UASB生物接触氧化工艺处理鸡爪加工废水实例杨沂凤

UASB-杨沂凤(,330047)　王顺发　吴　晓　黄贞岚　万　斌(,330029)　鸡爪加工废水含油脂、悬浮物较高,是一种较难处理的有机废水。采用隔油-厌氧(UASB)-生物接触氧化-絮凝联合处理工艺处理鸡爪加工废水,结果表明:工艺是可行的,处理后出水可达标排放。　鸡爪加工废水　UASB工艺　生物接触氧化0　。1t4～5t,30t。、、,。-(UASB)--,,,、。1　1.1　水质特点、、、。、,,。1。1　mgLCODCrBOD5SS350014001060116001.2　工艺选择[1-3],,1～2d,,1～2cm,,,,(2d)。,BOD5CODCr0.4,,,(UASB)-。2　2.1　工艺流程1。1　2.2　工艺流程特点及说明(1)、、,,4～10,(、)。。,,,,,。,。(2)UASB。UASB2,4,2,1.8m×5.5m。225m3,20h,CODCr4.2kg(m3·d)。。。,20℃,。(3)UASB。,28m3,。2。(4),,。3　3.1　UASB反应器中的微生物驯化培养[4]UASB。82　　　200610245DOI:10.13205/j.hjgc.2006.05.029,,6mm×6mm,。,,,。95%,15%,CODCr0.5kg(m3·d),,。。,,10d(pH6.5),2,,230%,,3d,,3.92kPa,40d,,(0.5～4mm),。,,,,。3.2　接触氧化池的微生物驯化培养。300～400mgL。,97%～98%。5m3。24h,2,15,,1,,,10d,,。,10d,,,,8m3。20d,,,20d1.5mm,,。3.3　联动运行40d,,,,,,,CODCr、SS,CODCr200～500mgL,SS200～350mgL,。SS,,[5],,(PAC),,,,,,,3‰～5‰(,4),。。4　(1),,,,,。(2),,。,,,,。,。(3)1～2cm,,,,,,。---,。,、、,(GB8978-1996)。。[1]　,..,1999,21(11):18-20.[2]　,..,1998,12(3):1-3.[3]　..:,1999.[4]　,,..,2002,20(4):32-33.[5]　,,..,2000(8):26-28.　　330047　235　　(0791)8305803E-mail　[e-mail]2005-12-0783　　　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,whichcouldbedischargeduptothestandard.Keywords　oil-smeltingwastewater,additionofchemicals,releaserandbiochemicalsystemPILOTTESTOFTREATINGURBANDOMESTICWASTEWATEROFLOWCONCENTRATIONUSINGUASBLuoWensheng　ZhangQing　CaiZhenhua(89)……………………………………………………………Abstract　Influence,parametersandmodelofa1.2m3up-flowanaerobicsludgeblanket(UASB)reactorwasstudied,whichwasoperatedatlowoperatingparametersof200mgCODCrL.Thesecondarystart-upofgranularsludgeinoculationwasusedforthetest.ThereactorwasoperatedunderSLRof0.06～0.13kg(kg·d),liquidupflowvelocityof1.4～1.7mhandhydraulicretentiontime(HRT)of3.0～2.5hattemperatureof32～5℃,forsixmonths.TheCODCrremovalefficiencyis40%～80%.Keywords　UASBandurbansewageEXTENSIONDESIGNOFTHEWASTEWATERTREATMENTENGINEERINGFORWAXPRINTINGPRODUCTIONLiuRongzhan　ZhangWei　ZhuShujunetal(91)………………………………………Abstract　Theextensiondesignofthewastewatertreatmentforwaxprintingproductionhasbeendone.Theresultsshowthatwhenthesplitflowcontainingwaxbymechanicalactionistreatedbythedoubleairflotation,thereuserateofthewastewaterandtherecoveryofthewaxinthewastewaterareallover90%,whenthesplitflowcontainingwaxbysaponificationistreatedbyacidificationandtheairflotation,therecoveryofthewaxinthewastewaterisover95%.Whenthewastewatercontainingwaxbysaponificationhasbeentreatedandprintingwastewateristreatedbyinternalelectrolysis,thedecolorationisover85%.Themixingwastewateristreatedbytheprocessofcoagulation-airflotation-biologicalcontactoxidation-sedimentation-filtration,theeffluentqualitycanmeetthenationalsewagedischargestandards.Thisprocesshasmanyadvantagessuchashighefficiency,stabletreatmenteffect,higheconomicandenvironmentalbenefits.Keywords　waxprinting,wastewatertreatment,recoveryofwax,coagulation-airflotation,biologicalcontactoxidationandfiltration　　Sponsor:　CentralResearchInstituteofBuildingandConstructionofMCCGroupPublisher:　IndustrialConstructionMagazineAgencyEditor:　　　TheEditorialDepartmentofEnvironmentalEngineering(33,XituchengRoad,HaidianDistrict,Beijing100088,China)