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2,,*,,,,,,(,410082):,SBR2(R1:;R2:),(4h)(8h).,R1R2.R1R2(MLVSS)(TP)72~7738~46mgg-1,MLVSSTP36~3827~31mgg-1.R1(PHA),30min,;R2PHA45min.R1,R2PHA,(AO)PHA,R1R2,R1R2.:;;PHA;;:X703.1:A:0250-3301(2010)01-0124-05:2009-03-01;:2009-08-14:(NCENT-0770);(50478054);(2004DFA06200);(K051132-72):(1984~),,,,E-mail:liuylhn@163com*,E-mail:xmli@hnu.cn;xmli121x@hotmail.comEffectsofTwoTypicalSubstratesastheSoleCarbonSourceonBiologicalPhosphorusRemovalwithaSingle-stageOxicProcessLIUY-ilin,WANGDong-bo,LIXiao-ming,YANGQi,ZOUGao-long,JIABin,ZENGTian-jing,DINGYan,ZENGGuang-ming(CollegeofEnvironmentalScienceandEngineering,HunanUniversity,Changsha410082,China)Abstract:Toinvestigatetheperformancesofphosphorusremovalinasequencingbatchreactor(SBR)withsingle-stageoxicprocessusingsyntheticalwastewater,glucose(R1)andacetate(R2)werefedtotwoSBRsasthesolecarbonsource,respectively.Theoperationrunmodewasdeterminedtobe:influentaeration(4h)settling(8h)effluent.TheresultsshowedthattheperformanceofphosphorusremovalinR1washigherthanthatinR2aftersteady-operation.Totalphosphorus(TP)removedperMLVSSinR1andR2were72-77and38-46mgg-1duringaeration,respectively,buttherateofphosphorusreleaseatthetworeactorswere36-38and27-31mgg-1duringtheidlezone,respectively.Theenergystorageofpoly--hydroxyalkanoates(PHA)wasconstantnearlyinR1duringthewholeperiod,butglycogenwasaccumulatedtothemaximumvalueat30minutesofaeration,andthenwasdecreasedtotheinitiallevel.HoweverinR2,PHAandglycogenwerebothaccumulatedatabout45minutesofaeration.ThisphenomenonsuggestedthatglycogenisthemainenergysourceformetabolismduringaerobicperiodinR1,andthemainenergyresourcecomefromthedecompositionofPHAandthehydrolysisofglycogeninR2ThefactsshowedthatglycogencouldreplacePHAstosupplyenergyforphosphateuptakeandpolyphosphateaccumulationinsuchasingle-stageoxicprocess.SinceglycogenaccumulatedinR1wasmorethanthatinR2,theefficiencyofphosphorusremovalinR1washigherthanthatinR2Keywords:single-stageoxicprocess;biologicalphosphorusremoval;poly--hydroxyalkanoates(PHA);glycogen;poly-p(-),SCVFAs().,,SCVFAs[1~3].Liu[4](GAOs),(PAOs).Cech[5],.SCVFAs,(SCVFAs),31120101ENVIRONMENTALSCIENCEVol.31,No.1Jan.,2010,-.[6~8],SBR,TP95%,PHA..,,,.,,,SBR(),SBR.,2,,.11.12(R1R2)SBR,180cm,350cm,113L,10L.,,1.SBR,-(4h)-(8h)-,,5L,24h,12d.pH8002.,5000mgL-1,20d,,,.1.2,R1,R2,15mmolL-1,(1),[9].05molL-1HClpH,pH8002..1.3TP:[10];MLSSMLVSS:1Fig.1Schematicdiagramoftheexperimentequipment1Table1ComponentsofthesyntheticwastewatermgL-1mgL-110~155405501[11];:-[12].PHA[13,14]:50mL,-5410Pa20h,20mg1,2-2mL2mL(14),1004h,2mL,20~30s,,PHB,,;PHB.1LPHBDB-5(30m02mm025m),,15mLmin;115;FID;80,1min,45min270,3min;250,180.221TP,R1R2TP,23.23,.R11251:22R1Fig.2ChangesofTPinR13R2Fig.3ChangesofTPinR232mgL-1,4h18~22mgL-1,94%,8h14~15mgL-1.R236mgL-1,4h24~26mgL-1,28%,7~8mgL-1,R2R1.,MLSSMLVSS,R1MLSSMLVSS50003900mgL-1,R2MLSSMLVSS30002600mgL-1,CO2.,R1R2MLVSS.R1R2MLVSSTP72~7738~46mgg-1,8h,R1R2MLVSS36~3827~31mgg-1,R1R2.2.2R1R245,R1R2.R1PHA,124R1Fig.4Varietyofmult-iparameterduringtherepresentativecycleinR15R2Fig.5Varietyofmult-iparameterduringtherepresentativecycleinR1mgg-1;45min,,0min,.R1,.R1,R2AO[15,16],PHA.30min,PHA,30~90min,PHA,2h,,PHA.PHA,Lopez[17],,PHA.,,.2.3R1R2[18~20],,3,12631PHA,PHA,VFA.,(45),AO.R1,.Yan[21],,.,,poly-p,,R1MLVSSMLSS(2).R1MLVSSMLSS[22].R2,,PHA,PHA2h(5),,.,,,,R2MLVSSMLSS(2)R2.2R1R2MLSSMLVSSTable2ComparisonbetweenR1andR2atdifferenttimeshR1R2MLSSMLVSSMLVSSMLSSMLSSMLVSSMLVSSMLSS0497238780783016254808454523040210769322427010838125124400707823042256408432.4R1R2AO,VFAS,,..[23,24],,EMP,TCA;,-COATCA,.,ATPTCAATP.,,,,,PHA,45,R1R2.,R1ATPR2,,R1R2ATP.,SBR,.R2TP28%,,,R2.,10mgL-15~75mgL-1[25,26],R210~12mgL-1TP,,,,.,,.3SBR(R1)(R2),1271:2.,R1R272~7738~46mgg-1.R1PHA,30min,,.R2,PHA,PHA.,,.:[1]RandallAA,BenefieldLD,HillWE.Theeffectoffermentationofproductsonenhancedbiologicalphosphorusremoval,polyphosphatestorage,andmicrobialpopulationdynamics[J].WatSciTech,1994,30(6):213-219[2]ChenY,RandallA,McCueT.Theefficiencyofenhancedbiologicalphosphorusremovalfromrealwastewateraffectedbydifferentratiosofacetictopropionicacid[J].WaterRes,2004,38:27-36[3]MullanA,McGrathJ,AdamsonT,etal.Pilo-tscaleevaluationoftheapplicationoflowpH-induciblepolyphosphateaccumulationtothebiologicalremovalofphosphatefromwastewaters[J].EnvironSciTechnol,2006,40:296-301[4]LiuT,MinoT,MatsuoT,etal.Glycogenaccumulatingpopulationanditsanaerobicsubstrateuptakeinanaerobic-aerobicactivatedsludgewithoutbiologicalphosphorusremoval[J].WaterRes,1996,30(1):75-82[5]CechJS,HartmanP.Competitionbetweenpolyphosphateandpolysaccharideaccumulatingbacteriainenhancedbiologicalphosphateremovalsystems[J].WaterRes,1993,27(7):1219-1225[6]WangD,LiX,YangQ,etal.Biologicalphosphorusremovalinsequencingbatchreactorwithsingle-stageoxicprocess[J].BioresourTechnol,2008,99:5466-5473[7],,,.SBR[J].,2007,28(3):534-539[8],,,.SBR[J].,2008,29(7):1867-1873[9]TayJH,ShowKY,JeyaseelanS.Effectsofmediacharacteristicsonperformanceofupflowanaerobicpacked-bedreactors[J].EnvironEng,1996,122(6):469-476[10].[M].().:,198996-120[11],.[M].().:,19854-26[12],,.[J].,2000,16:1-4[13]Takabatak