跌水曝气改进型填料滤料排水系统处理屠宰废水的设计姜湘山

———()姜湘山　王春雷(,110015)　对屠宰厂原有的排水管道系统进行改造和革新,使之成为沉淀、厌氧好氧生物接触氧化与过滤的新型排水系统,用于屠宰废水处理,实现了达标排放。　跌水曝气　改进型排水系统　处理　屠宰废水1　1.1　屠宰废水水质及排放特点,,、。,:BOD51000～2000mgL,CODCr2000～5000mgL,SS300～600mgL,NH3-N=200～300mgL,15～30mgL,150～300,pH=6.8～8.5,。,,,100,10:004:00,4～5h,100,15～30m3,,。1.2　排水管道系统处理屠宰废水的研究,,,[1]。,CODCr,80%,。2　2.1　改造型排水系统要求:(1),,,,;(2);(3)、;(4),。,,、,。,,“”,1。1　“”1—;2—;3—;4—;5—;6—;7—。2.2　改进型排水系统用于屠宰废水的工程设计30m3,2。2　1—;2—;3—;4—;5—;6—;7—。:Q=WV=πd24·1nπd24πd0.67I0.50.31nd2.67hL0.525　　　200212206DOI:10.13205/j.hjgc.2002.06.008　Q———;W———;V———;I———;n———;d———;L———;h———。,n、d,h、L,h,L。,,,,,,、、。,,30m3,80WQ,21.6～30m3h,12.7m,5.5kW;40m3,DN200,1.5m,50%～80%,700mm,1000mm,1000mm,10m,45m,300～400mm。2.3　运行方法,,,。。,,。2.4　运行效果、、、CODCr、。3、4。。GB13457-92《》《》《、》(pH6～9,COD120mgL,SS200mgL,20mgL)。3　CODCr4　　BOD5/mg·L-1CODCrmg·L-1SSmg·L-1mg·L-1NH3-Nmg·L-1pH14503480730242306.8～8≤30≤100≤150≤10≤156.8～93　(1)———()。(2)。(3)。(4)。(5),。(6),、、。(7)60%,70%。1　..,2000.(9):12～16.2　..,2001.(5):45～47.3　　.GAF-SBR.,2001.(3):14～15.　,,19469,1970,,。2002-04-2026　　　200212206STUDYONTHEDISPOSALTECHNOLOGYOFPIGGERYWASTEWATERYangChaohuietal(19)…………………………………………………………………………………………………………………………………………Abstract　Alargeamountofwastewaterfrompiggeryfarmismostlydischargeddirectlywithoutappropriaterecycleandtreatment,whichcanbringaboutaseriouspollutiontotheenvironment.Thispaperintroduceadisposaltechnologyofpiggerywastewater,thatissedimentation-UASB-SBRprocess.Theresultsofthetestprovethataftertreatmentbytheprocess,theindexesofNH3-N,BOD5,CODCrinpiggerywastewaterareuptothedischargestandards.Keywords　piggerywastewater,NH3-N,CODCr,UASBandSBRSTUDYONSUSPENDEDCHAINAERATINGSYSTEMANDRELEVANTTECHNOLOGYWangTaoetal(22)…………………………………………………………………………………………………………………………Abstract　Aerationtechnologyandequipmentarealwaysthecorepartofactivatedsludgeprocess.Butnowaerationequipmentexistsmanydeficiencies,whichproducegreatimpactonefect.Asuspendedchainaeratingsystemsolvestheproblemsthatpuzzleusforalongtime.Thispaperanalyzesequipmentcharacteristic,technologycharacteristic,economicresultsofthesuspendedchainaeratingsystem.Throughalong-termresearches,awaytobuildlowinvestmentandhighefficiencysewageplantinourcountryisprovided,whichmakesitpossibletoincreasesewagetreatmentefficiencyinashorttime.Keywords　suspendedchain,movingaeration,fixingaeration,microporeaeration,delayedaerationandmultistageAODESIGNOFADROPAERATION-MODIFIEDFILLER(FILTERINGMEDIUM)DRAINAGESYSTEMFORTREATINGSLAUGTERHOUSEWASTEWATERJiangXiangshan(25)……………………Abstract　Theoriginaldrainagesystemforaslauthterhouseismodifiedandrenovated,whichhasbecomeanewtypedrainagesystemforsedimentating,oxidatingbyaprocessofanaerobic-aerobicbiocontactandfilteringtheslaughterhousewastewater,whosedischargeisuptothestandards.Keywords　dropaeration,modifieddrainagesystem,treatmentandslaughterhousewastewasterSTUDYONSEMI-DRYSUSPENSIONFGDOFDICYCLICFLUIDIZEDBEDANDITSENGINEERINGPRACTICEMaChunyuanetal(27)………………………………………………………………………Abstract　Adeviceofsemi-drysuspensionFGDofdicyclicfluidizedbedisproposed,whosesmallsizedpilottestandindustrialdemonstrationhavebeenfinished.Itisindicatedbytheengineeringpracticethatthedesulphurationefficiencyoftheprocessis92%andcanfittedfavorablewithanelectrostaticprecipitator.Keywords　desulphuration,two-circulation,fluidizedbeandsemi-dryprocessDYNAMICFILTRATIONOFFIBROUSFILTERXiangXiaodongetal(31)………………………………………Abstract　Thebasicfiltrationtheoryofthefibrousfilterisfirstlyintroducedinordertodiscussthedynamicfiltrationofthefibrousfilter.Inthelightofthephenomenonofthedustlayerfiltration,anewdynamicfiltrationefficiencymodelofthedustlayeronfiltersurfaceisdevelopedbythegranularbedfiltrationtheory.Thecomparisoninvestigationhasshownthatthisnewmodelcanrevealthepatternofthedynamicfiltrationprocessesdeeply.Keywords　fibrousfilter,surfacefiltration,dynamicfiltration,granulaanddedustingefficiencyINFLUENCESOFOPERATINGPARAMETERSONTHEPERFORMANCEOFSEMI-DRYPROCESSFLUEGASDESULFURIZATIONWeiEnzongetal(35)…………………………………………………Abstract　Fuyanglimeisselectedtobethedesulfurizationagentforexperimentresearch.Theinfluencesofoperatingparametersondesulfuizationefficiencyareinvestigated,andtheirmechanismsareanalyzed.Theresultprovesthattheadiabaticsaturationtemperatureatthedesulphurationtoweroutlethasthemostevidentinfluenceonthedesulphurationefficiencyofthesystem,andtheratioofcalciumtosulfurcomes3ENVIRONMENTALENINEERINGVol.20,No.6,December,2002