SBR法处理城镇污水中DO控制张丽莉

4　10环境工程学报Vol.4,No.10201010ChineseJournalofEnvironmentalEngineeringOct.2010SBRDO张丽莉　赵旭德　方月梅　胡譞予(,435003)　　SBR,SBRDO。20±5℃,pH7±0.5,SBR、30min、240min、60min、30min,(GB18918-2002)A,,DOCOD、、。:DOSBR,DO0.8～1.5mg/LDO2.5～4.5mg/L,。　　SBR　DO　X703　　　A　　　1673-9108(2010)10-2217-04DOcontrolintreatingtownwastewaterbySBRZhangLili　ZhaoXude　FangYuemei　HuXuanyu(SchoolofEnvironmentalScienceandEngineering,HuangshiInstituteofTechnology,Huangshi435003,China)Abstract　ThetownwastewaterwastreatedbySBRtosearchtheoptimalconcentrationrangeofDOintheprocess.Whentheinlettemperaturewas20±5℃,pHwas7±0.5,SBRoperatingparameterwassetasinstan-taneouswaterinflow,mixingof30min,aerationof240min,precipitationof60minand30minfordrainage,iftheeffluentqualitycouldmeetstandardA,class1oftheDischargeStandardofPollutantsforMunicipalWastewaterPlant(GB18918-2002),thedifferentaerationamountwascontrolledtoanalyzetheimpactoftheDOconcentrationontheremovalefficiencyofCOD,totalphosphorusandammonianitrogen.TheresultsindicatedthattoohighDOconcentrationcouldnotreducethetreatmenttimeandmorestableoperationcouldbeachievedwhenDOconcentrationwasintherangeof0.8～1.5mg/Lduringaerationstagecomparedtothatintherangeof2.5～4.5mg/L,whichhelpedtoreduceenergyconsumption.Keywords　townwastewater;SBR;DO:(2009321):2009-10-20;:2010-03-12:(1970～),,,。E-mail:[e-mail]　　,,,。SBRDO、pH、ORP[1～11],SBR,--[12～15],,SBR、、。、、、,DO,COD、、DO[16～22]。SBR,DO。1　SBR,53.5cm×60cm×28cm,,30L。,。YSI-55(DO)、PHS-3CpH、UV-1100、MS-3COD。2　SBR。COD340～380mg/L,22～30mg/L,3～4mg/L,pH7～9。:NH3-N、TP、COD4、DO。,SBR:、30min、240min、60min、30min。1/4、13d、MLSS3000～3500mg/L。0.5、0.60.7m3/h。3　3.1　SBRDOCOD、,DO[20]。0.5、0.60.7m3/h,DO,1。1　DOFig.1　ChangeofDOwithdifferentaeration,,DO,,DODO,,,DO,0.5m3/h,DO0.8～1.5mg/L,0.6m3/h0.7m3/h,DO2.5～4.5mg/L。,,,0.5、0.60.7m3/h,DO0.08、0.51.2mg/L。,DO。3.2　COD、、、,DO[12,17,21,24]。0.5、0.60.7m3/h,COD2。0.5、0.60.7m3/h,COD72.4%、74.5%、77.5%;4h。SBR,COD,COD2　CODFig.2　ChangeofCODwithdifferentaeration,COD15min,DO、,COD[19],,COD。0.7m3/h0.6m3/h,DO2mg/L,,2hCOD;0.5m3/h,4.5h,CODCOD,。,COD。3.3　[21],SBR,95%,,,PHA,,C/N[22]。,[23]。0.5、0.60.7m3/h,1,0.5m3/h。3NH3-N3。3　NH3-NFig.3　ChangeofNH3-Nwithdifferentaeration,0.5、0.60.7m3/h,NH3-N77.8%、80.0%221810:SBRDO82.3%,3h。1,,0.5m3/h,DO-,。3,,0.5m3/h,,。0.6m3/h0.7m3/h,DO1mg/L,,。,0.5m3/h,DO0.8～1.5mg/L,-,DO,,2COD。,DO1mg/L。,,,,,,,-,COD,,pH,pH,。pH[12,20]。0.6m3/h0.7m3/h,1,1h,,,。1hCOD,DO,2COD,,NH3-N,pH,。3,NH3-N0.5m3/h,NH3-N,0.6m3/h,0.7m3/h。4h,3NH3-N。3.4　,,。,,β(PHB),;,,PHB。PHB,,[24]。0.5、0.60.7m3/h,TP4。4　TPFig.4　ChangeofTPwithdifferentaeration0.5、0.60.7m3/h,94.2%、95.7%97.3%,2h。3TP,,,,。10min,4,DO,,2h,0.5mg/L。,0.5m3/h0.6m3/h,TP,0.7m3/h,,TP。CODDO。4　　(1)SBR,。0.5m3/h,SBR-、-;0.6m3/h0.7m3/h,、。SBRCOD、NH3-NTP(GB18918-2002)A。(2),0.5、0.60.7m3/h,TP2h,NH3-N3h,COD4h,COD,3,。,SBR。(3),0.5m3/h,,,COD、N、P22194。0.6m3/h0.7m3/h,DO,,。,DOSBR,DO0.8～1.5mg/L,,,NH3-NTP,COD、TP、NH3-N(GB18918-2002)A。[1],,,.SBR.,2009,29(6):1121～1129[2]CasellasM.,DagotC.,BauduM.SetupandassessmentofacontrolstrategyinaSBRinordertoenhancenitrogenandphosphorusremoval.ProcessBiochemistry,2006,41(9):1994～2001[3]GaoD.W.,PengY.Z.,LiangH.,etal.Usingoxidation-reductionpotentialORPandpHvalueforprocesscontrolofshortcutnitrification-denitrification.JournalofEnvironmentalScienceandHealth(PartA),2003,38(12):2933～2942[4]WangY.Y.,PanM.L.,YanM.,etal.Characteristicsofanoxicphosphorsremovalinsequencingbatchreactor.JournalofEnvironmentalSciences,2007,19(7):776～782[5]LemaireR.,MarcelinoM.,YuanZ.G.Achievingtheni-tritepathwayusingaerationphaselengthcontrolandstep-feedinanSBRremovingnutrientsfromabattoirwastewater.Biotech.andBioeng.,2008,100(6):1228～1236[6]LiB.K.,IrvinS.ThecomparisonofalkalinityandORPasindicatorsfornitrificationanddenitrificationinasequen-cingbatchreactor(SBR).BiochemicalEngineeringJour-nal,2007,34(3):248～255[7]PambrunU.,PaulE.,SperandioM.Controlandmodelingofpartialnitrificationofeffluentswithhighammoniacon-centrationsinsequencingbatchreactor.ChemicalEngineer-ingandProcessing,2008,47(3):323～329[8]PooK.M.,InJ.H.,KoJ.H.,etal.Controlandnitrogenloadestimationofaerobicstageinfull-scalesequencingbatchreactortotreatstrongnitrogenswinewastewater.Ko-reanJ.Chem.Eng.,2005,22(5):666～670[9]PuigS.,CorominasL.,VivesM.T.,etal.Developmentandimplementationofareal-timecontrolsystemfornitro-genremovalusingOURandORPasendpoints.Ind.Eng.Chem.Res.,2005,44(9):3367～3373[10]PuigS.,CorominasL.,TrqoreA.,etal.Anon-lineop-timizationofaSBRcycleforcarbonandnitrogenremovalbasedonon-linepHandOUR:Theroleofdissolvedoxy-gencontrol.Wat.Sci.Tech.,2006,53(4～5):171～178[11]WangS.P.,PengY.Z.,WangS.Y.,etal.Applyingreal-timecontroltoenhancetheperformanceofnitrogenremovalinCASTsystem.JournalofEnvironmentalSci-ence-China,2005,17(5):736～739[12],,,.SBR.,2009,37(9):4238～4239[13]GuisasolaA.,PijuanM.,BaezaJ.A.,etal.Improvingthestart-upofanEBPRsystemusingOURtocontroltheaerobicphaselength:Asimulationstudy.Wat.Sci.Tech.,2006,53(4～5):253～262[14]GuoJ.H.,YangQ.,PengY.Z.,etal.Biologicalnitro-genremovalwithreal-timecontrolusingstep-feedSBtechnology.EnzymeandMicrobialTechnology,2007,40(6):1564～1569[15]YangQ.,PengY.Z.,LiuX.H.