酵母菌-SBR系统处理高含油废水中曝气时间优化

213Vol.21No.320089JOURNALOFNINGBOUNIVERSITY(NSEE)Sept.2008:1001-5132200803-0413-05-SBR315211-SBRpHZeta812h100d3.ZetaX703.1A.[1-3].[4,5][6,7]..2090[8].[9-11].[12-14]...10SBRpHZeta-SBR.11.1-SBR1SBR.22.8L.pHDO2008-03-05.:[e-mail]4142008..CODSBR.1.2.3.4.pH5.DO6.7.8.9.1-SBR1.2105CandidautilisCandidaboidiniiRamirezCandidatropicalisRhodotorularubra(Demme)LoddeTrichosporoncutaneum3CandidalipolyticaCandidaintermediaCandidapseudolambica2CandidahalophilaTrichosporonasteroids..1.3MLSS6000mg·L-1SBR24h.0.51.5mg·L-1.pH5.COD12060mg·L-1(NH4)2SO4KH2PO4COD/N/P250/5/1.4hpHSVI()(2hCOD)CODZeta.1.4.-SBR100d.1SBR.(1h)(9h)(2.5h)(0.5h).1/2.1.1-SBRCOD/(mg·L-1)/(mg·L-1)BOD5/N/PpH950024000330014000100/5/15.0BOD5/(kg·(kg·d)-1)DO/(mg·L-1)/hSRT/d1.00.52.09401.5CODCTL-12CODBOD5OxiTopBOD5pHHM-14pH[15](TN)GB11894-89(TP)GB11893-89(Oil)3060(Mastersizer2000)ZetaZeta(Zetasizer2000).22.1224h(SVI)..0hSBR1/2COD11/2.COD3-SBR41597..2SVI.28h12h.812h.2SVI4h812h25mL·g-1.2.2pHZeta324hpHZeta.ZetapH.8hpH2.5Zeta1mV.Zeta12h0mV.Zeta.812h.2.3COD12060mg·L-1N90mg·L-1BOD/COD0.4BOD/P54/1P(BOD/P100/1).(4).BOD/N/P100/5/1.455.812hNN5mg·L-1812hP110mg·L-1P25mg·L-150.BOD/P200/1.3pHZeta4162008CODBOD/P100/1.—–..2.46.0h95μm.8h30μm12h25μm...5μm2030μm..62.57100dCOD950024000mg·L-1330014000mg·L-1COD88.997.593.499.9.9h.7100dpH2.63(1).(2)48h.(3)..3(1)COD12000mg·L-1-SBR812h.(2)9h100dCOD88.997.593.499.9.(3)3.[1],,.[J].,2004,29(3):66-69.3-SBR417[2],,,.[J].,2003,28(5):80-82.[3]AngelidakiI,AhringBK.Effectsoffreelong-chainfattyacidsonthethermophilicanaerobicdigestion[J].ApplMicorbiolBiotechnol,1992,37:808-812.[4]PandeyRA,SanyalPB,ChattopadhyayN,etal.Treatmentandreuseofwastesofavegetableoilrefinery[J].ResourConservRecy,2003,37(2):101-117.[5]ZouboulisAI.Treatmentofoil-in-wateremulsionsbycoagulationanddissolved-airflotation[J].ColloidSurface,2000,172(1-3):153-161.[6].[J].,2004,29(12):74-75.[7],,翚.A2/O[J].,2000,13(2):99-101.[8]ChigusaK,HasegawaT,YamamotoN,etal.Treatmentofwastewaterfromoilmanufacturingplantbyyeasts[J].WaterSciTechnol,1996,34:51-58.[9],,,.[J].,2001,21():60-64.[10],.[J].,2006(2):76-78.[11],,.[J].,2001,21(4):347-350.[12],,.[J].,2004,5(4):66-69.[13],,,.[J].:,2006,30(4):379-382.[14],,,.pH[J].,2006,7(9):94-98.[15].[M].4.:,2006.OptimizationofAerationTimeinTreatingHigh-strengthOil-containingWastewaterbyYeast-SBRSystemLIUYing,LÜWen-zhou,HUANGYi-zhen(FacultyofArchitecturalCivilEngineeringandEnvironment,NingboUniversity,Ningbo315211,China)Abstract:TenyeaststrainsareappliedintoaSBRsystemtotreathigh-strengthoil-containingwastewater.Therelationshipsareinvestigatedbetweenaerationtimeandremovalrateofpollutants,solutionpH,Zetapotential,utilizationratioofnitrogenandphosphorus,anddiameterofyeastfloc.Theresultsshowthattheoptimizedaerationtimeforthesystemisinarangeof8~12h,inwhichthemorestableandefficientsystemoperationisachieved.Basedontheanalyticalresultsdrawnfromappearance,oilremovalrateandchangeindiameterofyeastfloc,itsuggeststhattherapidadsorption,degradationandstabilizationareincludedinthedegradationofoil-containingwastewaterbyyeasts.Keywords:yeast;oil-containingwastewatertreatment;aerationtime;Zetapotential;flocdiameterCLCnumber:X703.1Documentcode:A