UASB处理低浓度城市生活污水的中试试验雒文生

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　[e-mail]2005-12-20(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