沸石滤料曝气生物滤池的挂膜启动研究李小琴

33920089ENVIRONMENTALSCIENCEANDMANAGEMENTVol.33No.9Sep.2008:2008-05-26:B604:(1984-),,,,:。:1673-1212(2008)09-0091-03李小琴,汪永辉,周建冬(,201620)　:采用沸石滤料曝气生物滤池(ZBAF),对微污染水源水预处理的挂膜启动进行研究。试验结果表明:挂膜过程中CODMn和氨氮的去除率提高不同步,好氧异养菌的增殖速度较快,硝化菌增殖较慢;ZBAF对氨氮具有很好的去除效果,去除率高达90%以上。启动初期对氨氮的去除以离子交换作用为主,末期以硝化作用为主,CODMn的去除一直处于不稳定状态,故对于ZBAF应以氨氮的硝化去除率达到稳定作为挂膜成熟的标志,而不以氨氮总去除率及CODMn去除率作为标志。:沸石;曝气生物滤池;微污染水源水;硝化;启动:X703.1:ATheResearchoftheFilmFormationandStart-upofZeoliteBiologicalAeratedFilterLiXiaoqin,WangYonghui,ZhouJiandong(DonghuaUniversityCollegeofEnvironmentalScienceEngineering,Shanghai201620,China)Abstract:Zeolitebiologicalaeratedfilterwasusedinthetestofthepre-treatmentofmicro-pollutedsourcewater,andthestart-upwasstudied.Theresultsshowedthat:theremovalofCODMndidntkeepinpacewiththatofNH+4-Nintheprocessoffilmformation.Whiletheincreasingrateoftheaerobicheterotrophicbacteriaishigherthanthatoftheautotrophicnitrobacteria;ZBAFhadahighremovalefficiencyofNH+4-N,andtheremovalratewentuptoover90%.Ionexchangewasthemajorcontrib-utortoammonia-nitrogenremovalatthebeginning,andnitrificationreactionplayedthemainroleintheend,whiletheremovalofCODMncouldntkeepstable,sotheendofthestart-upphasewasbasicallysignaledbynitrificationattainedstablestatenotbythetotalammoniaremovalrateandtheremovalrateofCODMn.Keywords:zeolite;biologicalaeratedfilters(BAF);micro-pollutedsourcewater;nitrification;start-up,、、[1]。、、,,,[2]。,,,[3]。ZBAF,,。1　1.1　1。ZBAF80mm,1.6m,1mm～3mm,0.8m。、,,,。1.2　。(),,。24h,4d。0.5m/h,1m/h。(0.5～1):1,16℃～22℃。CODMn,(60%)。·91·33920089·Vol.33No.9Sep.20081　2　,、NH+4-N、、、,、[4]。,10mg/L,(NH+4-N)3.3mg/L[5]。、、、、,1。1　ρ(CODMn)/(mg/L)ρ(NH+4-N)/(mg/L)pH/℃7.3～9.51.58～3.446.45～7.8514～223　,、、:(1)CODMn:。(2)NH+4-N:,(TU-1900)。4　2008411,426,2。:(5d);,0.5m/h(5d);1m/h(5d)。4.1　2。,,2.78mg/L,0.25mg/L,90.7%。,。3,,,,5,,(NH+4+NaZNH4Z+Na+),,,,,,,,,60%。2　4.2　CODMn3CODMn,CODMn,7.32mg/L,4.58mg/L,37.5%。,,、CODMn[6]。,CODMn,,CODMn,,。CODMn,CODMn。·92·33920089·Vol.33No.9Sep.20083　COD4.3　NH+4-N,NH+4-N:。:NH+4+NaZNH4Z+Na+(4.3.1):2NH+4+3O2※2NO-2+2H2O+4H+()(4.3.2)2NO-2+O2※2NO-3()(4.3.3)。,NH+4。NH+4NO-3。(4.3.4):ZNH+4=a[Na+][NH+4]+a(4.3.4),ZNH+4———NH+4;a———;[Na+]———Na+;[NH+4]———NH+4。(4.3.4),,NH+4。NH+4。NH+4NH+4,Na+,NH+4,,;,,,。,。NH+4,,NH+4;NH+4,,NH+4。,ZBAF,,,NH+4,,,,。5　(1)ZBAF,。60%,,。(2),ZBAFCODMn,,30%,CODMn,CODMn。(3),,,,,。:[1]RozicM,Cerjan-StefanovicS,KurajicaS,etal.Am-moniacalnitrogenremovalfromwaterbytreatmentwithclayandzeolites[J].WaterResearch,2000,34(14):3675-3681.[2]GisvoldB.,OdegaardH.,FollesdalM.Enhancedre-movalofammoniumbycombinednitrification/adsorptioninex-pandedclayaggregatefilters.Wat.Sci[J].Technol.,1999,41(9):409-416.[3]Lahav0,GreenM.Ammoniumremovalusingionex-changeandbiologicalregeneration[J].WaterResearch,1998,32(7):2019-2028.[4]王占生,刘文君.微污染水源饮用水处理[M].北京:中国建筑工业出版社,1999:77-162.[5]JiangJ.Q.EnhancedCoagulanthanishyonRemovalofColourNOM[J].Environ,1996,11(9):937-950.[6]姜文来.中国21世纪水资源安全对策研究[J].水科学进展,2001(3):66-68.·93·