SBR中除磷颗粒污泥的培养和A省略AO颗粒污泥工艺除磷特性研究刘小英

SBRAOAAO1,1,2,2(1.,430070;2.,710055):,,SBR,,2.,(AO),82d,,0.5～1.5mm,20～30mh,94%,1.0439,SVI50mLg;437d(SRPR)67.7mg(g·h),(SUPR)43.2mg(g·h),(TPSS)6.5%;448d(AAO),653dSRPR30mg(g·h),SUPR27.9mg(g·h),TPSS6.3%..:SBR;;:X703.1　:A　:0250-3301(2009)09-2655-06:2008-10-15;:2009-02-09:(50378076);(471-38650493):(1975～),,,,,E-mail:[e-mail]rusRemovalGranularSludgeandPhosphorusRemovalCharacteristicsoftheAnaerobicOxicandAnaerobicAnoxicOxicGranularSludgeProcessinSBRLIUXiao-ying1,JIANGYing-he1,GUOChao2,PENGDang-cong2(1.SchoolofCivilEngineering&Architecture,WuhanUniversityofTechnology,Wuhan430070,China;2.SchoolofEnvironmental&MunicipalEngineering,Xi'anUniversityofArchitecture&Technology,Xi'an710055,China)Abstract:Phosphorousremoval&denitrifyingphosphateuptakeofthegranularsludgewasinvestigatedinthisstudy.Inoculatedwithflocculationsludge,thegranulationofthebiologicalphosphorousremovalsludgewasrealizedinasequencingbatchreactor(SBR)fedwithsodiumacetatebymeansofhydraulicselectionunderananaerobicoxicalternatingoperation(referredtoasanAO).Thenthebiologicalphosphorousremovalgranularsludgewasinducedintothedenitrifyingphosphateuptakegranularsludgeunderananaerobicanoxicoxicalternatingoperation(referredtoasanAAO).Thepropertiesofthetwokindsofgranularsludgewerestudied.Thebiologicalphosphorusremovalgranularsludgewascompletedonthe82ndday.Thebiologicalphosphorusremovalgranulesludgeshowedsomecharacteristics,e.g.pallideflavensincolor,0.5-1.5mmindiameter,20-30mhinsettlingvelocity,94%inwatercontent,1.0439inspecificgravity,andbelow50mLginSVI.Themax.specificreleasephosphorusrate(SRPR),themax.specificuptakephosphorusrate(SUPR)andthephosphoruscontentoftheMLSS(TPSS)was67.7mg(g·h),43.2mg(g·h)and6.5%respectivelyonthe437thday.Onthe448thdaytheoperationofthereactorwaschangedintoAAO.Themax.SRPR,themax.anoxicSUPRandtheTPSSofthedenitrifyingphosphateuptakegranularsludgewas30mg(g·h),27.9mg(g·h)and6.3%respectivelyonthe653rdday.Thetwokindsofgranularsludgehadpotentialtocarryoutphosphorusremoval.Keywords:SBR;granularsludge;biologicalphosphorusremoval　　、.,、、,、、、[1～10].,(AO),(AA)、(AAO),(DNPAOs),[11,12];,,[13～15];,,[16～19]..SBR,AO30920099　　　　　　ENVIRONMENTALSCIENCEVol.30,No.9Sep.,2009DOI:10.13227/j.hjkx.2009.09.018,().447d,AAO,,.,2、,.1　1.1　SBR,31.5cm,16cm,5L,4L,,(1).、、、5.,;(SRT).2,ⅠⅡ,1.,Ⅱ,.1　SBRFig.1　SchematicdiagramoftheSBRusedinthisstudy1.2　,2,3.1.3　AO,,[2(a)].(MLSS8000mgL)2L,24hSBR　　　　1　Table1　OperationparametersduringthedifferentstagesinSBRⅠⅡh4～64min11min70～12070～90min120～18030～120min—30～105NO-3-Nmin—1～5min3～553～5min33r·min-1150～300300m3·h-10.08～0.150.08～0.15m3·(m3·h)-120～37.520～37.5DOmg·L-100DOmg·L-1—0～0.3DOmg·L-12～42～4380～110120～340℃25±225±2pH7.0～8.57.0～8.5、L222　Table2　CompositionofthesyntheticwastewaterⅠⅡNaAc(COD)250～350mgL300～350mgLNH4Cl(N)15mgL13mgLKH2PO4(P)10mgL10mgLNaNO3(N)—5～20mgL1mL15L()1mL15L()3　mg·L-1Table3　Compositionofthetraceelementsmg·L-1FeSO4·7H2O3000H3BO320MnSO4·4H2O26NiCl2·6H2O36CoCl2·6H2O50EDTA50CuCl2·2H2O7(NH4)6Mo7O24·4H2O21ZnCl224.1.4　(P)、、、、COD、MLSS、MLVSS、SVI、[20];;,;;(1).2656　　　　　　302　Fig.2　Sludgemorphology=(P-W)(R-W)-(Q-P)×F(1),P,W,R、4℃,Q4℃,F[21];-β-(poly-β-hydroxybutyricacid,PHB)Braunnegg[22];Oehmen[23].2　2.1　,.2.1.1　,,[2(a)];43d,,,0.4mm[2(b)];82d,0.5～1.5mm[2(c)],,20～30mh,94%,1.0439,SVI50mLg,Ca、MgFe11.4、3.20.2mgg.,SS、SVI、MLSS、SRTFM(CODVSS·t)3.55min,SS15mgL,,;30min,SS80mgL20mgL;20min,,,MLSSSVI2548mgL28mLg;10min,SS20mgL;MLSS4000～5000mgL;(SS),SRT20d.3　Fig.3　Coursesofparametersduringbiologicalphosphorusremovalsludgegranulation,,,43d,82d.2.1.2　,.4437d1.(PAOs)26579:SBRAOAAO(Poly-P)PHB,COD161.6mgL31.9mgL,(TPSS)6.2%4.5%,PO3-4-P69.7mgL,PHB(PHBVSS)2%3.6%.SRPR[P(VSS·t)]67.7mg(g·h),COD94.8mg(g·h),1gCOD0.5g,PHB[COD(VSS·t)]36.6mg(g·h);SUPR43.2mg(g·h),TPSS6.5%(,TPSS1.5%～2.3%,TPSS2%～7.3%[24]),PHB25.7mg(g·h).　　:TPinfluent=9.8(mgL)×2(L)×6(d)=117.6mgd(2),6.TPeffluent=3534(mgL)×0.37(Ld)×6.5(%)+2.3(mgL)×2(L)×6(d)=112.6mgd(3),2.3mgLTP.:TPinfluent=TPeffluent(4)4　437d1Fig.4　Cyclechangesofparametersonday437inSBR2.2　448d,,.274d,,1.0～2.0mm,29～51mh,94%,1.0470,Ca、MgFe44.3、270.2mgg.,,0.2～0.7,0.0031.pH,pH,,,.5.80%75%88%,.,,507d87mgL33mgL;NO-3-N5mgL,NO-3-N15d0.7mgL,NO-3-N10、1520mgL,NO-3-N1mgL,NO-2-N,2mgL,1mgL.653d16.DNPAOsPoly-PPHB.SRPR30mg(g·h),COD133.2mg(g·h),1gCOD0.2g,PHB42mg(g·h).DNPAOsPHB,PO3-4-PPoly-P.NO-3-N16.6mgL1mgL,PHBVSS2.2%0.9%.,PO3-4-P36.4mgL11.5mgL,TPSS5.6%6.1%,VSS14%15.4%.SUPR27.9mg(g·h),PHB10.8mg(g·h).,,(,1g1.4g,DNPAOs1g0.36mol,1mol0.13mol;Kuba[25],1mol2658　　　　　　30　　　　　　5　Fig.5　CoursesofnitrogenandphosphoruswiththedenitrifyingphosphateuptakegranularsludgeinSBR6　653d1Fig.6　Cyclechangesofparametersonday653inSBR0.23mol).DNPAOsPHB,.PO34--P0.2mgL,PHBVSS0.6%,TPSS6.3%,VSS15.8%.SUPR10.1mg(g·h).:TPinfluent=9.7(mgL)×2(L)×6(d)=116.4mgd(5)TPeffluent=5264(mgL)×0.25(Ld)×6.3(%)+2.5(mgL)×2(L)×6(d)=112.9mgd(6)　　:TPinfluent=TPeffluent(7)3　(1)SBR,,AO,26599:SBRAOAAO82d.,0.5～1.5mm,94%,1.0439,SVI50mLg.(2).SRPR67.7mg(g·h),SUPR43.2mg(g·h),TPSS6.5%,20～30mh.(3)AAO,.SRPR30mg(g·h),SUPR27.9mg(g·h),TPSS6.3%.,.:[1]　LettingaG,vanVelsenA,HobmaS,etal.Useoftheupflowsl