MSBR工艺污泥膨胀的分析与对策

©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(,518031):MSBR,,DO,,,:MSBR;;;:X703:C:1000-4602(2009)18-0093-03AnalysisandCountermeasuresofSludgeBulkinginMSBRProcessCUIWen2liang,DUYing2hao,LIHong2yuan,ZHONGZhi2rong(ShenzhenWaterGroupCo.Ltd.,Shenzhen518031,China)Abstract:TheMSBRprocessisusedinamunicipalwastewatertreatmentplantinSouthernChi2na.ThecausesforsludgebulkinginMSBRprocessareanalyzed.ItisbelievedthatthesludgebulkingiscausedbyoilintheinfluentandlowerDOintheaerationtank.Thesludgebulkingproblemhaseffective2lytreatedbyregulatingtheoperationparameters,addingcoagulantaidandsterilizingagentandrecon2structingtheaerationtank.Keywords:MSBR;sludgebulking;dissolvedoxygen(DO);oilymatterMSBR,MSBR,(A)MS2BR,,,,MSBR,,1A200112,,200311MSBR,,,20059,SVI11Tab.1ActivatedsludgesettleabilityineachstagemLg-1SVI20021220031110020031220045100200200462004102005002004112005810020020059200612100,,,239251820099CHINAWATER&WASTEWATERVol.25No.18Sep.2009©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.=397.51,;pH7,pH6.8,pH;OUR2030mg/(Lh),;,MSBR,(324mg/L,124mg/L),211,,A20032004,20042BCD,,,KLa,ASBR(EP2DM),,212DOMSBR,8529m3,DN400,(14,3DO),DO0.3mg/L,0.7mg/L,DO213DOMSBR,SBR,,/,,PHB,,,SBR,,,,,,AMSBRSBRDO,,,,COD,,Kb,DO,DO,3311,,A,,,,,2004,MSBRDO1mg/L,,SVI312,,DO;SBR(SBR),,SVISBR1020min,492518©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.:1.6g/L2.5g/L,;SVI500mL/g300mL/g,,,CODSS,pH,[2],SVI,20d200510%45t(3),,SVI3,[1],;,,,(),,A,85d,1218d,A,,,A,,,,,,,,2gCl2/kgMLSS,3Tab.3Planofchlorinationforcontrolofsludgebulking2005628752005725730/(gCl2kg-1MLSS)357105/d32215/(Lh-1)169.0281.7394.4563.5193.0/(mgL-1)7.212.016.824.08.6/(d-1)1.61.61.61.61.931420056A,DO2mg/L,SVI100mL/g,,4AMSBR,MSBR;,MSBR,SS90%,,,,,,,,,:[1].[M].:,1997.[2],.(PAC)(PFC)[J].,2004,30(6):15-17.:[phone]E-mail:[e-mail]:5180813:2009-01-2359:MSBR2518