d、117d434.17μm、412.11μmCANON．Ｒ1、Ｒ2Ｒ1SVI43d52.37mL·g－154.96±7.58mL·g－1Ｒ2SVI56d58.78mL·g－159.23±7.92mL·g－1．2.2AUSB2.2.1、21819CANON．2NLＲ．AUSBCANONNLＲ0.20kg·m3·d－10.37kg·m3·d－1．7．AUSB/AnAOB13AOB“-”17CANON88dMLVSS4.67g·L－1NＲＲ0.277kg·m3·d－1AUSB108dMLVSS4.21g·L－1NＲＲ0.243kg·m3·d－1AUSB87.73%．AUSBZhangAUSBNO20.234kg·m3·d－120．NLＲ0.56kg·m3·d－1CANON27AUSBMLVSS．2.2.2S4Ｒ1、Ｒ2106d、125d4NＲＲ0.262±0.019kg·m3·d－1、0.231±0.015kg·m3·d－148203AUSB．CANONNOBAOBAnAOB3NOB1．CANON30.1270.1270.127NOB16．Ｒ10.127±0.003NOBＲ29821392NLＲCANONTable2CANONgranularsludgediameterandsystematicnitrogenremovalperformanceunderdistinctNLＲNL