搜索
2003,23(6)644~647ChinaEnvironmentalScience1,2,2,1(1.,1000842.,518057),.0.5~1.4mg/L,20~30min.,,,.100.4,90%65%.3,NO2NNO2N.3,NO2NNO2N.NO2N,,NO2N.X703.1A10006923(2003)06064404StudiesontheremovalofNH4+Ninrawwaterwithbio-ceramicreactorundertheconditionoflowtemperature.LIUGuo-qing1,SANGJun-qiang2,ZHANGXi-hui2,WANGZhan-sheng1(1.DepartmentofEnvironmentalScienceandEngineering,TsinghuaUniversity,Beijing100084,China2.ResearchCenterforEnvironmentalEngineeringandManagement,ShenzhenGraduateSchool,TsinghuaUniversity,Shenzhen518057,China).ChinaEnvironmentalScience,2003,23(6)644~647AbstractUtilizingtheresearchtechnologyofbio-ceramicpretreatmentstheNH4+NremovaleffectofbioceranuicreactorundertheconditionoflowwatertemperaturewasstudiedwithNH4+Nconcentrationintherawwaterof0.5~1.4mg/L,andtheHRTofrawwaterof20~30min.TheNH4+Nremovaleffectofthereactordecreasedwithloweringofwatertemperature;butspeakingall-sidedly,theeffectwasstilegoodrelatively.TheremovaleffectofNH4+Ndecreasedfrom90%to65%whenthewatertemperaturefellfrom10to0.4.Whenthewatertemperaturewasabove3,concentofNO2Nintheeffluentwaslowerthanthatintherawwater;afterthewatertemperaturewasbelow3,concentrationofNO2Nintheeffluentwashigherthanthatintherawwater.Thereappearedtheaccumulationphenomenoninsidethereactorthatthelowerthewatertemperature,thehigherthecontentofNO2Nintheeffluent.Keywordsbio-ceramicreactorbiologicalpretreatmentmicropollutedrawwaterNH4+NNO2N.[13],,80%.,,,2,.,,.11.1,,200mm,4m,2m,2~5mm.,,,.56m/h,20min;520030303(9550610400-05-03)*66454m/h.30min.1Ó1.1.2,DOpH,[4].220018,,90%~99%,.2001110.4~104.0mg/L,0.5~1.4mg/L,NO2N14~112µg/L.,NO2N,0,NO2N112µg/L,,NO2N.2.11,1.1,5~10,80%~90%;5,65%~80%;112,2,65%~75%.1Fig.1RemovalofNH4+Natlowtemperatureinthebio-ceramicfilter,,0,65%.,0.5mg/L,.2.2,NO2N,NO2NNO3N.,NO2N[5].[13],10,NO2N90%,NO2N.,,NO2N,2NO2N.2NO2NFig.2NO2Nintheinfluentandtheeffluentofthebio-ceramicfilteratlowtemperature2,3~10,NO2NNO2N,3,NO2NNO2N,NO2N.,NO2N,1.0~1.4mg/L,0.4,NO2N300µg/L.01020304050600.00.51.01.52.02.50204060801005~104~0.410~5(mg/L)(%)0612182430364248540501001502002503003503~100.4~310~3NO2N(μg/L)64623[6,7],NO2N;NO2N,NO2NCl2NO3N,,NO2N.NO2N[810],,,,NO2N.,4mg/L,,.,NO2N.,NO2NNO3N,,NO2N,.3NO2NFig.3NO2Nalongthedirectionofthewaterflowinthebio-ceramicfilteratdifferenttemperature3,NO2N,30.3,5,NO2N,20.5,NO2N.,NO2N40cm,NO2N.1[1,11].1,,(Nitrosomonas)(Nitrosoc-occus)2~40,(Nitrosovibrio)5,5~40.,.1Table1Temperaturerangewherenitrobacteriacansurvive()5~3015~302~402~4015~305~305~4020~3025~3015~301,.,,NO3N,NO2NNO2NNO3N,NO2N.NH4+N,NO2N40cm.,NH4+N,40cmNO2N,05010015020005010015020025030010520.5NO2N(mg/L)(cm)6647,,NO2NNO3NNH4+NNO2N,NO2N.33.1.1:1,5~10,6m/h,80%~90%;5,4m/h,65%~80%.3.2,,065%,0.5mg/L.3.33,NO2NNO2N.3,NO2NNO2N,NO2N.,NO2N,NH4+N1.0~1.4mg/L,0.5,NO2N300µg/L.[1],.[M].:,1999.133142.[2].[J].,1999,15(11):6668.[3],,,.[J].,1998,19(11):6062.[4].[M].3.:,1989.[5].[M].:,1993.[6]PackhamRF.Publichealthandregularaspectsofinorganicnitrogencompoundsindrinkingwater[J].WaterSupply,1992,10(3):16.[7]CsanadyM.Nitriteformationandbacteriologicaldeteriorationofwaterqualityindistributionnetworks[J].WaterSupply,1992,10(3):3943.[8]PackhamRF.Publichealthandregularaspectsofinorganicnitrogencompoundsindrinkingwater[J].WaterSupply,1992,10(3):16.[9]RandallCW,DavidButh.Nitritebuild-upinactivatedsludgeresultingfromcombinedtemperatureandtoxicityeffects[J].JournalWPCF,1984,56(9):10451049.[10]GarridoJM,vanBenthumWAJ,vanLoosdrechtMCM,etal.Influenceofdissolvedoxygenconcentrationonnitriteaccum-ulationinabiofilmairliftsuspensionreactor[J].Biotechnol.Bioeng.,1997,53(2):168178.[11],,,.[J].,2002,18(8):4445.[12],.[M].:,2000.(1974),,,,.8.98.,:,.20030912