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A/O＊赵文梅1,张志敏2,刘东方3,田素凤1,刘宝玉4,邓 彪4(1.天津城市建设学院,天津300384;2.天津市宁河县环保监测站,天津301500;3.南开大学环境科学与工程学院,天津300071;4.天津创业环保股份有限公司,天津300381) :A/O(—)。50%(φ()=50%)、HRT4.4hHRT2.2h,CODCr300～800mg/L、NH+4-N30～70mg/L,TN30～90mg/L,CODCr48mg/L,NH+4-N5mg/L,TN15mg/L,90%、91%60%,《》(GB18918-2002)A,A/O。 :;;A/O; :X703.1 :A :(K)08088(1002-1264)(2008)05-0008-04PerformanceofNitrogenRemovalofA/OProcesswithSuspendedCarriersZHAOWen-mei1,ZHANGZhi-min2,LIUDong-fang3,TIANSu-feng1,LIUBao-yu4,DENGBiao4(1.TianjinInstitutionofUrbanConstruction,Tianjin300384,China;2.NingheCountyEnvironmentalMonitoringCenterofTianjin,Tianjin301500,China;3.CollegeofEnvironmentalScienceandEngineering,NankaiUniversity,Tianjin300071,China;4.TianjinCapitalEnvironmentalProtectionCompanyLimited,Tianjin300381,China)Abstract:TheeffectofsuspendedcarriersontheperformanceofnitrogenremovalofA/Oprocessisintroduced.Theresultsshowthatundertheconditionsof50%(V/V)suspendedcarrier,HRT4.4hinoxicstageandHRT2.2hinanoxicstage,whentheconcentrationsofCODCr,NH+4-NandTNininfluentare300～800mg/L,30～70mg/Land30～90mg/L,theconcentrationsofCODCr,NH+4-NandTNineffluentarelessthan48mg/L,5mg/Land15mg/L,respectively.Thecorrespondingremovalefficienciesarehigherthan90%,91%and60%respectively.ThequalityofeffluentfromA/OprocesswithsuspendedcarriersmeetstheRankⅠ-Aofdischargestandardofpollutantsformunicipalwastewatertreatmentplant(GB18918-2002).AnditisclearlybetterthanthatoftraditionalA/Osystem.Keywords:wastewatertreatment;suspendedcarrier;A/Oprocess;nitrogenremoval 《》(GB18918-2002),1B1A。2TN。,,。A/O,,,。1 1.1 ,:CODCr300～800mg/L,BOD550～450mg/L,NH+4-N30～70mg/L,TN30～90mg/L,pH6.5～7.5。A/O。1.2 、A/O()、、,1。1 9 215200810URBANENVIRONMENTURBANECOLOGYVol.21No.5Oct.2008＊:(05ZHGCGX01800) :2008-06-03 A/O,540L,:××=1.50m×0.40m×1.20m,2/3,1/3。50%(φ()=50%)。,,。、,1。NO-2-N、NO-3-NN2,。,,,,NO-2-NNO-3-N。,。,,。,CODCr、TNNH+4-N。1.3 KaldnesTMK3,,,25mm,12mm,500m2/m3,0.95kg/m3。,20,,,[1],,,,[2]。1.4 CODCr:;DO:YSI;pH:PHS-30pH;NH+4-N:;TN:-;:105℃,。。2 A/O,、A/O。A/O。,1,C/N,。2.1 A/O。,HRT18h,DO3mg/L,pH6.5～7.5,,。15d,,。,HRT4.5h,,1,1mm,、、。,。2。2 2.2 CODCrCODCr,,A/O,CODCr30～80mg/L,81%。A/O,CODCr20～48mg/L,90%,GB18918—2002《》1A,A/O,A/O,。2.3 NH+4-N,、A/ONH+4-N34。 ,A/ONH+4-N85%,NH+4-N8mg/L;A/ONH+4-N91%,NH+4-N5mg/L,A/O。NH+4-N,。,A/OA/O,,,,。10 215 20082.4 TNTN56。 ,A/OTN50%,A/OTN60%,。A/O,TN,20%～30%,,TN。A/O,,,,。,A/OTNA/O,。5,A/O60%,TN15mg/L。TN,。DO3mg/L,30℃,。2.5 A/O HRT4.4h、HRT2.2h、4～12d,,A/ONH+4-N。1。1 A/ONH+4-N(d)(%)NH+4-N(mg/L)(mg/L)(%)14100～15058.64.79228100～15057.42.995312100～15058.10.799 1,NH+4-N。4d,,,,NH+4-N,5mg/L,,。,,NH+4-N。2.6 ,。,C/N4()、6()、8()、16()。C/N30d。2。2 C/NNH+4-N(mg/L)(mg/L)(%)TN(mg/L)(mg/L)(%)456.44.691.861.214.476.5653.23.593.460.713.577.8857.81.198.162.510.882.71654.63.294.161.89.285.111 , A/O ,C/N[3]。,4C/NNH+4-N,91%,C/N8,NH+4-N,98%。C/N,。C/N16,C/N,。,,,。,,,[4],NH+4-N,。,C/N,,,,,C/N,,,,,,NH+4-NTN。,4C/N,5mg/L15mg/L,《》(GB18918-2002)“1A”,,C/N=8。3 1)50%、HRT4.4h,HRT2.2h,A/OA/O,《》(GB18918-2002)1A。,A/OA/O。2)KaldnesTMK3,,,,[5],。,,,,,。3)4d,,。4),C/N,,,。C/N8,。[1] ,,,.[J].,2000,2(21):91-93.[2] ,,.[J].,2004,20(8):46-48.[3] SemmensMJ,DahmK,ShanahanJ,etal.CODandNitrogenRemovalofBiofilmGrowingonGasPermeableMembranes[J].WaterResearch,2003,7:4343-4350.[4] ,.[J].,2007,35(1):74-78.[5] ,,.[J].,2002,18(1):9-12.:(1974-),,,,,2。《》 、《》20087,ISBN978-7-03-021482-9。、、、、、、7,,,,4,、,。,()、,。、,、。(中国环境科学研究院环境科技情报中心)12 215 2008