A2/O2李红丽1,贾沛新2,胡晓铭3(1., 243002;2., 264000;3., 255000) :采用A2/O2(厌氧/缺氧/一级好氧/二级好氧)生物滤池工艺处理焦化废水,介绍了其工艺流程、挂膜方式,分析了挂膜阶段不同水质的处理效果。结果表明:采用人工接种和自然富集相结合并逐步改变进水有机负荷的方式进行挂膜,能高效地在填料表面形成较稳定的生物膜,并且能很快适应焦化厂气浮池处理后的焦化废水。运行60天后可认为挂膜成功,系统COD、氨氮去除率分别稳定在80%、60%以上。:焦化废水 A2/O2生物滤池工艺 挂膜:X703.1 :A :1674-0254(2010)01-0042-05StudyonFilmFormationofA2/O2BiofilterProcessforCokePlantWastewaterTreatmentLIHongli1,JIAPeixin2,HUXiaoming3(1.SchoolofArchitecturalEngineering,AnhuiUniversityofTechnology,Maanshan243002,China;2.YantaiAcademyofUrbanConstructionandDesignCo.Ltd.,Yantai264000,China;3.ZiboHarainEnvironmentalEngineeringCo.Ltd.,Zibo255000,China)Abstract:WetreatedcokeplantwastewaterbyA2/O2biofilterprocess,inthispaperwediscussedthetechni-calprocess,thewayoffilmformationanddifferenttreatmenteffectsduringfilmformationperiod.Theresultsshowedthatintegratingtheartificialinoculationandthenaturalconcentrationandenhancingtheorganicloadinggraduallycanformastablebiofilminthepaddingsurfaceeffectively,whichcanadapttheeffluentwaterfromair-floatingequipmentofacokewastewatertreatmentsystemveryquickly.Ittook60dtoformtheprincipialbiofilmandwemaythinkthefilmformationoftheoverallsystemtobesuccessfulwhenthesystemCOD,NH3-Neliminationratecanstabilizeatabove80%and60%.Keywords:cokeplantwastewater,A2/O2biofilterprocess,filmformation 、,、、、、、、[1],NH3-N、、、,[2]。,[3],A/O,A2/O,A/O2,COD、[4]。A2/O2,。,,,,,。1 1.1 (:2009-06-30;2009-07-05:,,1984,,。:。E-mail:lihongli-1984@163.com·42·20101 Vol.16 No.1),1。1 COD/(mg/L)1850~2800/(mg/L)95~600/(mg/L)1DO/(mg/L)0.1~0.2DOpH8.0~9.5pH/℃20~301.2 A1、A2、O1O2。150mm,3~6mm,。,、。A1、A2、O1、O215.5、15、12、12L。。11000L,6、7、8500L。1 1A2/O2。A1,;A2;O1;O2,。6、7HRT。,。A1、A26、7,,O1O2,O28,A2,。2 :。、,,。A2/O,25%。2.1 ,,。COD1300~1700mg/L、95~284mg/L,COD∶P=100∶1KH2PO4,pH7~8。,2,。15,3∶1。30,45,HRT15.5h,25~30℃。2.2 。O21∶3A2,,2,15,20HRT15h。·43·20101,:A2/O2 2.3 O1O2。COD300~500mg/L、30~100mg/L。30∶1,DO2mg/L[5],O2NaHCO3,。,1~2,、。5,。,10HRT24h。3 3.1 ,。45,。COD、2、3。2 COD3 2,2,COD84.4%。30COD173mg/L。3,,120mg/L,96.4%,2.89mg/L,GB8978—1996《》(≤15mg/L)。COD、,COD、,:(1),,。pH5.5~6.5,pH;[6,7],A1,,。(2),COD、,。[8],,。,。(3),。,COD80%,60%,,,,。,。3.2 A1A11,,40,,。2、3,A1COD15%;10%。A1pH4。4 A1pH4,30,·44·20101 Vol.16 No.1pH。50pH0.3。,,;,pH。,(,.A2/O2[D].,2007.):(1)COD;(2);(3)pH。A1。3.3 A240,,,。2、3,COD、,A2COD、,58%、5%。A25。5 A25,60%。A2,,,COD、。A2,。3.4 2,O1。2,COD,COD。30,O1COD75%,COD250mg/L,,COD,。1,O2。3,30,O260%,、、,,,。6 COD6COD。6,COD,,COD。COD1300mg/L,55%。,,,;,、,,COD,,,,。,58%,,,。4 ,A2/O2,。,,,,COD80%,60%,55。(下转第48页)·45·20101,:A2/O2 1 /m/dB111010090807010908070605032807060504050766656463610070605040301506656463626300605040302060064443424141000504030201015004636261662 dB 3-34~5-26~10-13,3dB3。3 0.1~2.9dB0.116.40.213.50.311.80.410.60.59.60.68.90.78.30.87.70.97.31.06.91.16.51.26.21.35.91.45.61.55.31.65.11.74.91.84.71.94.52.04.42.14.22.24.02.33.92.43.72.53.62.63.52.73.32.83.22.93.1 [1],GB12348—90[S].:,1990.[2].GB12348-2008[S].:,2008.[3].[J].,2000,12(2),27-28.[4].[J].,2007,19(2):50-51.[5].GB3096—2008[S].:,2008.[6].[J].,2005,17(6):46.(上接第45页),。 [1].[J].,1992,12(3):141-146.[2],,,.[J].,2003(6):44-48.[3].、(、)[J].,1992,10(4,5):54-56,56-63.[4],.A2/O[J].,2004,14(1):128-131.[5]GarridoJM.Simultaneousureahydrolysis,formaldehyderemovalanddenitrificationinamultifedupflowfilterunderanoxicandanaerobicconditions[J].WatRes,2001,35(3):691-698.[6],.[J].,2003,29(2):42-44.[7],,.[J].,1996,14(1):10-13.[8].[J].,2000,26(12):50-53.·48·20101 Vol.16 No.1