城市污水三污泥系统自养脱氮与强化生物除磷易鹏

3110201010ENVIRONMENTALSCIENCEVol.31No.10Oct.201012*22111.1001242.100022“A/O+-”.HRT3.6hA/OTP≤0.5mg/L、DO0.2mg/LHRT=4.6h75%～96%27～30℃HRT=1.4hANAMMOXTN≤8mg/L1.6mg/LTN0.57kg/m3·d.、ANAMMOX.62.5%100%CO2..X703.1A0250-3301201010-2390-082009-11-262010-02-02“”2006BAC19B012008ZX07314-008KSCX2-YW-G-0541985～[e-mail]*[e-mail]movalandEnhancedBiologicalPhosphorusRemovalfromMunicipalWastewaterinaThree-sludgeSystemYIPeng1ZHANGShu-jun2GANYi-ping2CHANGJiang1PENGYong-zhen1CAOXiang-sheng11.KeyLaboratoryofBeijingforWaterQualityScienceandWaterEnvironmentalRecoveryEngineeringCollegeofArchitectureandCivilEngineeringBeijingUniversityofTechnologyBeijing100124China2.BeijingDrainageGroupCo.Ltd.Beijing100022ChinaAbstractUsingathree-sludgesystemconsistedofanaerobic/oxicA/OprocesspartialnitritationandanaerobicammoniumoxidationANAMMOXreactorscost-effectiveremovalofnitrogenandphosphatefrommunicipalwastewaterwasachieved.TheexperimentalresultsshowedthateffluenttotalphosphorusTPoftheA/Osystemwaslessthan0.5mg/LunderhydraulicretentiontimeHRTof3.6h.Partialnitritationwithnitriteaccumulationefficiencyof75%-96%wasrealizedinthepartialnitritationsystemunderroomtemperatureDO0.2mg/LandHRTof4.6h.Undertemperatureof27-30℃andHRTof1.4heffluenttotalnitrogenTNandTNremovalrateofANAMMOXreactorwerelessthan8mg/Lwiththeminimumvalueof1.6mg/Land0.57kg/m3·drespectively.Inthethree-sludgesystemphosphateaccumulatingorganismsammonia-oxidizingbacteriaandAnammoxbacteriaexistedundersuitablyenvironmentalconditiontooptimizethemicrobialcommunitystructureandimprovetreatmentefficiencyofvariousunits.Autotrophicnitrogenremovalcanreduce62.5%oftheoxygensupplysave100%ofdenitrificationcarbonsourcestheoreticallylowerthesludgeproductionandgreatlydecreasecarbondioxideemission.Ascomparedtotraditionalbiologicalnutrientremovalprocessthethree-sludgesystemhasgreatadvantagesandpotentialinenergysavingandcarbondioxideemissionreductiontorealizesustainabledevelopmentofwaterresources.Keywordsmunicipalwastewaterthree-sludgesystemenhancedbiologicalphosphorusremovalpartialnitritationANAMMOXC/N、、、..、、A2O、UCT、CASS、UNI-TANK12..DOI:10.13227/j.hjkx.2010.10.02210.-ANAMMOX3～5、.HRTCO2.C/N.11.1、ANAMMOX31.1Fig.1Schematicdiagramofthree-sludgesystemA/O164L24.112L.156L/d75%SRT3～5d.DO2.0mg/L.274L..A=18cm2200r/min.215L.144L/dSRT200d.ANAMMOXUASB170cm8cm8.5L.40cm27～30℃.、142L/d..1.21.1932311/mg·L－1Table1Characteristicsofrawwastewater/mg·L－1pHCODTNNH+4-NNO－2-NNO－3-NTP7.0～7.87.561.6～309.2166.743.6～60.755.435.1～57.751.30～0.10.050.1～1.40.74.76～8.036.421.31.3.1A/OA/O/CODA2/O5L12000mg/L.SRT3～5d2～3SRTSRTCOD..1.3.2215L5L.MLSS12000mg/L.FISHfluorescenceinsituhybridization67AOBNOB.AOBNOB7.90%3.18%.MLSS4000mg/LSV30SVI35%85mL/gDO0.2mg/LHRT4.6h78.9%.A/OCOD.1.3.3ANAMMOXANAMMOXANAMMOX.1.48.CODN-1--TPpHpHWTWDODOWTWCaCO3MLSS.22.1A/O2.1.1TPTPC/P50～100∶1.A/OHRT3.6hMLSS3200mg/LTPTP2TP4.7～8.1mg/L5.8mg/LTP0.8～3.3mg/L3～5SRTTP0.5mg/L.TP80%95%A2/O、UCT、MUCT、JHB.A/O.9.2.1.2CODCODCODCOD3COD61.6～309.2mg/LCOD28.2～84.2mg/L46.0mg/LCOD70%.CODCODCODCODCODCOD.2.1.351dTPCOD4TP5.92932102TPTPFig.2VariationsofTPandTPremovalefficiency3CODCODFig.3VariationsofCODandCODremovalefficiencyA1～A2A/O1～2O1～O4A/O1～44TPCODFig.4VariationsofTPandCODinflowpathwayduringstableoperationperiodmg/LCOD245.4mg/L2TP18.9mg/L22.0mg/LCOD84.5mg/L61.7mg/L.COD.4TP0.2mg/LCOD40.3mg/L.TP0.4mg/L.2.22.2.15NH+4-N50mg/LNO－2-NNO－3-N1mg/L.NH+4-NNO－2-N1.0.20mg/L39323110mg/LTN50%.NO－3-N5mg/L1mg/LNO－2-N75%～96%.5Fig.5VariationsofNH+4-NNO－2-NandNO－3-NDO0.2mg/LHRT4.6hMLSS4600mg/L.DONOBDOAOB.DO.Hanaki1011AOBNOB.2.2.260d27.4℃pH7.62NH+4-N42mg/L.6.1NH+4-N、NO－2-NNO－3-N29.4、10.91.2mg/LNO－2-N90%.NH+4-NNO－2-NNO－3-NNO－2-NNO－3-N.pHNH+4-N6.267.14ANAMMOX.NH+4-N、NO－2-NNO－3-N14.2、22.9O1～O71～76Fig.6Parametervariationsinflowpathwayduringstableoperationperiod2.2mg/LNO－2-N91.4%.2.3ANAMMOX2.3.17ANAMMOXHRT1.4hNO－2-N/NH+4-N1.020mg/L10mg/LNO－3-N0.3～9.9mg/L.NH+4-NNO－2-N0.5mg/LNO－3-N0.9～11.0mg/L.493210NH+4-NNO－2-NNO－3-NANAMMOX、12.7Fig.7VariationsofNH+4-NNO－2-NandNO－3-N2.3.2TNTNTNTN8TN43.3mg/L23.0mg/LTN8mg/LTN90%ANAMMOX88%TN13TN.TNN0.39kg/m3·d0.57kg/m3·dTN.8TNTNFig.8VariationsofTNandTNremovalrateCOD/TN3.ANAMMOXCOD40～50mg/LCOD30mg/LCOD20%ANAMMOXCODCOD.73～76dNH+4-N/NO－2-N2.0TNNH+4-N/NO－2-N1.0TN.2.3.39Fig.9Parametervariationsinflowpathwayduringstableoperationperiod52dANAMMOX9.NH+4-NNO－2-NTNNO－3-N.NH+4-NNO－2-N1.2m85%30～120cm60%.ANAMMOX.ANAMMOX1415.593231ANAMMOX0～30cm30～120cm120～170cm.2.4、ANAMMOX.COD、TN、TPCOD、TN、TP10COD、TNTP30、80.5mg/L《》GB18918-2002A.COD85%94.4%TN90.8%96.1%TP95.3%98.3%.CODCODANAMMOXCOD20%COD≤30mg/LCOD.-ANAMMOM50%.10COD、TN、TPCOD、TN、TPFig.10EffluentCODTNandTPandremovalefficienciesinthree-sludgesystem3-ANAMMOX.CO2..①ANAMMOX②ANAMMOX、1617③.41A/OHRT3.6hTP≥95%HRT4.6h、DO0.2mg/L75%～96%ANAMMOXHRT1.4hCOD20%TN≥90%TN0.39kg/m3·d0.57kg/m3·d.2COD/TN3COD≤30mg/L、TN≤8mg/L、TP≤0.5mg/L《》GB18918-2002A.3-ANAMMOX50%..1MaYPengYZWangXL.ImprovingnutrientremovaloftheAAOprocessbyaninfluentbypassflowbydenitrifyingphosphorusremovalJ.Desalination200924630534-544.2KubaTVanLoosdrechtMCMHeijnenJJ