常规运行模式下循环式活性污泥工艺除磷性能的研究王少坡

:,,1975,,,。＊(No.50808128);(No.2008ZX07314);(No.20090460182);(No.10JCYBJC05300)。常规运行模式下循环式活性污泥工艺除磷性能的研究＊王少坡1,2,3　刘艳辉1,2,3　于静洁1,2,3　张　磊1,2,3　范志云1,2,3　孙力平1,2,3(1.,300384;2.,300384;3.,300384)　　　(CAST),、,CAST,。,,1.9mg/L,62%;,81.1%。　　　　　StudyontheperformanceofCASTprocessforphosphateremovalunderconventionaloperationmode　WANGShao-po1,2,3,LIUYanhui1,2,3,YUJingjie1,2,3,ZHANGLei1,2,3,FANZhiyun1,2,3,SUNLiping1,2,3.(1.DepartmentofEnvironmentalandMunicipalEngineering,TianjinInstituteofUrbanConstruction,Tianjin300384;2.TianjinKeyLaboratoryofWaterQualityScienceandTechnology,Tianjin300384;3.JointLaboratoryofWaterQualityScienceandTechnology,Tianjin300384)Abstract:　Thecyclicactivatedsludgetechnology(CAST)processwasoperatedundertheconventionalmodetoinvestigateitsperformanceforphosphateremoval.Thevariationofphosphateconcentrationinbiologicselectorandreactionzonewereexaminedinthetypicalcycle.Inaddition,thepathwayofphosphorousremovalanditslimitingfactorswereanalyzed,basedonwhich,theproportionofdenitrifyingphosphateaccumulatingorganisms(DNPAOs)inbiomasswasmeasured.TheresultsshowedthattheaveragephosphateconcentrationineffluentofstableCASTsystemwas1.9mg/L,givingthephosphateremovalrateof62%.Phosphorousremovalinthissystemwasaccom-plishedwiththecombinedactionofpolyphosphateaccumulationgorganisms(PAOs)andDNPAOs.Analysisdemon-stratedthatthepercentageofDNPAOsinphosphateaccumulatingorganismswas81.1%.Keywords:　cyclicactivatedsludgetechnology;biologicalphosphorousremoval;denitrifyingphosphateaccumu-latingbacteria　　(CAST),、、、、,,[1]。CAST,,[2]。,CAST。CAST、,。1　1.1　试验装置CAST,60cm×12cm×40cm。,52cm×12cm×40cm,8cm×12cm×40cm。()2h,1h,1h,4h,6,20%,,(SRT)13d。1。1.2　接种污泥·9·　DOI:10.15985/j.cnki.1001-3865.2010.11.0041　Fig.1　Theschematicdiagramofexperimentapparatus,,,。,CAST4000mg/L。1.3　试验用水,COD300mg/L,。50mg/L,5mg/L。NaHCO3,NaHCO3600mg/L,。0.2m3/h,DO2～3mg/L。1.4　试验内容(1),。(2),、。(3):2,2,,,[3]。(),(),。1.5　分析项目与方法DO340iDO(WTW);COD;;;MLSS、MLVSS[4]。2　2。2,,,1.9mg/L,62%,[5]CAST(82.2%)。,1。　　3CAST1。3,30min,,30min,45～120min,120min,。,:(1),,。;(2),,。,,[6]。2:,2　Fig.2　Variationofphosphateduringacclimationprocess·10·　　32　11　2010113　CAST1Fig.3　Variationofphosphateandnitrateinbiologicselector,。　　CAST,,,3。　　30～45min,,(4),,,,;45～120min,,,,2.47mg/L,;120～225min,,,1.56g/h;225～240min,,β-(PHB),,。4　Fig.4　Variationofphosphateandnitrateinreactionzone　　4,0～30min,30min,PHB[7],PHB,;30～90min,,1.2mg/L,3.5mg/L,,,PHB;90～120min,,PHB,,;120～180min,,。　　5。5,,,。,0.593mg/(g·h)(MLSS,),0.481mg/(g·h),81.1%。5　Fig.5　Theadsorptioncurvesofphosphor3　　(1)SRT13d,CAST4000mg/L,0.2m3/h,DO2～3mg/L,1.9mg/L,62%。(2),(下转第17页)·11·　,ODUM[20]。,POPs3m,5mDDT《》(GB15618—1995)(1mg/kg),DDT,,DDT。3　　(1)DDT,DDT,14271.90mg/kg,DDT。(2),DDT,C0/(C0+C)25%,21m,(20m),。(3)5mDDT,DDT,5mDDT。:[1]　,.、[J].,1996,4(2):33-34.[2]　SUTERGW,EFROYMSONRA,SAMPLEBE,etal.Eco-logicalriskassessmentforcontaminatedsites[M].Washing-ton,D.C.:LewisPublishers,2000.[3]　,,.———[J].,2005,37(3):230-235.[4]　.[M].:,1999.[5]　,,,.:Kriging[J].,2000,55(5):555-566.[6]　,,,.[J].,2003,14(10):1673-1676.[7]　,,.Kriging[J].,2001,20(4):446-452.[8]　,,,.Cr、Ni[J].,2003,23(4):436-445.[9]　,,,.[J].,2000,55(3):337-345.[10]　,,.[J].,2001,21(3):349-353.[11]　.[M].:,2004.[12]　,.[J].,2004,20(4):53-60.[13]　GRINGARTENE,DEUTSCHCV.Teacher'saide:vario-graminterpretationandmodeling[J].MathematicalGeology,2001,33(4):507-534.[14]　,,,.GIS[M].:,2004.[15]　McGRATHD,ZHANGCS,CARTONOT.GeostatisticalanalysesandhazardassessmentonsoilleadinSilverminesar-ea,Ireland[J].EnvironmentalPollution,2004,127(5):239-248.[16]　,,,.GIS[J].,2005,38(6):1204-1212.[17]　,,,.[J].,2006,15(3):361-365.[18]　CATERFL.Residuesanddegradationproductsoftechnicalheptachlorinvarioussoiltypes[J].Bull.Environ.Contam.Toxicol.,1970,5(4):422-423.[19]　VOERMANS.Residueofdieldrin,lindane,DDT,andparathi-oninalightsandysoilafterrepeatedapplicationthroughoutaperiodof15years[J].Agr.FoodChem.,1970,18(1):717-719.[20]　ODUMWE,WOODWELLGM,WURSTERCF.DDTresi-duesabsorbedfromorganicdetritusbyfiddlercrabs[J].Sci-ence,1969,164(3879):576-577.编辑:黄　苇　(:2010-08-17)(上接第11页),,(81.1%)。(3),,。:[1]　GORONSZYMC,,MUTSCHREK.(CAST)[J].,1992,12(6):4-9.[2]　,.CASS[J].,2003,19(2):34-35.[3]　KUBAT,VANLOOSDRECHTMCM.Phosphorusremovalfromwastewaterbyanaerobic-anoxicsequencingbatchreactor[J].Wat.Sci.Tech.,1993,27(5/6):241-252.[4]　《》.[M].4.:,2002.[5]　,.CAST[D].:,2007.[6]　.[M].:,2007.[7]　,,.、[J].,2003,19(1):33-36.编辑:贺锋萍　(:2010-04-20)·17·