工业废水处理过程污泥减量化研究陈曦

＊陈　曦(,400047)　根据废水处理的工艺特点,从产生污泥的工艺单元着手减少污泥的产量,是污泥减量化的重要途径。研究表明,在高浓度酒精废水的处理过程中,通过控制厌氧反应温度,UASB反应器的结构以及污泥回流的路线,可以有效减少污水处理系统的污泥产量,并且不影响废水处理效率。该研究结果从工艺设计角度最大限度地减量化污泥的处置,对降低污泥处理运行费用,实现废水处理系统的良性运转有着积极的作用。　废水处理　污泥处理　污泥减量化　　　　　　　　＊(2002AA647020)0　,、,,[1,2]。,,[3,4]。,。,,,、UASB,。,。1　,,CODCr50000mgL,70℃。,(BC≈0.6),+。1。,CODCr1000～1500mgL,97%,50℃,,1　,1.5～2.0td(CODvss),75%,CODCr400mgL,30℃,0.7td(CODvss),2.2～2.7td(CODvss)。,,,、UASB3,。2　O'RoutVanderLast[5,6],。Arrehnius[7,8],。,30～40℃,。65℃,。70℃,,。,97　　　200710255DOI:10.13205/j.hjgc.2007.05.028,,2、3。2　(η)、(T)3　23No.1No.2,,70℃40℃,,3000～1000mgL。,UASB,,45%(70℃SP=100%)。,,,,,,,40℃,,,,[9]:　[COD]-[COD]=[]+[](1)　　(1),,,,,。3　UASB,UASB,,UASB,UASB[10]。,,1ms,,UASB。,,+UASBUASB,,UASB。UASB,,UASB,UASB。UASB,,4、5。4　UASB(Y)(H)4,10～15m,UASB,15m,。。15m。,。5　UASB(SP)(H)54,,,,,598　　　200710255。,,。4:Y=0.30431-0.441531+e(H-14.63049)0.67595+0.44153(2)　　R=0.98146,,:SP=-0.05583H+1.55833(3)　　R=-0.9814,SD=-0.03198。4　,,。,,CODCr1500mgL400mgL,1t,,。1。1　12()%55300CODCr(mg·L)-1144015681520　　,。5　,,,,50℃;+UASBUASB,UASB,UASB。9m7m16mUASB;UASBUASB。6。2。6　2　t1.5～2.00.9～1.20.70.42　　:CODVSS6　(1),,UASB,,。(2),,。,。[1]　BerndWeibusch.Utilitzationofsewagesludgeashesinthebrickandtileindustry.WaterScienceandTechnology,1997,36(11):1-8.[2]　LiuYu,TayJooHwa.strategyforminimizationofexcesssludgeproductionfromtheactivatedsludgeprocess.BiotechnologyAdvances,2001,19:97-107.[3]　DavisRD.UseofsewagesludgeonlandintheUnitedKingdom.WaterScienceandTechnology,1987,18(7):1-8.[4]　,..,2005(3):9-13.[5]　,.,,1991,11(4):46-51.[6]　GatzeLettinga,AdeMan,ARMVanderLast,etc.Anaerobictreatmentofdemesticseweageandwastewater,Wat.Sci.Tech,1993,27(9):67-73.[7]　.().:,2000:627-631.[8]　..:,1998:15-37.[9]　Metcalf&EddyInc.WastewaterEngineering:TreatmentandReuse.NewYork:McGraw-Hill,Inc.,2004:458-463.[10]　SchellinkhoutA,CollazosCJ.FullscaleapplicationoftheUASBtechnologyforsewagetreatment.Brail:IAWPRCAnaerobicDigestion,1991:145-152.　　400047　12　E-mail　[e-mail]2007-04-0599　　　200710255Abstract　Eachindexconsistsofatmosphereenvironmentqualityandithasitsownattribute,importanceandcomparability,whichmakestheprocessofscheme'sselectiongray.Thegrayrelationprojectionmethodisimprovedthroughdifferentiatecoefficientintroducedthatissuitablefordifferentsituationandweightaccountingbasedoninformationentropy,whichmakesevaluationofatmosphereenvironmentqualitymuchmoreobjective,equitableandaccurate.Inconclusion,instancedemonstratesthatthemethodisefficientandfeasible.Keywords　grayrelationprojectionmethod,atmosphereenvironment,informationentropyandqualityevaluationCOMPREHENSIVEASSESSMENTONSURFACEWATERENVIRONMENTAPPLYINGTHEIMPROVEDOSCULATINGVALUEMETHODHuangYue　ZhangJiangshan(91)……………………………Abstract　Inviewofthepracticalproblemoftheosculatingvaluemethod,thisessayintroducesthetargetdispersionrateandtheconceptofsuppositionalstrengthsandweaknesses,andfurtherimprovestheosculatingvaluemethod.Byapplyingtheimprovedosculatingvaluemethodtothecomprehensiveassessmentonsurfacewaterenvironment,theresultprovesthatthemethodisclearandeasytofollow,andisalsoconvenientandpracticalincalculating.Theresultoftheassessmentcanalsoprovidemuchpotentialinformation.Theresearchsuggeststhatthemethodisaneffectivewayofcarryingoutthecomprehensiveassessmentonsurfacewaterenvironment.Keywords　waterenvironmentqualityevaluation,osculatingvaluemethodandtargetdispersionrateCLEANPRODUCTIONPRACTICEOF502LuoGuogen　XiangZhaobang(95)………………………………Abstract　Itisanalyzedtheconditionsofthecleanproductionoftwo502enterprisesinTaizhouCity,summarizedtheirexperienceandachievement.Itisalsoputforwardthecleanproductionpotentialitiestoadvanceconservationofenergyandrawmaterials,reductionofpollution.Keywords　502,cleanproduction,conservationofenergy&rawmaterialsandreductionofpollutionRESEARCHONSLUDGEREDUCTIONDURINGINDUSTRIALWASTEWATERTREATMENTPROCESSChenXi(97)……………………………………………………………………………………………………………Abstract　Basedonthepropertiesofwastewatertreatmenttechniquesitisaimportantmethodforreducingsludgefromthesourceoftreatmentunit.Itwasprovedthatsludgeproductioncouldbereducedbycontrollingthetemperatureofanaerobicreaction,enhancingtheheightofUASBreactorandadjustingtherouteofsludgecircumfluenceduringalcoholwastewatertreatmentprocesswithoutadecreaseinwastewatertreatmentefficiency.Theresearchresultscouldbeappliedontechnicsdesigningofwastewatertreatmenttoreducethesludgeproductionofwholetreatmentsystem.Itisalsoworthwhiletocarryoutwell-balancedrunningofwastewatertreatmentsystembydepressingthesludgetreatingfeesthroughsludgereduction.Keywords　wastewatertreatment,sludgetreatmentandsludgereductionAPPLICATIONOFBIOLOGICALCONTACTOXIDATIONPROCESSINREFORMINGSHOPPINGCENTERCOMPREHENSIVEWASTEWATERTREATMENTWangWeigang　GuanXijun(100)…………Abstract　Biologicalcontactoxidationprocessandregulationofaircapacitywereusedtomodifytheformerprocesssoastodisposeshoppingcentercomprehensivewastewater.Whosedesigncapacitywas400m3d.CODCrcontainedininfluentwas1083～1146mgL,SS315～436mgL,afterdebugging,CODCrineffluentwas126～145mgL,SS65～83mgL,theremovalratesofCODCrandSSwere87%～93%and79%～81%.Theeffluentqualitycouldrea