您好,欢迎访问三七文档
当前位置:首页 > 行业资料 > 其它行业文档 > 高溶解氧环境下好氧亚硝化颗粒污泥短程硝化特性研究傅金祥
INDUSTRIALWATER&WASTEWATERVol.40No.5Oct.,2009,,,(,110168)、、、、,[1-3]。,、[4-7],,,SHARON[8]、-[9-10]。,:①,,;②,,:(05-K2-11);(20062004):2009-06-09:。SBR,、,,。:12d97%、70%,;。。:;;;:X703.1:A:%1009-2455(2009)05-0028-04Short-cutnitrificationcharacteristicofaerobicshort-cutnitrificationgranularsludgeunderhighdissolvedoxygenconditionFUJin-xiang,WANGHai-biao,TANGYu-lan,WANGYang(UrbanandEnvironmentalEngineeringCollege,ShenyangJianzhuuniversity,Shenyang110168,China)Abstract:Theformationandshort-cutnitrificationcharacteristicofaerobicshort-cutnitrificationgranularsludgeunderhighdissolvedoxygenwasstudied.Astheseedsludge,aerobicgranularsludgeandnitrifyingactivesludgeweredomesticatedandcultivatedinSBRunderslightalkalineandhighdissolvedoxygenconditions,andthentheformationmechanismandtheaccumulationabilityoftheaerobicshort-cutnitrificationgranularsludgeonnitritewereanalyzed.Theresultofthestudyshowedthat:theaerobicshort-cutnitrificationgranularsludgewithaverageammoniaremovalrateof97%andhighestshort-cutnitrificationrateof70%wasformedin12d,andtheSBRcouldrunstably;themassconcentrationofdissolvedoxygenhadlittleeffectonthenitrosationrateofaerobicshort-cutnitrificationgranular.Itwasindicatedthat,aerobicshort-cutnitrificationgranularsludgewithhighnitriteaccumulationratecouldbeformedrapidlybythesaidmethod.Keywords:aerobicshort-cutnitrificationgranularsludge;short-cutnitrification;highdissolvedoxygen;nitriteaccumulation·28·。,。。,、。11.1SBR,100cm,9cm,5L,1/3。,,(30±1)℃。、、3。,。180min,3min,5min,5min,167min。0.15~0.20m3/h,DO5mg/L。pH=7.5~8.0。1.2,,(ρ(MLSS)=2000mg/L),1L,SVI61mL/g。,,,,1mL/L。1。1.3:;:;:N-(1-)-;COD:;pH:;DO:Sension8DissolvedOxygenDiameter;SV、SVI、MLSS[11]。,1.0、0.8、0.63、0.4、0.25mm。:Density=/(-)[12]。22.1(NOB)(AOB)[13]。,(130mg/L)、(5mg/L)、((30±1)℃)、(pH=7.5~8.0),NOB,AOB,AOB。12159mg/L,7mg/L,95.6%。197%。(MLSS),,0.25mm,0.8、0.63、0.4、0.25mm,1。,。,2。2,SVI、,5,。,1Tab.1Compositionofinfluentwaterρ()/(mg·L-1)ρ(NH4Cl)/(mg·L-1)ρ(KH2PO4)/(mg·L-1)ρ(CaCl2)/(mg·L-1)50013025300ρ(FeCl2)/(mg·L-1)ρ(MgSO4·7H2O)/(mg·L-1)125125/(mL·L-1)1:(g/L)EDTA15.00,ZnSO4·7H2O0.43,CuSO4·5H2O0.25,MnCl2·4H2O0.99,NaMoO4·2H2O0.228,NiCl20.199,CoCl20.05,NaSeO3·5H2O0.21,H3BO30.05。,,,:·29·INDUSTRIALWATER&WASTEWATERVol.40No.5Oct.,2009,,2。2.2150mg/L,110DO4~5mg/L,97%,5mg/L;110~150DO1mg/L,DO,110,147mg/L,94mg/L,36.05%;150DO,;152,DO5mg/L,8mg/L,94%。3。3,DO,DO。,DO。,,、,8,4。4DO,DO,,DO,50%,70%,DO。,AOB,NOB,NOBAOB[14]。NOBDO,DO。2Tab.2PhysicalCharacteristicsofGranularSludgeSV/%SVI/(mL·g-1)/(kg·m-3)ρ(MLSS)/(mg·L-1)2022.75165.3521982322.63169.37101622Fig.2Appearanceofshort-cutnitrificationgranularsludgeandseedgranularsludge(a)(b)·30·,,5。,3mg/L。,74mg/L,,。NOBAOB,DO,,NOBAOBNOBAOB。2.3,,。COD400mg/L,1h89%,COD50mg/L,65%,160min98%,3mg/L。,,,,。。3(1),130mg/L、((30±1)℃)、,AOB(12d)95%、70%,。(2)SBR,97%,BOD89%。SBR,BOD。(3)SBR,。:[1]ChenYao,JiangWenju,LiangDavidTee,etal.Aerobicgranu-lationunderthecombinedhydraulicandloadingselectionpressures[J].BioresourceTechnology,2008,99(16):7444-7449.[2],,,.[J].,2007,23(5):85-89.[3],,,.SBR[J].,2007,28(9):1987-1992.[4],,.[J].,2007,30(6):27-29.[5]LiYong,LiuYu.Diffusionofsubstrateandoxygeninaerobicgranule[J].Biochemicalengineeringjournal,2005,27(1):45-52.[6],.[J].,2007,38(1):14-16.[7],,,.[J].,2008,39(4):13-19.[8]HellingaC,SchellenAAJC,MulderJW,etal.TheSharon-process:aninnovativemethodfornitrogenremovalfromammoniumrichwastewater[J].WatSciTech,1998,37(9):135-142.[9]VanDongenU,JettenMSM,VanLoosdrechtMCM.TheSharon-anammoxprocessforthetreatmentofammoniumrichwastewater[J].WatSciTech,2001,44(1):153-160.[10],,,.-[J].,2005,36(1):5-8.[11].(3)[M].:,1989.[12]BeunJJ,HendriksA,VanLoosdrechtMCM,etal.Aerobicgranulationinasequencingbatchreactor[J].WatRes,1999,33(22):83-90.[13]AnthonisenAC.Inhibitionofnitrificationbyammoniaandnitrousacid[J].JWPCF,1976,48(5):835-852.[14],,,.[J].,2007,28(12):2710-2715.:(1955-),,,,,,,()fujinxiang@sina.com;(1985-),,,,,,()whaibiao@qq.com。,,,:·31·
本文标题:高溶解氧环境下好氧亚硝化颗粒污泥短程硝化特性研究傅金祥
链接地址:https://www.777doc.com/doc-6563734 .html