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UASB处理低浓度城市生活污水的中试试验*雒文生(,430072) 张 青(,250014)蔡振华(,250014) 研究1.2m3厌氧反应器(UASB),在自然温度(水温32~5℃)下,处理CODCr浓度为200mgL左右的低浓度生活污水。实验采用颗粒污泥接种二次启动法。水处理系统在水温32~5℃范围内运行6个月的时间,UASB反应器在上升流速为1.4~1.7mh,水力停留时间(HRT)为3.0~2.5h,CODCr有机污泥负荷(SLR)为0.06~0.13kg(kg·d)时,去除效率比较稳定,CODCr去除率达40%~80%。 UASB 城市污水 *948(T200143)0 、。、,[1]。UASB。UASB(Up-flowAnaerobicSludgeBlanket,)[2]、、,、[3,4]。UASB,(SLR)UASB[5]。UASB1.06~1.8kgm3,,UASB()。:,;,,。,,20℃,5d,。1 、1.1 试验用水,CODCr200mgL,CODCr、N、P100∶10∶1;400~500mgL,CODCr、N、P200∶10∶1。,UASB(32~5℃)。1。1 mgL(pH)pH℃CODCrTNTPSS(CaO)6.7~7.25~32100~50015~401.5~2.530~60210~3201.2 试验工艺流程1,UASB,6m3d。,(CODCr)、TN、TPSS。1 1.3 试验装置UASB0.5m,6m,0.98m3,,0.35m30.38m3,,0.25m3(2)。UASB,,(5~32℃)。1.4 系统启动,UASB。CODCr(SLR)0.06kg(kg·d),CODCr(OLR)2.4kg(m3·d)20℃。1~4dUASBSS,。5dSS,,UASB。89 200610245DOI:10.13205/j.hjgc.2006.05.0322 UASBUASB,0.5~2.0mm,1.5~1.8mm。100d。1.5 系统运行参数1.2m3UASB5~32℃,CODCr100~300mgL300~600mgL,(2),。2 HRTh(m·h-1)SLR(kg·kg-1·d-1)OLR(kg·m-3·d-1)1.4~7.00.7~2.80.025~0.100.5~3.52 2.1 SLR对UASB反应器内CODCr去除率的影响SLR0.06~0.13kg(kg·d),CODCr,CODCr,。3。3 SLRCODCrSLR0.05kg(kg·d),CODCr100mgL,UASBCODCr,,。,,SLR0.06~0.13kg(kg·d)。2.2 上升流速对UASB反应器CODCr去除率的影响4,1.4~1.7mh,,5.2、4.2m。2mh,5.2m4.2m,。1.3mh,5.2m4.2m,1.4~1.7mhCODCr8%。1.4~1.7mh。TN、TP,。UASB。4 UASBCODCr3 ,UASB1.4~1.7mh,SLR0.05~0.08kg(kg·d),HRT2.5~3.0h,。,UASB,UASB:0.5m,5m。4 (1),SLR。SLR0.06kg(kg·d),20℃UASB,5d、。(2)UASBSLR0.06~0.13kg(kg·d),1.4~1.7mh。HRT2.5~3h,CODCr。5~32℃,CODCr40%~80%。SLRSLR———0.2~0.6kg(kg·d)[6-8]。SLR0.05kg(kg·d),OLR0.6kg(m3·d),CODCr100mgL,。UASBCODCr100mgL。(93)90 200610245,。,,,,,。,Fe2+,,,PAC13。,、。,0.310.42,。6 (1),。,,。(2),90%,。,。(3),,85%,,。[1] ,,..,2004,24():256-258.[2] ,,..,1999,17(4):23-26. 266071 E-mail jiji760504@126.com2005-12-20(90)[1] Jewell,W.J.Anaerobicsewagetreatment.EnvironmentalScienceandTechnology,1987,21(1):14-21.[2] Lettinga,G.,vanNeelsen,etal.Useoftheupflowblanket(USB)reactorconceptforbiologicalwastewatertreatment,especiallyforanaerobictreatment.BiotechnologyandBioengineering,1980,22:699-734.[3] Lettinga,G.andVinken,J.N.Feasibilityoftheupflowanaerobicsludgeblanket(UASB)processforthetreatmentoflow-strengthwasters.35thPurdueIndustrialWasterConferenceProceedings.1980:625-634.[4] Lettinga,G.,Roersma,R.etal.AnaerobictreatmentofrawdomesticsewageatambienttemperaturesusingagranularbedUASBreactor.BiotechnologyandBioengineering.1983,25:1701-1723.[5] LucasSeghezzo,Grietjezeeman,etal.Areview:theanaerobictreatmentofsewageUSABandEGSBreactors.BioresourceTechnology.1998,65,175-190.[6] Lettinga,G.Laboratoryworkmanual.in:1stInt.CourseonAnaerobicandLowcostTreatmentofWastesandWastewater.TheNetherlands:IACandWAU,1994.[7] M.M.Ghangrekar,S.R.Asolekaretal.ExperiencewithUASBReactorStart-upunderDifferentOperatingConditions.WaterScienceandTechnology.1996,34(5-6):421-438.[8] GarlosAugustoL.,Chernicharo.etal.DevelopmentandEvaluationofaPartitionedUpflowAnaerobicSludgeBlanket(UASB)ReactorfortheTreatmentofDomesticSewageFROMSmallVillages.WaterScienceandTechnology.1999,40(8):107-113. 430072 2006-03-06《》 82-6493 200610245ANEXAMPLEOFTREATINGTHECHICKENCLAW-PROCESSINGWASTEWATERBYUASB-BIOLOGICALCONTACTOXIDATIONTECHNIQUEYangYifeng WangShunfa WuXiaoetal(82)……Abstract Thewastewaterfromprocessingchickenclawcontainslotsofgreaseandsuspendedmatter.Theprocessofoilseparation-UASB-biologicalcontactoxidation-flocculationisusedtotreatchickenclaw-processingwastewater,andtheresultshowsclearlythatthetechniqueisfeasiblandprossedwatercanbedrainedoffsafely.Keywords wastewaterofprocessingchickenclaw,UASBtechnologyandbiologicalcontactoxidationPILOT-SCALETESTOFUSINGFABRICFILLERTOREFORMTRADITIONALACTIVATEDSLUDGEPROCESSLiuHongtao ChenGuihong YeJipengetal(84)………………………………………………Abstract Hydrolysis-aerobicbiologicaltreatmentprocessbasedonfabricfillersisadoptedtotreatcitysewageinthepilottest.Thedesignfeatures,parameterandrunningeffectofthetechnologyaredescribed.Theresultsshowthatthetechnologyneedslowerinvestmentandrunningcost,theeffectiscontinuouslystable.Whenthewastewaterflowis1.4×104m3d,thehydraulicretentiontimeis1.89h,thegaswaterratioreducestohalf,BOD5,CODCrandSSoftheeffluentmeetthefirst-orderofthenationaldischargestandard.TheremovaleffectofPandNbythisprocessisgreatlysuperiortothatofthetraditionalactivatedsludgeprocess,andtheaverageremovalefficiencyofTNandTPismorethan50%and70%respectively.Thetechnologyissuitableforreformingmiddleorsmallmunicipalwastewatertreatmentplants.Keywords fabricfiller,hydrolysisandacidification,aerobicbiologicalcontractoxidization,runningeffectandnitrogen&phosphorusremovalTECHNICALREFORMOFDISCHARGINGOIL-SMELTINGCOMPOSITEWASTEWATERUPTOTHESTANDARDGaoJian(86)…………………………………………………………………………………………………Abstract Thefactorsinfluencingthequalityofeffluentwerefoundout,andreformingschemewasproposedforthesystemofaddingchemicals,releaserandbiochemicalsystem,bymeansofallcourseanalysisandtestingoftheproceduresofoil-smeltingcompositewastewatertreatment.Theresultsafterthereformshowedthatthedegradabilityoffloatationandthebiochemicalsystemwasimproved,thequalityoftheeffluentwasraisedremarkably,whichcouldbed
本文标题:UASB处理低浓度城市生活污水的中试试验雒文生
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