UASB常温预处理市政污水的试验研究王怡

40　320086西安建筑科技大学学报()J.Xi′anUniv.ofArch.&Tech.(NaturalScienceEdition)Vol.40　No.3Jun.2008UASB王　怡1,2,张引中1,彭党聪1(1.,710055;2.(),710055)　:UASB.6:20℃,6.4h、5.0h,UASB,.,SS,283mg/L,UASBSS84%.SS48%SCOD,SCOD:TCOD0.300.71,.:;UASB;;:X703　　　　:A　　　　:1006-7930(2008)03-0393-05　.＊(BNR),.:-C/P15;C/N5.,,.,(SCOD),,、[1].,.,,,.,McCue[1].UASB,2080.,UASB()[2-5],,HRT6～10h,3.0kgCOD·m-3·d-1,UASBCOD65%～80%,[6-7].,,UASB[8].UASB,UASB,UASB.1　材料与方法1.1　1,.5cm、90cm,1.875L;10cm、10cm5cm、10cm、5cm,1.47L.5.,45°.,.＊:2007-11-20　　:2008-04-22:(50478047);(2006E211):　(1971-),,,,,.DOI:10.15986/j.1006-7930.2008.03.003图1　试验装置图Fig.1　Schematicdiagramofexperimentalsetup1.2　,1.　　　　　　　　　1　　　　　　Table1　CharacteristicsofwastewaterontestParameterMaximumMinimumAverageTCOD/mg·L-1662113341SCOD/mg·L-127832113NH4+-N/mg·L-178.130.652.1TKN/mg·L-1113.962.383.7TP/mg·L-111.55.58.9SS/mg·L-1574102283pH8.57.78.11.3　SS、MLSS、MLVSS;COD;TKN-、TP-,NH4+-N,PO43--P.[9].2　结果与讨论2.1　(1)2UASB.2(a),UASB,TKNTP,TKN7.18mg/L,TKN8%;TP2.96mg/L,TP25%.2(b),,7.05mg/L(15%),PO3-4-P1.84mg/L(46%).,TKN7.18mg/L,7.05mg/L,TKN98.2%,TP2.96mg/L,1.84mg/L,TP62.2%.,UASB,,.图2　UASB反应器进出水氮磷的历时变化Fig.2　TimecourseofnitrogenandphosphorusconcentrationintheinfluentandeffluentoftheUASBreactor394　　　　　　　　　　　　　　　()　　　　　　　　40(2)COD3UASBCOD.3,UASB,TCOD(113～662mg/L),341mg/L,TCOD,154mg/L,52.8%;SCOD96mg/L,SCOD,116mg/L,20%.,UASB,SCOD/TCOD.4UASB,SCOD/TCOD.,SCOD/TCOD0.30,,SCOD/TCOD0.71.,UASB,TCOD52.8%,SCOD20%,SCOD/TCOD0.300.71.　图3　UASB反应器进出水COD浓度历时变化　　　　图4　预处理前后SCOD/TCOD比值的历时变化Fig3　TimecourseofCODconcentrationintheinfluent　　　　Fig4　RatioofSCOD/TCODinthewastewaterbefore　　　　andeffluentoftheUASBreactor　　　　　　　　　　　　　　　andafterthepretreatment(3)SS①SS5UASBSS.5,UASB,SS(102～574mg/L),283mg/L,SS100mg/L,41mg/L,84%.,SSUASB,84%.②UASBUASB(SS),41d(21～62d),UASB.21～62dSS,.6UASB(SS).6,UASBSS,26%UASB,26%UASBMLSS,48%.,UASB,.2.2　UASB,UASB().,,.,,,.,.3953　　　　　　　:UASB　图5　UASB反应器进出水SS浓度历时变化　图6　进入UASB反应器的SS的转化途径及相对比例　Fig5　TimecourseofSSconcentrationintheinfluent　　　　　　Fig6　Conversionpathwayandproportionof　　　　　　　andeffluentofUASBreactor　　　　　　　　　　　　　　　SSenteringUASBreactor3　结　论UASB,UASB,6:UASB,SCOD/TCOD,SS100mg/L,.UASB,26%,26%,48%,.,、UASB,PO43--P46%,15%,,,.　References[1]　McCueT,ShahR,VassilievI,etal.Evaluationofinfluentprefermentationasaunitprocessuponbiologicalnutri-entremoval[J].WaterScienceandTechnology,2003,47(11):9-15.[2]　RodríguezJA,Pe～naMR,ManziV.Applicationofaninnovativemethodologytoimprovethestarting-upofUASBreactorstreatingdomesticsewage[J].WaterScienceandTechnology,2001,44(4):295-303.[3]　LeitaoRC,Silva-FilhoJA,SandersW,etal.TheeffectofoperationalconditionsontheperformanceofUASBre-actorsfordomesticwastewatertreatment[J].WaterScienceandTechnology,2005,52(1/2):299-305.[4]　ElmitwalliT,ZeemanGr,LettingaG.Anaerobictreatmentofdomesticsewageatlowtemperature[J].WaterSci-enceandTechnology,2001,44(4):33-40.[5]　ForestiE.Anaerobictreatmentofdomesticsewage:establishedtechnologiesandperspectives[J].WaterScienceandTechnology,2002,45(10):181-186.[6]　Chernicharo1CAL,NascimentoMCP.Feasibilityofapilot-scaleUASB/tricklingfiltersystemfordomesticsew-agetreatment[J].WaterScienceandTechnology,2001,44(4):221-228.[7]　TorresP,ForestiE.DomesticsewagetreatmentinapilotsystemcomposedofUASBandSBRreactors[J].WaterScienceandTechnology,2001,44(4):247-253.[8]　GoncalvesRF,VeronezFA,KisslingCMS,etal.UsingaUASBreactorforthickeninganddigestionofdis-chargedsludgefromsubmergedaeratedbiofilters[J].WaterScienceandTechnology,2002,45(10):299-304.[9]　《》.[M].4.:,2002.StateEnvironmentalProtectionAdministrationofChina.MonitoringandAnalysisMethodofWaterandWastewater[M].4thEdition.Beijing:ChinaEnvironmentalSciencePress,2002.396　　　　　　　　　　　　　　　()　　　　　　　　40StudyonthepretreatmentofmunicipalwastewaterbyUASBreactoratambienttemperatureWANGYi1,2,ZHANGYin-zhong1,PENGDang-cong1(1.SchoolofEnvir.andMuni.Eng.,Xi′anUniv.ofArch.&Tech.,Xi′an710055,China;2.StateKeyLaboratoryofArchitetureSeienceandTechnologyinWestChina(XAUAT),Xi′an710055,China)Abstract:TheaimofthisresearchconcernstheefficiencyofUASBusingasapretreatmentreactorformunicipalwastewatertreatmentatambienttemperature.The3.3LUASBreactorwasoperatedatabout20°CataHRTof6.4hinthereactingzoneand5.0hinthesettlingzone.Theresultofa6-monthcontinuousexperimentdemonstratedthatorganicnitrogenandphosphoruswerehydrolyzedintoammonianitrogenandortho-phosphatemostly,withverylittleusedasnu-trientingredientbymicroorganismsduringhydrolyzation.Ontheotherhand,whenthesuspendedsolidconcentrationininfluenthadalargefluctuationwithaveragevalue283mg/L,aSSremovalabove84%averagelywasachieved.AmongtheremovedSS,48%wasdissolvedmaterials,whichmadetheratioofSCODandTCODincreasefrom0.30to0.71.Allthismaybenefitasuccessfulbiologicalnutrientremoval.Keywords:ambienttemperaturecondition;UASBreactor;pretreatment,municipalwastewaterBiography:WANGYi,Ph.D.,AssociateProfessor,Xi′an710055,P.R.China,Tel:[phone],E-mail:[e-mail](上接第392页)StudyonrheologicalcharacterisriesoftheactivatedsludgeinwastewatertreatmenttechnologyZHANGXin-yu,YUANYi-xing,WUYue-bin(SchoolofMunicipalandEnvironmentalEngineeri