固化硝化菌处理微污染氨氮的小试与中试试验贾宝秋

200909255　()JournalofShenyangJianzhuUniversity(NaturalScience)　Sep.　2009Vol.25,No.5　　:2009-03-09:(06K211):(1953—),,,.:1671-2021(2009)05-0974-04贾宝秋,吴银娜,周　晶,崔宝康(,110168)　:分别研究小试中试条件下固化硝化菌对氨氮的去除效果及相关参数的选择,为实际工程提供参考.利用固化技术解决陶粒生物滤池等生物处理无法克服的问题.采用包埋硝化菌固化技术,利用气升式内循环好氧流化床和曝气流化床分别对微污染水进行处理.在水温为25～27℃,DO(溶解氧)为3～4mg/L的条件下,当进水NH+4-N平均为1.130mg/L,小试试验选最优水力停留时间HRT=30min时,出水氨氮平均为0.34mg/L,小于0.5mg/L的标准.中试试验在小试试验的基础上进一步证明了固化技术对微污染水中氨氮指标的去除效果,去除率约为70%以上,处理效果较好.包埋菌颗粒的密度为1.02～1.04g/cm3,具有良好的生物活性和流态化特性,在微污染水处理方面具有较大潜力,非常适于在自来水厂应用.:;;HRT;:TU991　　　:A　　　0　　.,《》(CJ3020-93).90%[1-4],(、).《》(GB5749-2006),.,,,,,,,[5].,[6-8],,.,HRT=30min;,,70%,.,,.1　1.1　(1).3mm,、、,1.02～1.04g/m3.　　(2),1.,145mm,1100mm,18L.10%(),25:975　　,.1　　　(3)(2).4mm,1m,7m,6.5m3,.,,,,,.,.2　1.2　,25～27℃,1.1.3　pHpH(YOKOGAWAMODELpH81);HACH2100N(NTU);;(723G);.1　pH6.5～6.96.70/NTU12.2～58.331.15ρ(CaO)/(mg·L-1)27.95～37.1032.36ρ()/(mg·L-1)0.847～1.4131.130ρ()/(mg·L-1)0.060～0.1180.089ρ(CODMN)/(mg·L-1)1.92～3.122.42UV2540.045～0.0980.0572　2.1　DO()3～4mg/L,0.3L/min,60min,20d,0.2mg/L,80%,,.2.2　HRT,HRT.,HRT,HRT,(3).3　　　3,HRT45min,26℃,1.13mg/L,0.22976　　()25mg/L,80%,0.3mg/L.HRT30min,25℃,1.13mg/L,0.34mg/L,70%.HRT20min,,,25℃,1.13mg/L,0.56mg/L,50%.HRT=10min,26℃,1.13mg/L,0.68mg/L,30%.HRT,HRT,,.HRT,,、[9-11].HRT45min、30min、20min、10min,80%、70%、50%30%,40.23mg/L、0.34mg/L、0.56mg/L0.68mg/L,HRT30min30min,0.5mg/L,《》(GB5749-2006)0.5mg/L.HRT=20min,,0.5mg/L.,,HRT30min.2.3　,,HRT=30min,,.4.　　4,HRT=30min0.5mg/L,(t=26d、35d、40d、55d),0.5mg/L,0.5mg/L,0.5mg/L,.,0.40mg/L,60%,,(70%),,.,,,.4　　　,,5.5　　　5,0.5mg/L,,.2.0mg/L,0.5～0.63mg/L,.,1.0mg/L,0.5mg/L,1.0mg/L,1.025:977　　mg/L,0.5mg/L,.3　　(1)HRT,HRT=30min,,.(2),HRT,,,,.　　(3),.,,.,,.:[1]　CarpenterSR,CaracoNF,CorrellDL,etal.Non-pointpollutionofsurfacewaterswithphosphorusandnitrogen[J].EcologicalApplications,1998,8(3):559-564.[2]　JarvieHP,WhittonBA,Neal.Nitrogenandphos-phorusineastcoastBritishrivers:speciation,sourcesandbiologicalsignificance[J].ScienceoftheTotalEnvironment,1998,6(3):79-109.[3]　ChenZL,XuSY,XuQX,etal.Surfacewaterpol-lutioninYangtzeRiverDelta:patternsandcounter-measures[J].Pedosphere,2002,12(2):111-120.[4]　SimeonovV,StratisJA,SamaraC,etal.AssessmentofthesurfacewaterqualityinNorthernGreece[J].WaterResearch,2003,37(17):4119-4124.[5]　RobertCC,StuartWK,JamesFG.Enhancedcoag-ulation:apreliminaryevaluation[J].JournalofAW-WA,1995,87(2):173-184.[6]　,,,.DO[J].,2006,29(5):26-30.[7]　,,.[J].,2006,22(3):51-54.[8]　.[M].:,2002.[9]　,,,.[J].,2008,24(13):85-88.[10]　,.[M].:,2000.[11]　,,.[J].:,2008,24(5):850-853.SmallandPilotExperimentofImmobilizedNitrobacteriaTreatingAmmoniaNitrogeninMicro-PollutedRawWaterJIABaoqiu,WUYinna,ZHOUJing,CUIBaokang(SchoolofMunicipalandEnvironmentalEngineering,ShenyangJianzhuUniversity,ShenyangChina,110168)Abstract:Thepaperaimstostudytheremovaleffectoftheimmobilizednitrobacteriatreatingammoniani-trogenundertheconditionsofsmallandpilotexperiment,andprovidereferenceforthepracticalproject.Cu-ringtechnologycansolvetheproblemofcelllossandenhancethecapacityimpactofnitrifyingbacteriacomparingbio-ceramicreactor.Themicro-pollutedrawwateristreatedseparatelybyusingimmobilizedni-trobacteriapelletsinair-liftloopandair-lifeloopaerobicfluidizedbed.Undertheconditionsthatthetemper-atureis25～27℃andDOis3to4mg/L,whentheinfluentNH+4-Nis1.130mg/LandbestHRTis30mininsmallexperiment,theeffluentNH+4-Nis0.34mg/Landlessthan0.05mg/L.Thepilotexperimentbasedonthesmallexperimentfurtherteststhatthecuringtechnologyhasbetterefficiencytoremoveindica-torofnitrogeninmicro-pollutedrawwaterandremovalrateisabout70%.Theembeddedimmobilizedni-trobacteriapelletswithdensityof1.02～1.04g/cm3havebetterbiologicalactivityandfluidizationinthetreatmentofmicro-pollutedrawwaterandarequitesuitablefortheapplicationinwaterworks.Keywords:immobilizednitrobacteria;ammonianitrogen;HRT;waterworks