固化硝化菌处理微污染水中试研究贾宝秋

　　:2008-02-25:(06-K2-11):(1953—),,,.:1671-2021(2008)05-0850-04贾宝秋,侯帅华,吴银娜(,110168)　:研究中试条件下固化硝化菌对氨氮、亚硝酸盐氮、CODMn和浊度的去除效果,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菌体流失,采用包埋硝化菌固化技术,利用曝气流化床对微污染水进行处理.在水温为18～23℃,DO的质量浓度为4mg/L左右的条件下,当进水的NH4+-N的质量浓度平均值为2.06mg/L、HRT为50min,且在系统稳定运行后可将氨氮的质量浓度降至0.5mg/L以下,亚硝酸盐氮的质量浓度可由0.16mg/L以上降至0.1mg/L以下,提高了硝化细菌抗冲击负荷能力.但是对CODMn和浊度没有明显去除作用.包埋菌固化技术应用在微污染水处理方面具有较大潜力,若提高反应器内菌体投加量,将十分适合水厂使用.:;;;:TU991　　　:A　　　0　　[1-4],《2001》,20007%,,[5-7];,《》(CJ3020-93),《》(GB5749-2006),.,(),-,、、,1mg/L,,.,.1　,,,,,,,,[8].,,,.,,,.,,,.,[9].20089245　()JournalofShenyangJianzhuUniversity(NaturalScience)　Sep.　2008Vol.24,No.5(PEG),3mm×3mm×3mm,,,,,.,DO,[6]..2　2.1　8m、1m(6m3),1.10%(),,;7m3/h(HRT50min),4mg/L,0.6～0.8.1　2.2　1.18～23℃,、[10].1　　pH6.5～6.96.70/NTU3.95～21.85.00(CaO)/(mg·L-1)27.95～37.1032.36/(mg·L-1)1.640～4.0402.115/(mg·L-1)0.080～0.3400.1472.3　:HACH2100N(NTU);(T):;CODMn:;:(723G);:().3　3.1　112,,(),,,2.,[11].120.5mg/L,10d,,,,.,0.4～0.5mg/L.2　,18,1～2mg/L,3,18,1.0mg/L,,,,19,0.5mg/L.3.2　3.,210,10,,,160.1mg/L,24:851　　,250.1mg/L.3　NO2--N,NO2--NNO3--N.NO2--N,NO2--NNO2--N.(10d),,NO2N64%～89%.;,10d,,,,NH4+NO3-.,.,,.3.3　CODMnCODMn,CODMn,,CODMn,(4).4:CODMn10mg/L,5mg/L;118mg/L,,,;CODMn,,24CODMn.,CODMn.CODMn,,,,,.4　CODMn3.4　,,CODMn,CODMn,5.5　3.5　5.01,4.31,,,.(2),32.36mg/L,26.81mg/L.,.,pH,pH6.70,pH6.91,0.2..pH:CO2pH;pH.852　　()242　　()()/(mg·L-1)2.060.4876.7%/(mg·L-1)0.150.1033.3%CODMn/(mg·L-1)3.792.9422.2%(NTU)5.014.3114.0%/(mg·L-1)32.3628.0013.474　　,,.,.,10%,0.4mg/L,.,,15%～20%.,、,.,.:[1]　CarpenterSR,CaracoNF,CorrellDL,etal.Non-pointpollutionofsurfacewaterswithphosphorusandnitrogen[J].EcologicalApplications,1998,8(3):559-568.[2]　JarvieHP,WhittonBA,NealC.Nitrogenandphos-phorusineastcoastBritishrivers:speciation,sourcesandbiologicalsignificance[J].ScienceoftheTotalEn-vironment,1998,210-211:79-109.[3]　SimeonovV,StratisJA,SamaraC,etal.AssessmentofthesurfacewaterqualityinNorthernGreece[J].WaterResearch,2003,37(17):4119-4124.[4]　ChenZL,XuSY,XuQX,etal.Surfacewaterpol-lutioninYangtzeRiverDelta:patternsandcounter-measures[J].Pedosphere,2002,12(2):111-120.[5]　,.[J].,2004,30(11):1-4.[6]　,,,.DO[J].,2006,29(5):26-30.[7]　,,.[J].,2006,22(3):51-54.[8]　ChengRC,KrasnerSW,GreenJF,etal.Enhancedcoagulation:apreliminaryevaluation[J].JournalofAWWA,1995,87(2):173-184[9]　.[M].:,2002.[10]　WoolschalgerJ,RittmanBE.EvaluatingwhatismeasuredbyBDOCandAOCtests[J].RevueSciencedel'Eau,1995(8):372-385.PilotExperimentofImmobilizedNitrobacteriaTreatingMicro-PollutedRawWaterJIABaoqiu,HOUShuaihua,WUYinna(SchoolofMunicipalandEnvironmentalEngineering,ShenyangJianzhuUniversity,ShenyangChina,110168)Abstract:Purpose:Studiestheremovaleffectonammonianitrogen,nitrousacidnitrogen,CODMnandtur-bidityduringimmobilizednitrobacteria'spilotexperiment,andprovidereferencefortheactualproject.Technique:Curingtechnologycansolvetheproblemofcelllossandenhancethecapacityimpactofnitrify-ingbacteriacomparingbio-ceramicreactor.Treatingmicro-pollutedrawwaterseparatelybyusingimmo-bilizednitrobacteriapelletsinairlifeloopreactor.Resutlt:Continuouslyundertheconditionoftemperature18-23℃,DOabout4mg/L,andafterthestableoperation,NH+4-Nwillbefrom2.06mg/Lto0.50mg/Lbelow,NO2-2-Nfrom0.16mg/Lto0.05mg/Lbelow,butCODMnandturbiditywillnotbeobvi-ouslyremoved.Conclusion:Allillustratethepotentialofimmobilizednitrobacteriainthetreatmentofmicro-pollutedrawwaterandthissystemiseasytobeoperatedandsuitableforwaterworksusingiftheimmo-bilizednitrobacteriacanincreaseinthereactor.Keywords:immobilizednitrobacteria;ammonianitrogen;nitrousacidnitrogen;waterworks24:853