单级自养脱氮SBR处理消化污泥上清液研究董良飞

SBR董良飞1,　DavidSalzgeber2,　HansruediSiegrist2,　魏　永1,　王利平1(1.江苏工业学院环境与安全工程学院,江苏常州213164;2.瑞士联邦供水、废水处理及水体保护研究所环境工程部,瑞士)　　　:　在瑞士联邦供水、废水处理及水资源保护研究所(Eawag)一个容积为400L的SBR中,对富含氨氮的消化污泥上清液进行了为期半年的自养脱氮(厌氧氨氧化)工艺稳定运行试验。结果表明,在同一SBR反应器中实现了亚硝化和厌氧氨氧化反应,在脱氮能力为680gN/(m3·d)及水力停留时间1d的情况下,该反应器对氮的去除率90%。试验结果还表明,该工艺可通过检测和控制电导率、pH或亚硝酸盐等参数达到稳定运行。　　:　SBR;　自养脱氮;　消化污泥上清液;　厌氧氨氧化:X703.1　　:C　　:1000-4602(2008)13-0096-04AutotrophicDenitrificationofDigestedSludgeSupernatantinSBRDONGLiang-fei1,　DavidSalzgeber2,　HansruediSiegrist2,　WEIYong1,　WANGLi-ping1(1.CollegeofEnvironmentalandSafetyEngineering,JiangsuPolytechnicUniversity,Changzhou213164,China;2.DepartmentofEnvironmentalEngineering,EAWAG,Switzerland)　　Abstract:　Atestofautotrophicdenitrification(anaerobicammoniaoxidation)ofammonia-richdi-gestedsludgesupernatantwasperformedforsixmonthsina400litreSBRattheSwissFederalInstituteofAquaticScienceandTechnology(EAWAG).Theresultsshowthatthenitrosationandanaerobicammo-niaoxidationarerealizedintheSBR.Whenthenitrogenremovalcapacityis680gN/(m3·d)andhy-draulicretentiontimeislessthan1d,theremovalrateofnitrogenismorethan90%.Thestableopera-tionoftheprocesscanbeobtainedbydetectingandcontrollingconductivity,pHornitrite.　　Keywords:　SBR;　autotrophicdenitrification;　digestedsludgesupernatant;　anaerobicammo-niaoxidation　　ChristianFux、(Eawag),SBR,,。,SBR50%～60%(NH+4-N)(NO-2-N),SBR。,50%,,[1]。、,,2006EawagWerdhölzliWädenswilSBR,。,。,、、。·96·24　1320087　　　　　　　　　　　　CHINAWATERWASTEWATER　　　　　　　　　　　　　Vol.24No.13Jul.20081　试验装置与方法1.1　Werdhölzli,1。1　Tab.1　Rawwastewaterquality　　/℃26.8±1/(mS·cm-1)5.5±0.1pH7.8±0.1/(mg·L-1)650±50/(mg·L-1)0.2/(mg·L-1)0.2COD/(mg·L-1)750±60TOC/(mg·L-1)300DOC/(mg·L-1)941.2　400L()、、(1)。,。pH、、DO,Insitu,(NH+4-N、NO-2-NNO-3-N)。1　Fig.1　Schematicdiagramoflab-scaleequipment(SPSSiemensSimatic),(Citect),SBR(、、、)。(HRT),40dHRT3～7d,40～100dHRT0.9～3d,100～130dHRT0.8～3d,130～170dHRT1.5～3.5d。HRT≤20mg/L,。6,,(100125),100d。2　结果与讨论2.1　。30℃,25℃,20℃;,30min90min(10min,0.5%)。100d,2。2　Fig.2　Observationalgrowthcurveofanammoxbacteria2,100gN/(m3·d),2000gN/(m3·d)。,0.029d-1。40%～50%,0.06d-1,[2]。,,(HRT1d),(1℃6%),20℃,。2.2　NH+4-N·97·:SBR24　13,,,15min,;,(0～4.2h)、(4.2～7.4h)、(7.4～8.0h)。15minDO3。3　SBR()Fig.3　VariationofDO,NH+4-N,NO-2-NandNO-3-NinSBRunderintermittentaeration(oneperiod)3,,NO-2-N2～3mg/L;NO-2-NN2,;,1.5～2.0mS/cm。,。,[3、4]。,(4.2h,3.2h)。4。4　SBRFig.4　VariationofDO,NH+4-NandNO-3-NinSBRundercontinuousaeration,,(DO0.3～0.5mg/L),NO-2-N2～3mg/L。(2.0mS/cm1.2mS/cm),。,,,,,。NO-2-N,,,。,。,,。,,HRT。,NO-3-N(,),。2.3　,(pH、、DO),。pH,,pH6.8～8.0(5)。,1～2.5mS/cm,NH+4。,(NH+4+1.5O2+2HCO-3※NO-2+3H2O+2CO2)(NH+4+NO-2※N2+2H2O)。,(2NH+4+1.5O2+2HCO-3※N2+5H2O+2CO2)。,NO-2。NO-2-N,,·98·24　13　　　　　　　　　　　　　　　　　　　　　　　　　　。NH+4,。5　pHFig.5　VariationcurveofanammoxbacteriaactivitywithdifferentpHvalueInsitu,pH,,,。InsituNH+4-NNO-3-N,NO-2-N。2.4　6,SBR(2d,)。25℃20℃,,20℃HRT2d。SBR(8L),,6。6　Fig.6　Variationcurveofanammoxbacteriaactivitywithdifferenttemperature6,20℃30℃,。,NO-3-N,(15～20℃),。SBR,(6h),NO-2-N(),。3　结论(),,,。,,。:[1]　WettB.Solvedscalingproblemsforimplementingdeam-monificationofrejectionwater[A].NutrientManagementinWastewaterTreatmentProcessesandRecycleStreams[C].KrakowPoland:IWA,2005.[2]　StrousM,HeijnenJJ,KuenenJG,etal.Thesequencingbatchreactorasapowerfultoolforthestudyofslowlygrowinganaerobicammonium-oxidizingmicroorganisms[J].ApplMicrobiolBiotechnol,1998,50(5):589-596.[3]　StrousM,vanGrevenE,KuenenJG,etal.Effectsofaer-obicandmicroaerobicconditionsonanaerobicammonium-oxidizing(Anammox)sludge[J].ApplEnvironMicrobi-ol,1997,63(6):2446-2448.[4]　EgliK,BosshardF,WerlenC,etal.Microbialcomposi-tionandstructureofarotatingbiologicalcontactorbiofilmtreatingammonium-richwastewaterwithoutorganiccarbon[J].MicrobEcol,2003,45(4):419-432.:[phone]E-mail:[e-mail]:2007-12-19·99·:SBR24　13