胞内聚合物在絮凝体与丝状菌污泥中的形成马鲁铭

:2002-03-27:(29877008);:(1959-),,,,,.E-mail:[e-mail]马鲁铭,高廷耀,周增炎(,　200092):()(),.:COD,;;COD.:;;:X52　　　　　　:A　　　　　　:0253-374X(2003)02-0229-04FormationofIntracellularBiopolymerbyAerobicFlocSludgeandFilamentousMicroorganismsMALu-ming,GAOTing-yao,ZHOUZeng-yan(NationalEngineeringResearchCenterforUrbanPollutionControl,TongjiUniversity,Shanghai200092,China)Abstract:Twosequencingbatchreactors(SBRs)andtwocontinuousflowstirred-tankreactors(CFSTR)wereoper-atedtoinvestigatetherelationbetweentheactivatesludgefilamentousbulkingandtheformationofintracellularpoly-mers,whichusedtwokindsofsyntheticwastewatercontainingglucoseoracetaterespectively.ExperimentalresultsshowthatduringtheaerationtheCOD(chemicaloxyendemand)leveldecreasedandtheintracellularpolymerscon-tentsincreasedslowly,withanalmostunchangedCODreductionrate.Therewerefewerintracellularpolymersformedinthebulkingsludgethanintheflocsludge.Moreover,flocsludgehadobviousinitialbothCODrapiddecreaseandin-tracellularpolymersincrease.Keywords:intracellularpolymers;sludgebulking;filamentousmicroorganisms　　,,[1],.,(polyhydrox-yalkanoicacidspolyhydroxyalkanoates,PHA),PHA、β-(poly-β-hydroxybutyrate,PHB).,,.1　.、、[1].———(SBR)31220032　　　　　JOURNALOFTONGJIUNIVERSITYVol.31No.2　Feb.2003(CFSTR);———.SBR4,、、、(DO).100∶10100∶6,100∶2,100∶1;0.23～1.30d-1;12℃23℃;.CFSTR.100∶12.1.2～6.0d-1,ρ(COD)1000mg·L-1,100～200mg·L-1,,,.,CFSTR.SBRCFSTR,CFSTR,3d.COD90%.,CFSTRCOD80%,,.CFSTR,,,10cm.,,.,,,.,.,,(),,.2　COD2.1　SBR,CFSTR:,0.5h,,400ml,SBR800ml,,.CFSTRCOD,100～200ml·L-1,.ρ(COD)800mg·L-1,.,,.ρ(COD)1.SBR2h,2h,,.45min,,9.15mg·L-1·min-1,6.41mg·g-1·min-1.1　ρ(COD)Fig.1　CODvarietywithaerationtimeinbothSBRandCFSTRfedwithglucose　　COD,.COD1000mg·L-1,COD73.5%.,4hCOD,5.84mg·L-1·min-1;,,5.26mg·g-1·min-1.COD2,CFSTRSBR.,,.、、.230　　　　　　　　31　,,,,.,COD.,.,:,,,,.2　w()ρ(COD)Fig.2　CODdecreaseandintracellularglycogenincreaseinbothSBRandCFSTRfedwithglucose2.2　PHBCOD3.SBR22dCOD50minCOD;10～30min.50min,COD.3　ρ(COD)Fig.3　CODvarietywithaerationtimeinbothSBRandCFSTRfedwithacetate　　SBRCFSTR,COD,30min18.5mg·L-1·min-1,6.01mg·g-1·min-1,COD;COD,0.99,3.74mg·L-1·min-1,2.13mg·g-1·min-1,0,..,.,COD,.SBRCODPHB4.PHB60min,1hCOD,PHB;1hCOD,COD,PHB.[2].CFSTRw(PHB).10min,w(PHB)16.1%10.1%,PHB180min,,PHBCODPHB,,,.231　2,:　　　　PHB.PHBPHB,.PHB.4　PHBCODFig.4　CODdecreaseandintracellularPHBincreaseinbothSBRandCFSTRfedwithacetate3　(1)CFSTRSBR.;,,,.(2)COD(PHB);COD,,(PHB).(3),.:[1]　,,　.PHB[J].,2000,17(9):519-525.[2]　MajoneM,MassanissoP,CsrucciA,etal.Influenceofstorageonkineticselactiontocontrolaerobicfilamentousbulking[J].WatSciTechnol,1996,34(5-6):223-232.··S2NS管艮华　　(S2NS)(MFC).MFC.《》,MFC.MFC,MFCMFC,.232　　　　　　　　31