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183Vol18,No320029ChemicalReactionEngineeringandTechnologySep, 2002:2002-02-28;:2002-04-02:(1975-),,,;(1970-),,,。:(X599011):1001-7631(2002)03-0249-06, , (, 300072): 、、C/N/P、4,、,,,、,。、、,。,,,。:; ; :TQ085+.413 :A1 ,、、、、A。,,,。,,,。:,,,pH;:,,[1,2]。[3]。,,,。,,SBR,。2 2.1 1。1L,,,。。。1 Fig1 Schematicrepresentationofexperimentalapparaus1-;2-;3-;4-;5-2.2 A,:、、A,。,COD3000mg/L,1500mg/L。、。2.3 ,,,。。3d。4d,(、、,)。,,。9d,。,。12cm,,6cm。,,、,,;,,“”,,、。,。,30dA。2.4 ApH,、、C/N/P、,。、、、。[4],,。[5]NCOD=COD0V1MLSS(V1+V2)·24tNCOD—(kg·kg-1·d-1); COD0—COD(mg/L);V1—(L);V2—(L);t—(h);MLSS—(mg/L)。,。,。、C/N/P。(COD)[6]。SVI。SVI,。250 20023 2 SVIFig2 EffectofsludgeloadonSVI3.1 2000mg/L,C/N/P100∶5∶1,26℃,4.0mg/L,pH=7,,SVICOD2。2,(0.1～7.3kg·kg-1·d-1),。,SVI,,,。,SVI,,。SVI,[5],SBR,[7]。,,COD,4.8kg·kg-1·d-1,,、,,,COD。:3 SVIFig3 EffectofdissolvedoxygenonSVI0.1～4.8kg·kg-1·d-1,,。3.2 ,1.5kg·kg-1·d-1,,,3。3,,。0.3mg/LCOD,,,,。3.3 N、P1.C/NC、P,,C/N(CODcr/NH4+-N)100/1、100/2、100/5、100/10,,,4。2513. 4 C/NSVIFig4 EffectofmassratioofC/NonSVI,C/N=100∶1,,,,45mL/g120mL/g,。COD,。C/N=100∶2,,,,67mL/g。COD。C/N100∶5100∶10,,,45～58mL/g,COD。,C/N。N,N,,;,N,C/N100∶5100∶10,,,、、。,。C/N,,;,,,。:,C/N100∶5。2.C/PC、N,,,C/P100/0.1、100/0.5、100/1、100/2,,。5。,C/P=100∶0.1,48mL/g134mL/g,N,COD。C/P100∶0.5,,,SVI45～53mL/g,COD。,。,,;。3.41.5kg·kg-1·d-1,4.0mg/L,C/N/P=100∶5∶1,252 20025 C/PSVIFig5 EffectofmassratioofC/PonSVI6 SVIFig6 EffectoftemperatureonSVI。COD6。6,,,,[2]。,15～36℃,,。,,,。4 ,0.1～4.8kg·kg-1·d-1,1.5mg/L,C/N/P100∶5∶1,15～36℃,,COD。:[1] ,, ,.[J].,1999,7(1):88～93.[2] ChundakkaduKrishna,MarkCMVanLoosdrecht.EffectofTemperatureonStoragePolymersandSettleabilityofActivatedSludge[J].WatRes,1999,33(7):2374～2382.[3] , .[J].,2000,16(2):5～8.[4] MasahiroShishido,MasayukiToda.ApparentZero-OrderKineticsofPhenolBiodegradationbySubstrate-inhibitedMicrobesatLowSubstrateConcentrations[J].BiotechnolBioeng,1996,50:709～717.[5] ,,,.SBR[J].,1999,15(6):11～13.[6] .BG11914-1989.[7] ,, .SBR[J].,1999,15(11):29～32.(259)2533. [5] .[J].,2000,20(2):5～8.[6] ,, ,.[J].,1999,19(4):28～30.[7] ,,.1[J].,1996,15(4):28～30.[8] , ,.[M].:,1988.[9] ,,,.[J].,1996,14(5):14～17.StudyonFlocculationDecolorizationofPrintingandDyeingWastewaterXIAORui-de, RUANFu-chang(ResearchInstituteofChemicalEngineering,SouthChinaUnivofTechnol,Guangzhou 510640,China)Abstract: Theprintinganddyeingwastewater(PDW)fromaPrinting&DyeingFactoryinGuangzhouwasstudiedontheflocculationdecolorization(FD)withkindsofdecoloringflocculants(DeFs).TheeffectsofDeFdosagesonFDwereinvestigated,andthecooperationofDeFswithlimewasalsoresearched.ThefinalresultsindicatedthatmostofconventionalDeFswereofnoef-fectinFD.WhenpHwasadjustedto10.5bylime,WaterCleaningKing(WCK)7possessesexcel-lentFDcharacteristics,andthebestpHiswithintherangeof10～11with700mg/Ldosage.WCK8andDecolorizationFairy(DF)alsopossessexcellentFDcharacteristicswithintherangeofpH6～8,buttheadjustmentoflimemaymakepartorallofthemlost.InordertorealizethesameFDef-fect,WCK7isthebest,WCK8nextandDFworstintheintegratedtreatmentcost. Keywords:printinganddyeingwastewater(PDW); flocculation; decolorization; floccu-lant(253)StudyonFactorsAffectingSludgeSettleabilityinPhenolicWastewaterTreatmentJIXiu-ling, ZHANGJin-li, LIWei(SchoolofChemicalEngineering&Technology,TianjinUniversity,Tianjin300072,China)Abstract: Factorsthatmaycausedeteriorationofsludgesettleabilitywerestudiedinourresearch,fourfactors:loadofsludge,dissolvedoxygen,C/N/PandtemperaturewerearguedandsuchaconclusionwasdrewthattheshortageofNandPnutrimentswouldinducedeteriorationofsludgesettleability,forfilamentousbacteriaarecapableofaccumulatingnutrientsandwillinapredomi-nantgrowthstatewhenlowN,Pnutrimentssupplied,thusthestructureofZoogloeasppswouldbecomelooseandwithapoorsettleablity.Moreover,althoughthesettleabilitychangedlittleintheinvestigatedrangeoftheotherthreefactors,adeteriorationofeffluentqualityoccurredwhenover-loadedorlowdissolvedoxygensuppliedbecauseofitsinhibitiononmetabolismprocess. Keywords:activatedsludge; sludgesettleability; phenolicwastewater2593.