后置反硝化曝气生物滤池处理生活污水的研究

©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(,110168):,COD,20mg/L0.2Q(Q),COD,20mg/L,NH+4-NTNCOD5.6835.8mg/L,83.6%81%83.5%;0.2Q,NH+4-NTNCOD13.918.347.7mg/L,59%56.6%78.1%COD:;;;:X703:C:1000-4602(2009)19-0045-03Post2denitrificationBiologicalAeratedFilterforDomesticSewageTreatmentLIWei,FUJin2xiang,LIUShou2yong,HEJuan2juan,JIAOYang(SchoolofMunicipalandEnvironmentalEngineering,ShenyangJianzhuUniversity,Shenyang110168,China)Abstract:Post2denitrificationbiologicalaeratedfilterwasusedtotreatsimulateddomesticwastewater.UnderthepremiseofensuringtheeffluentCODtomeetthedischargestandard,20mg/Lmethanoland0.2Q(Qwastheinfluentflowofthesystem)rawwastewaterwereaddedintotwoseconda2ryanoxicfiltrationcolumnsrespectively.TheinfluenceofadditionalcarbonsourceonthenitrogenandCODremovalwasinvestigated.Theresultsindicatethatwhen20mg/Lmethanolisusedastheexternalcarbonsource,theaverageconcentrationsofNH+4-N,TNandCODintheeffluentare5.6mg/L,8mg/Land35.8mg/L,andtheirremovalratesare83.6%,81%and83.5%respectively.When0.2Qrawwastewaterisusedastheexternalcarbonsource,theaverageconcentrationsofNH+4-N,TNandCODintheeffluentare13.9mg/L,18.3mg/Land47.7mg/L,andtheirremovalratesare59%,56.6%and78.1%respectively.Comparedwiththerawwastewater,methanol,astheexternalcarbonsourcehasbetterremovalefficienciesofnitrogenandCOD.Keywords:post2denitrificationbiologicalaeratedfilter;nitrogenremoval;externalcarbonsource;methanol,,,(O/A),,,,AOAOSBRMSBRDEPHAN2OX[1](O/A),COD542519200910CHINAWATER&WASTEWATERVol.25No.19Oct.2009©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(mgL-1)NH+4-N/(mgL-1)NO-3-N/(mgL-1)TN/(mgL-1)pH/16026031.836.57.58.739.3457.58.2162011211Fig.1Schematicdiagramofexperimentalsetup,1800mm,70mm,400mm,,:,3.55.5mm,2.54.2mmO/A,,;,,,,,,,99%,113COD:;NH+4-N:;NO-3-N:;TN::pH:pH;:2211,,[2],TN4.2gCOD/gTN,67;,TN2.86gCOD/gTN,2.83.2[3]CODTN112.238.7mg/L,,20mg/L0.2Q(Q)21220L/h1L/min,20L/h,20mg/L0.2QNH+4-N31.836.5mg/L,NH+4-N4.95.6mg/L,83.6%;NH+4-N4.913.9mg/L,59%,NH+4-NNO-3-N,,NH+4-N[4];,NH+4-N,NH+4-N:NO-3-NNH+4-N,;642519©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(GB189182002)A213COD20mg/L0.2Q,COD22CODFig.2RemovaleffectofCODCOD112.235.8mg/L,83.5%;COD116.447.7mg/L,78.1%,COD,,COD,COD55mg/L,(GB189182002)B320mg/L0.2Q,,NH+4-NTNCOD5.6835.8mg/L,GB189182002,83.6%81%83.5%;,NH+4-NTNCOD13.918.347.7mg/L,59%56.6%78.1%:[1],.[J].,2004,11(1):15-18.[2]JeongJ,HidakaT,TsunoH,etal.Developmentofbiolog2icalfilterastertiarytreatmentforeffectivenitrogenremov2al:Biologicalfilterfortertiarytreatment[J].WaterRes,2006,40(6):1127-1136.[3],,,.[J].,2007,23(11):36-38.[4]BodkI,KratochvlK,ParikovEG,etal.Nitrogenre2movalinananaerobicbaffledfilterreactorwithaerobicpost2treatment[J].BioresourTechnol,2003,86(1):79-84.:13889330419E-mail:[e-mail]:2009-05-2574:2519