UASBAFSBR工艺处理屠宰废水许玉东

··UASBAF-SBR许玉东　　　采用升流式厌氧污泥床过滤器(UASBAF)-序批式活性污泥法(SBR)工艺处理屠宰废水,处理出水达到《肉类加工工业水污染物排放标准》(GB13457-92)二级标准。工程实践表明该处理系统具有耐冲击负荷,运行管理简单,工程投资省、运行费用低等特点。　屠宰废水　升流式厌氧污泥床过滤器(UASBAF)　SBR0　,、[1]。、,。,(50～200m3/d),。、、。1　1.1　120、15,100m3/d,37。,1。1　　pHCOD/mg/LBOD/mg/LSS/mg/LNH3-N/mg/L/mg/L6.3～6.7681～2060253～915327～38723.1～65.528～381.2　1。1　1.3　1.3.1　(HRT24h,),,,HRT,1h,3m×3m,2.2m,。2,11,、。1.3.2　UASBAFUASBAF[2],UASBAF,4.5m×4.5m,6.5m,1.5m、、,2m,。。UASBAF,0.114～0.343kgCOD/(m3·h)。1.3.3　SBRSBR2,5m×5m,5m,。2,11,15∶1,。,。SBR48h:6h,7h,2h,0.5h,32.5h(SBR6～7h,24h)。1.4　:20.6。:0.43kW·h/m3,0.16/m3。:160m2。2　2.1　　Vol.27　No.6　200135　　　DOI:10.13789/j.cnki.wwe1964.2001.06.011、。(COD681～2060mg/L),UASBAF,UASBAF。,,UASBAF,UASBAF6～7h,2SBR,3～4h,SBR,10h,4h1h,。,UASBAF,,SBR、、、、,,,6hUASBAF,SBR,7h,2h,0.5h,SBR。SBR,UASBAF。3,,,。UASBAF,UASBAF、、、。2.2　,2。2　　　pHCOD/mg/LBOD/mg/LSS/mg/LNH3-N/mg/L/mg/L6.3～6.7681～2060253～915327～38723.1～65.528～38UASBAF6.6～6.7457～685204～378213～27924～61.423～27SBR8.2～8.487～10430.4～39.672～10811.1～15.710～15/%93.094.094.869.862.1GB13457-926～8.51206012025203　3.1　UASBAFUASBAFUASB,UASBAF。UASB,AF,UASB。,,,,UASB。3～4h,,UASBAF6h,。0.84m3/(m2·h),0.114～0.343kgCOD/(m3·h),(COD457～685mg/L,SS213～279mg/L),UASBAF。UASBAFCODBOD58.4%50.2%。,,UASBAF。3.2　SBR,,SBR,、、、,。SBR。SBR,,,。SBR、、,,。SBR,,、,,。SBR、、36　　　　Vol.27　No.6　2001WATER&WASTEWATERENGINEERINGVol.27No.6June2001arepresentedinthispaper.TreatmentofSlaughterhouseWastewaterUsingUASBAFandSBRReactorXuYudong(35)…………………………………Abstract:Acombinedupwardanaerobicsludgebedfilter(UASBAF)andsequencebatchreactor(SBR)processtechnologywasusedtotreatslaughterhousewastewater.Therunningresultsshowthatthequalityoftheeffluentcanmeettherequirementofgrade2intheMeat-PackingWastewaterDischargeStandardGB13457-92.Theengineeringpracticehasdemonstratedthatthistreatmentsystemhasadvantagesofhighresistancetoshockloading,easyoperationandlowcapitalinvestmentandoperationexpenses.PracticetoTreatHighConcentratedCN-ContainedWastewaterbyChlorineDioxideLiJinchengetal(37)…………………Abstract:ChlorineDioxidewasadoptedtotreatrawwastewatercontainedcyanidedischargedfrompharmaceuticalindustry.Incasewhenthecyanide(asCN-)levelofrawwastewaterwasinrangeof120～300mg/L,aremovalover95%hadbeenobtained.Duetoitsstableandreliableperformance,thisprocessiseasytooperateandmightbeanewwaytotreathighconcentratedwastewatercontainedcyanide.StudyonTreatmentofPolyacrylonitrileFiberWastewaterbyCoagulation-Anaerobic-Anoxic-AerobicProcess　YangXiaoyietal(40)…………………………………………………………………………………………………………Abstract:Theremovalsofsulfateandnitrogenfrompolyacrylonitrilefiberwastewaterbycoagulation-anaerobic-anoxic-aerobicprocesswerestudiedinlaboratoryscale.Bythisprocess,fairremovalsof78%～82%,95%～98%,60%～65%,75%～85%forCOD,BOD,totalnitrogenandEDTArespectivelyhavebeenobtained.IntheeffluentthelevelsofCOD,BODandEDTAareinthesphereof220～260mg/L,lessthan15mg/Landlessthan25mg/Lre-spectivelyandtheNH3—NandS2-arenotdetectable.TreatmentofPhosphorusWastewaterfromHouseholdRefrigeratorandWasherFactorybyTwo-StepPrecipitationUsingCalciumChlorideLiuShaogenetal(45)……………………………………………………Abstract:Engineeringpracticeoftwo-stepchemical-precipitationusingcalciumchloridetotreatthewastewatercontainedphosphorusfromhouseholdrefrigeratorandwasherfactoryisintroduced.Whentheinletphosphatecontentisinrangeof10～50mg/L(asP),underconditionthattheCa/Pratiois2∶1,5∶1andpHis10.0～10.5,10.5～11.0respectively,thephosphatecontentineffluentofthechemicalprecipitationprocesswillbeaslowas0.174～0.189mg/L.OnCentralizedFireWaterSysteminBigPublicBuildingAreaMaJinkai(51)………………………………………………Abstract:Centralizedfirewatersystemhasadvantagesofwaterresourcessaving,lowerspaceoccupation,lowerinvestmentandloweroperatingexpenses.WiththeprojectoftheFinancingStreetinBeijing,thefeasibilityandeco-nomicanalysisofcentralizedfirewatersystemaredescribed.BeltThickener-PressFilterZhangLinetal(72)…………………………………………………………………………………Abstract:Thetechnicalfeaturesofbeltthickener-pressfilterincludingthestructure,equipment,operatingandsettinguparepresented.Thisequipmentisconsistedofbeltthickener-dewateringunitandbeltpressfilter.Thebeltthickener-dewateringunithascomponentsofVenturipipe-mixer,rackclassifier,gravitationaldewateringtankandcon-troldevices.Thebeltfilterpresshascomponentsofgravitationaldewateringtank,pre-pressurizationunit,pressurizationunitandcontroldevices.Finallytheoverallfeatureofthisequipmentisdescribed.RenovationofDispatchingSystemforWaterSupplyinBengbuCityChangShuyu(78)………………………………………Abstract:AstheolddispatchsystemusedinBengbuWaterSupplyCo.inAnhuiProvincecouldnotsatisfytheneeds,itsrenovationwasdonein1999.Operationforayearhasprovedthatthissystemhasbeenreacheddesignre-quirements.Thedesignofthisprojectispresentedinthispaper.EstablishmentofOptimalDispatchingModelforLargeWaterSupplySystemLuMouetal(81)……………………………Abstract:Theoptimizationdispatchingcontrolisdiscussedsystematicallyonthebasisoftheinherentfeatureofthewaternetworkandthepracticalexperiencesinthiscountry.Agraduatedoptimizationhasbeenproposedforhiddenmodel.Especiallyanoptimizationstrategyhasbeenputforwardtofitthedemandofwater