固定化微生物脱氮技术杨麒

杨　麒　李小明　曾光明　谢　珊　刘精今(,410082)　　,、、、,。　　　BiodenitrificationtechnologyusingimmobilizedmicroorganismsYangQi　LiXiaoming　ZengGuangming　XieShan　LiuJingjing(DepartmentofEnvironmentalScienceandEngineering,HunanUniversity,Changsha410082)Abstract　Inwastewaterbiodenitrification,theimmobilizedmicroorganismstechnologybycarrierimmo-bilizingandgranulationcanprovideeffectivemethodsinincreasingbiodenitrificationvelocity,savingcarbonsourcesanddecreasingupperaeratingandrealizesinglestagebiodenitrification.Keywords　immobilizedmicroorganisms;granularsludge;singlestagebiodenitrification1　,4:(1),,,,,,,,;(2),,;(3),,、;(4)C/N,,,。2　2060(immobilizedmicroorganisms)、、、,、、、、、。2080,,,11300m3/d[1],,。,,/,(simultaneousnitrifica-tionanddenitrification,SND)。,,,25%40%,。,,7—8[2]。2.1　,,/。310Vol.3,No.10200210TechniquesandEquipmentforEnvironmentalPollutionControlOct.2002,,,,。:,6—7,0.5kgN/m3·d;3,1.5kgN/m3·d[3]。,,。1　UemotoSaiki[4],,、、,,(PVA)、、,。1,、,,,,。/:NH33.4,NH3;0.13kgN/m3·d,PSB(permeable-supportbiofilm)2.6;,2—6mg/L[5—7]。、,,、。2.2　、,,。———,,,、、。,,。,,,“”,、[8]。(UASB),,、、[9,10]。,,(10%—20%),:(1)。Thiosphaera、Psedonmonas、Hy-phomicrobiumXNOX-N。,,。(2)。,,,,,。,。,,(100μm)。[11—17],5910　:SND。Morgenroth,(SBR),2—3mm,4g/L,。,,。SBR,DO0.7—1.0mg/L,1.5—2.0kgCOD/m3·d0.15—0.18kgNH3-N/m3·d,COD、NH3-NTN95%、95%60%。,,、、,,,。3　　,、、,,/,,。,、、,。[1]TanakaK,SuminaT,NakamuraHetal.Applicationofni-trificationbycellsimmobilizedinpolyethyleneglycol.Prog.Biotechnol.,1996,11(immobilizedcells):622—632[2],,.().:,2000:45[3]..,1987,22(2):27—30[4]UemotoH,SaikiH.Behaviorofimmobilizednitrosomonaseuropaeaandparacoccusdenitrificansintubulargelforni-trogenremovalinwastewater.Prog.Biotechnol.,1996,11(immobilizedcells):695—701[5],,..,2000,13(2):17—19[6],,,..,2000,18(5):17—19[7]KokufutaE,ShimohashiM,etal.Simultaneouslyoccurringnitrificationanddenitrificationunderoxygengradientbypolyelectrolytecomplex-coimmo-bilizedNitrosomonaseu-ropaeaandParacoccusdenitrificanscells.Biotechnol.&Bioeng.,1988,31(4):382—384[8],,.UASB.,1996,12(5):16—19[9]LettingaG,etal.UseoftheUASBRconceptforbiologicalWWT,especiallyforanaerobictreatment.Biotechnol.&Bioeng.,1980,22:699—734[10]DeBeerD,etal.Microelectrodemeasurementsinnitrify-ingaggregates.Appl.Env.Microbiol.,1993,59:573—579[11]MorgenrothE,etal.Aerobicgranulationinasequencingbatchreactor.Wat.Res.,1997,31(12):3191—3194[12]BeunJJ,etal.Aerobicgranulationinasequencingbatchreactor.Wat.Res.,1999,33(10):2283—2290[13]BeunJJ,etal.Aerobicgranulation.Wat.Sci.Tech.,2000,41(4—5):41—48[14]PengDC,etal.Aerobicgranulationsludge———acasere-port.Wat.Res.,1999,33(3):890—893[15],,,.SBR.,2001,21(2):87—90[16],,,,.SBR.,2001,21(5):577—581[17]..,2002,18(2):26—28(责任编辑:郑晓梅)603