城市污水处理厂的污泥膨胀研究分析

Vol135No112200931(,100044),MicrothrixparvicellaSVI,SVI,DOStudyandanalysisonsludgebulkinginmunicipalwastewatertreatmentplantsChenJun(BeijingDrainageGroupCo.,Ltd.,Beijing100044,China)Abstract:Throughtheidentificationofthepredominantfilamentousorganismsandthestudyandanalysisontheeffectsoftemperature,selector,anddissolvedoxygenonsludgebulking,itwasreportedthatsludgebulkingcausedbyMicrothrixparvicellawouldusuallyhappenedinbiologicalnutrientremovalprocessduringwinter.StudiedtherelationshipbetweentemperatureandSVI,andanalyzedthecorrelationbetweeneffluentnitritenitrogenandSVI,andtheeffectofselectoranddissolvedoxygenonsludgebulkingwasalsoinvestigated.Keywords:Municipalwastewatertreatmentplant;Sludgebulking;Biologicalnutrientremoval;Temperature;Dissolvedoxygen;Selector;Nitritenitrogen,,,,4DOSVI,1420m3/d,,;4m3/d,A2/O,;60m3/d,A2/O;8m3/d,+SBR,SBR3,+SBR,23,,1413,432Vol135No1122009(12),Microthrixparvicella(),,Type00923,Type1701;(4),Microthrixparvicella,Type1701,Microthrixparvicella33.1582008(SVI),825,Vol135No112200933,Microthrixparvicella,Microthrixparvicella(1015)[1,2]57,SVI,SVI,SVIMicrothrixparvicella,,3SVI,Microthrixparvicella,23SVI,+SBRSVI3.2120084(SVI),,3,,Microthrixparvicella1,,,,+SBR,Chudoba,,1SVISVI/mL/gA2/O219A2/O+183190SBR58,,,Microthrixparvicella3.3DO,DO,,DO2mg/L(2),DODO,SVI,Microthrixparvicella,DOMicrothrixparvicella2DOSVIDO/mg/LSVI/mL/g12232434219182190573SVI,(C,),,,Type1701DO,,3SVIABCDSVI/mL/gSVI/mL/g851531151652202301531823.4Casey[3,4],NO-2NNON2O,NON2O(NO),;,Microthrixparvicella,,NON2O,,,34Vol135No1122009,NO-2NSVI,NO-2NSVI,,910NO-2N,NH3NNO-2NNO-2N,NO-2NSVICasey,,4(1)MicrothrixparvicellaMicrothrixparvicella15,,,15,Microthrixparvicella,23(2)Microthrixparvicella(3)DO,Type1701(4)NO-2NSVI,NO-2N,SVI,1JenkinsD,RichardM,DaiggerG.Manualonthecausesandcontrolofactivatedsludgebulkingandfoaming.3rdeditionLewisPublishers,20032MamaisD,AndreadakisA,NoutsopoulosC,etal.Causesandcontrol:Strategiesof,Microthrixparvicellabulkingandfoaminginnutrientremovalactivatedsludgesystems.WaterScienceandTechnology,1998,37(425):9173CaseyTG,WentzelMC,LoewenthalRE,etal.AhypothesisforthecauseoflowF/Mfilamentbulkinginnutrientremovalactivatedsludgesystems.WaterResearch,1992,26(6):8678694CaseyTG,WentzelMC,LoewenthalRE,etal.AhypothesisforthecausesandcontrolofanoxicOaerobic(AA)filamentbulkinginnutrientremovalactivatedsludgesystems.WaterScienceTechnology,1994,29(7):203212&:10004437206:(010)8838666626263E2mail:[e-mail]:200920720662009,2030,9,20092011,;20112018,10,