AO生物膜工艺处理煤气废水的试验研究

©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(1.,150090;2.,712035):A/O,,A/ONH+4-NCOD2000mg/L0.5m3/h430d0.8kgCOD/(kgVSSd)0.08kgNH+4-N/(kgVSSd),2,CODBOD5NH+4-N1574.912.5mg/L,92%99%93%:;A/O;;;;:X703:C:1000-4602(2009)13-0074-03TreatmentofCoalGasificationWastewaterbyA/OBiofilmProcessGUANFeng2wei1,GAOGe2,ZHAOQing2liang1(1.SchoolofMunicipalandEnvironmentalEngineering,HarbinInstituteofTechnology,Harbin150090,China;2.HeadquartersofAirportConstruction,ChinaWestAirportGroupCo.Ltd.,Xian712035,China)Abstract:TheA/Obiofilmprocesswasusedtotreatcoalgasificationwastewater.Theeffectofsludgeload,nitrificationload,recycleratioofnitrifiedliquorandsludgeagewasinvestigated.There2sultsshowthattheA/Obiofilmprocessisabletoremoveammonianitrogenandorganicsfromcoalgasifi2cationwastewater.WhentheinfluentCODis2000mg/L,theinfluentflowrateis0.5m3/h,thesludgeageis30d,therecycleratioofnitrifiedliquoris4,thesludgeloadandnitrificationloadare0.8kg2COD/(kgVSSd)and0.08kgNH+4-N/(kgVSSd)respectively,aftertwomonthsofstableopera2tion,theeffluentCOD,BOD5andNH+4-Nare157mg/L,4.9mg/Land12.5mg/Lrespectively,andtheirremovalratesare92%,99%and93%,respectively.Keywords:coalgasificationwastewater;A/Obiofilmprocess;sludgeload;nitrificationload;recycleratioofnitrifiedliquor;sludgeageCOD,,[1],,,BOD5,CODNH+4-N[23]A/O(/)A/O47251320097CHINAWATER&WASTEWATERVol.25No.13Jul.2009©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(mgL-1)NH+4-N/(mgL-1)/(mgL-1)/(mgL-1)BOD5/COD6.58.51500250060180200500302000.220.29112COD:;BOD5:;TN:;NH+4-N:;NO-2-N:-;NO-3-N:-;pH:;DO:;:113,0.5m3/h11Fig.1Flowchartofexperiment,(A),6m3A(O),A,,O,O6m3O,AO,,1m32211A/OAO,,AO(COD400600mg/L),A4050r/minO24h,O:DO3.04.0mg/LpH7.08.0203010d,A/OA:DO0.2mg/LpH7.08.02030COD15002500mg/LNH+4-N60180mg/L30d0.2m3/h0.8m3/h,CODNH+4-N,,0.5m3/h,CODNH+4-N91%87%,A/O212COD2000mg/LNH+4-N180mg/L,430d0.5m3/h,NH+4-N,22NH+4-NFig.2InfluenceofsludgeloadoneffluentNH+4-Nanditsremovalrate2,0.8kgCOD/(kgVSSd),NH+4-N12.5mg/L,93%;0.8kgCOD/(kgVSSd),;57:A/O2513©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(kgVSSd)213COD2000mg/L,430d0.5m3/h0.8kgCOD/(kgVSSd),NH+4-N,NH+4-N,33NH+4-NFig.3InfluenceofnitrificationloadoneffluentNH+4-Nanditsremovalrate3,0.08kgNH+4-N/(kgVSSd),NH+4-N8.1mg/L,95%;0.1kgNH+4-N/(kgVSSd),NH+4-N13.2mg/L;0.12kgNH+4-N/(kgVSSd),NH+4-N19.3mg/L,,0.08kgNH+4-N/(kgVSSd)214COD2000mg/L,0.5m3/h30d0.8kgCOD/(kgVSSd)0.08kgNH+4-N/(kgVSSd),NH+4-N,4,NH+4-N95%,NH+4-N,,4215,0.8kgCOD/(kgVSSd),30d216A/OCOD2000mg/L0.5m3/h430d0.8kgCOD/(kgVSSd)0.08kgNH+4-N/(kgVSSd),222A/OTab.2OperationeffectofA/Obiofilmprocess/(mgL-1)/(mgL-1)/%COD198115792BOD55844.999NH+4-N17912.593SS1907.296:2,A/O,CODBOD5NH+4-N1574.912.5mg/L,92%99%93%,A/O3A/O,COD2000mg/L0.5m3/h430d0.8kgCOD/(kgVSSd)0.08kgNH+4-N/(kgVSSd),2,CODBOD5NH+4-N1574.912.5mg/L,92%99%93%:[1]GuedesAMFM,MadeiraLMP,BoaventuraRAR,etal.Fentonoxidationofcorkcookingwastewateroverallkineticanalysis[J].WaterRes,2003,37(13):3061-3069.[2],.AO[J].,2007,31(6):531-534.[3],,,.[J].,2002,35(6):26-29.:15842765055E-mail:[e-mail]:2009-02-27672513