A2O2生物膜工艺处理焦化废水研究

©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(1.,243002;2.,243061):A2/O2,(A1)(A2)(O1)(O2)A1A2O1O2HRT15.5151212h,2030,pH7.09.5,3.0,COD31.0%27.6%48.1%8.2%;A1NH3-N25.2%,A2O1O2NH3-N6.2%46.7%76.7%;CODNH3-N22711.5mg/L,CODNH3-N87.2%94.1%:A2/O2;;;:X703:A:1000-4602(2009)21-0005-04TreatmentofCokePlantWastewaterbyBiofilmReactorBasedonA2/O2ProcessZHENGJun1,2,LIHong2li1,ZHANGShi2hua1(1.SchoolofArchitecturalEngineering,AnhuiUniversityofTechnology,Maanshan243002,China;2.HuaqiEnvironmentProtectionScienceandTechnologyDevelopmentCo.Ltd.,Maanshan243061,China)Abstract:TheA2/O2biofilmprocesswasusedtotreatcokeplantwastewater,andtheremovalef2ficienciesofpollutantsbyanaerobicreactorA1,anoxicreactorA2,one2stageaerobicreactorO1andtwo2stageaerobicreactorO2wereinvestigatedrespectively.WhenHRTofA1,A2,O1andO2reactorsis15.5h,15h,12hand12hrespectively,thewatertemperatureis20to30,pHis7.0to9.5andthere2fluxratiois3.0,theaverageremovalrateofCODinthereactorsis31.0%,27.6%,48.1%and8.2%respectively.Theincrementofammonianitrogenis25.2%inA1reactor,andtheaverageremovalratesofammonianitrogeninotherreactorsare6.2%,46.7%and76.7%respectively.Theaverageconcen2trationsofCODandammonianitrogeninthesystemeffluentare227mg/Land11.5mg/Lrespectively,andtheaverageremovalratesofCODandammonianitrogenare87.2%and94.1%respectively.Keywords:A2/O2process;biofilmreactor;anaerobictreatment;cokeplantwastewater,COD,,[1],[2],,(BAF)[3],52521200911CHINAWATER&WASTEWATERVol.25No.21Nov.2009©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.[4],A2/O2,A2/O21111,11Tab.1QualityofcokeplantwastewaterCOD/(mgL-1)/(mgL-1)BOD5/(mgL-1)pHDO/(mgL-1)/112028009530045053079.50.10.22030112A2/O211Fig.1FlowchartofA2/O2biofilmprocess(A1)(A2)(O1)(O2),150mm,,A1A2O1O215.5151212L,HRT15.5151212h,3.01m3,500L,A1A246mm,O1O235mm,0.89g/cm3,4.8m2/g,35%,2.0%,0.5%113COD:;BOD5:;:;pH:;DO:JBB607114A2/O2A2/O,25%,A2/O2COD900mg/L80mg/L,CODP=1001KH2PO4,pH7.08.0,HRT54.5h2530,1520d10d,,;40d,,,,15dCOD,75%,2211COD1941mg/L,COD1359mg/L,COD31.0%;COD2798mg/L,COD25.4%:,,,COD31.0%,,,,()NH3-N,NH3-N204.6mg/L,NH3-N251.2mg/L,NH3-N25.2%,37.7%,,62521©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.:,COD;,()[5],NH3-NNH3-N,,;NH3-N99mg/L,NH3-N92.9mg/L,6.2%,8.5%:,,213O1COD476mg/L,COD247mg/L,COD48.1%NH3-N,NH3-N92.9mg/L,NH3-N49.5mg/L,NH3-N46.7%,54.2%(UBAF),,CODNH3-N,UBAF,,CODNH3-NCODNH3-N,COD0.8m;NH3-N1.04m,UBAFCODNH3-N214O2COD247mg/L,COD227mg/L,COD8.2%;NH3-N49.5mg/L,NH3-N11.5mg/L,NH3-N76.7%,80.7%;CODNH3-N87.2%94.1%,CODNH3-N1377.2mg/L,,O2COD,NH3-N[6],,,NH3-NCODNH3-N,A1A2O1O2,:NH3-N,3A2/O2A1NH3-N;CODO1;NH3-NO2A1A2O1O2HRT15.5151212h,2030,pH7.09.5,3.0,COD31.0%27.6%48.1%8.2%;A1NH3-N25.2%,A2O1O2NH3-N6.2%46.7%76.7%CODNH3-N1941204.6mg/L,A2/O2CODNH3-N87.2%94.1%,(12)7:A2/O22521©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.:[1].[P].:CN1837087,2008-04-16.[2]RebeccaM,JoanneQ,TomS.Theeffectsofmediasizeontheperformanceofbiologicalaeratedfilters[J].Wa2terRes,2001,35(10):2514-2522.[3]SorensenBL,KeidingK,LauritzenSL.Atheoreticalmodelforblindingincakefiltration[J].WaterEnvironRes,1996,69(2):168-173.[4]ZhanXM,RodgersM,EdmondO.Biofilmgrowthandcharacteristicsinanalternatingpumpedsequencingbatchbiofilmreactor(APSBBR)[J].WaterRes,2006,40(4):817-825.[5]MohanSV,RaoNC,SarmaPN.Low2biodegradablecompositechemicalwastewatertreatmentbybiofilmcon2figuredsequencingbatchreactor(SBBR)[J].JHazardMater,2007,144(1-2):108-117.[6]HoodCR,RandallAA.Abiologicalhypothesisexplai2ningtheresponseofenhancedbiologicalphosphorusre2movalbiomasstoorganicsubstrates[J].WaterRes,2001,35(11):2758-2766.[7],,.[J].,2008,33(1):103-106.[8],,,.MBBR[J].,2008,24(9):93-96.[9]Metcalf&Eddy.WastewaterEngineering:Treatment,DisposalandReuse(3rded)[M].NewYork:McGraw2HillInc,1991.[10],,,.[J].,2007,23(7):66-69.:(1984-),,,,:13871551362E-mail:[e-mail]:2009-07-01(7)22711.5mg/L:[1],,,.[J].,1997,13(1):14-17.[2],.A2/O2[J].,2003,29(1):15-17.[3]WestermanPW,BicudoJR,KantardjieffA.Up2flowbio2logicalaeratedfiltersforthetreatmentofflushedswinemanure[J].BioresourTechnol,2000,74(3):181-190.[4],,.[J].,2001,19(2):22-25.[5]HutchinsSR,SewellGW.Biodegradationofaromatichydromatichydrocarbonsbyaquifermicroorganismsunderdenitrifyingcondition[J].EnvironSciTechnol,1991,25(1):68-76.[6],,,.A2/O2[J].,2008,39(1):15-19.:(1965-),,,,:13305551660E-mail:[e-mail]:2009-06-20212521