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-,*,(, 200092):2(SBRs)-(0.15~0.45mg·L-1),.,(1.51)(SBR1),(SBR2),(SNDPR),,.SBR2,SBR1,(PHV),,,SBR1(68%95%)SBR2(51%92%),SNDPR、.:;-;;;:X703 :A :0250-3301(2007)08-1681-06:2006-12-14;:2007-01-21:(20060247006);“”(05SG26):(1976~),,,,,E-mail:lihongjing980824@yahoo.com,lihongjing2371@163.com*,E-mail:yg2chen@yahoo.comAdditionofPropionicAcidonSimultaneousBiologicalPhosphorusandNitrogenRemovalinAnaerobic-LowDissolvedOxygenSystemLIHong-jing,CHENYin-guang,GUGuo-wei(StateKeyLaboratoryofPollutionControlandResourceReuse,SchoolofEnvironmentalScienceandEngineering,TongjiUniversity,Shanghai200092,China)Abstract:Twolab-scalesequencingbatchreactors(SBRs)wereoperatedunderconditionsofanaerobic-lowdissolvedoxygen(DO)(0.15~0.45mg·L-1),andtheinfluencesofadditionofpropionicacidonsimultaneousbiologicalnitrogenandphosphorusremovalsystemwereinvestigated.Theresultsshowedthatthesimultaneousnitrification,denitrificationandphosphorusremoval(SNDPR)occurredinbothSBR1(aceticandpropionicacidasmixedcarbonsourcewiththecarbonmolarratioof1.51)andSBR2(aceticacidassolecarbonsource),andammoniawascompletelyoxidizedduringtheaerobicperiodwithoutsubstantivenitriteaccumulation.ComparedwithSBR2,SBR1showedlessanaerobicphosphorusreleaseandmorepolyhydroxyvalerate(PHV)synthesis,buttheaerobicendphosphorusandnitrateconcentrationswerelower.ThetotalnitrogenandphosphorusremovalefficiencieswerehigherinSBR1(68%and95%,respectively)thaninSBR2(51%and92%,respectively)suggestingthattheadditionofpropionicacidtoSNDPRsystemwouldbehelpful.Keywords:sequencingbatchreactor(SBR);anaerobic-lowdissolvedoxygen;simultaneousnitrification,denitrificationandphosphorusremoval(SNDPR);propionicacid;aceticacid .,[1][2].,[3];-,(2mg·L-1),[4].,Zeng[5]-、,(SNDPR).Meyer[5],SNDPRNO-3-N[6];Lemaire[7]SNDPR,NO-3-N.,SNDPR.,,.Chen[8]-(6mg·L-1)(,),(0.1612.061).SNDPR,28820078 ENVIRONMENTALSCIENCEVol.28,No.8Aug.,2007DOI:10.13227/j.hjkx.2007.08.038.-SNDPR,,.1 1.1 ,-(SBR),SBR3.5L.3,8h,2h,3h,1h,10min,110min.7min,1.75L;,(DO)0.15~0.45mg·L-1.175mL,20d.,1.75L.2SBR(21±1)℃,(MLSS)3500mg·L-1,(MLVSS)2200mg·L-1.3,.1.2 1(SBR1),L0.102mL0.127mL,1.51;2(SBR2),L0.282mL.1.75L100mLA1.65LB,LA:1gMgSO4·7H2O;0.45gCaCl2·H2O;2.34gNH4Cl;0.5g6mL;LB:29mgKH2PO433mgK2HPO4.L:1.5gFeCl3·6H2O;0.15gH3BO3;0.03gCuSO4·5H2O;0.18gKI;0.12gMnCl2·4H2O;0.06gNa2MoO4·2H2O;0.12gZnSO4·7H2O;0.15gCoCl2·6H2O10g(EDTA).2SBRpH2molLNaOH8.0,COD300mg·L-1,NH+4-N35mg·L-1,PO3-4-P12mg·L-1.1.3 [9].[10](HP5980II).(PHAs)[11](Agilent4890),(PHB)(PHV)PHAs[8].pH、MLSS、MLVSS、COD、(PO3-4-P)、(NH+4-N)、(NO-3-N)、(NO-2-N)、(TN)APHA[12].NOx-N(1)[13].RNOx-Prod[mg(L·h)-1]=NOxc1-NOxc0t(1),NOxc1NO-3-NNO-2-N,mg·L-1;NOxc0NO-3-NNO-2-N,mg·L-1;t,h.2 2.1 SBR1 SBR11、、、、、PHBPHV1.1:①(),PO3-4-P,13%NH+4-N,NO-2-N,,ATP,(VFA),PHBPHV.35min,46.50mg·L-1,2h,54.32mg·L-1,,C,7.66mmol·L-1,PHVPHB;②(),NH+4-N,NO-3-N,NO-2-N0.45mg·L-1.,PO3-4-P,54.02mg·L-1.(),(PHBPHV)、,PHBPHV,.SBR1SBR21pH(2),SBR1pH7.54,pH7.35;1h,CO2,pH,7.92,,7.36.2.2 SBR23SBR21、、1682 28 1 SBR1、、、、、PHBPHV1Fig.1 Variationsofnitrogen,phosphorus,acetic,propionic,glycogen,PHBandPHVwithanaerobicandaerobictimeinSBR1duringonecycle 2 SBR1SBR21pHFig.2 VariationofpHinSBR1andSBR2duringonecycle 、、PHBPHV.,①(),PO3-4-P,16%NH+4-N,NO-2-N,,PHAs(PHB+PHV).40min,57.20mg·L-1,2h,72.43mg·L-1,,C,7.82mmol·L-1,PHBPHV;②(),NH+4-N,NO-3-N,NO-2-N1.04mg·L-1.,PO3-4-P,71.98mg·L-1.(),(PHBPHV)、,PHBPHV,.2,SBR2pH7.56,7.36;1h,pH7.90,SBR1,7.40.3 3.1 SBR1SBR2、1,SBR1SBR2NH+4-N100%,.SBR1NO-3-NNO-2-N2.360.15mg·L-1,NO-3-NNO-2-N,13%NH+4-N.SBR2NO-3-NNO-2-N2.930.3mg·L-1,NO-3-NNO-2-N,16%NH+4-N.,,NH+4NO-3NO-2N2.SBR2NO-3-NNO-2-NSBR1,NH+4NO-3NO-2N2,,SBR2NH+4-NSBR1.,(),2SBRPHAs,.1,SBR1NO-2-N0.24mg·L-1,NO-3-N5.48mg·L-1,NO-3-N1.91mg·(L·h)-1,TN68%.SBR2NO-2-N(0.33mg·L-1),NO-3-N8.37mg·L-1,NO-3-N16838:-3 SBR2、、、、PHBPHV1Fig.3 Variationsofnitrogen,phosphorus,acetic,glycogen,PHBandPHVwithanaerobicandaerobictimeinSBR2duringonecycle 2.9mg·(L·h)-1,TN51%.,SBR1NH+4-NNO-3-N,NO-3-N17.63mg·L-1,NO-3-N5.48mg·L-1;SBR2NH+4-NNO-3-N,NO-3-N17.65mg·L-1,NO-3-N8.37mg·L-1.,NO-3-N2TN.SBR1,SBR2NO-3-N,NO-3-N,,SBR2SBR1.1 SBR1SBR2、Table1 Comparisonofnitrification,denitrificationandnitrogenremovalinSBR1andSBR2SBR1SBR2NH+4-Nmg·L-117.6317.65NO-3-Nmg·L-12.362.93NO-2-Nmg·L-10.150.3NH+4-Nmg·L-100NO-2-Nmg·L-10.240.33NO-3-Nmg·L-15.488.37NH+4-N%100100TN%68513.2 SBR1SBR2COD、2SBRCOD、2.SBR1COD35mg·L-1,COD90%;SBR2COD45mg·L-1,COD88%,SBR1.SBR1,SBR2,,.2,SBR1、,,0.3mg·L-1,95%.SBR2SBR1,,0.45mg·L-1,92%,SBR1.2 SBR1SBR2COD、Table2 ComparisonofCODremoval,phosphorusrelease,uptakeandremovalinSBR1andSBR2SBR1SBR2CODmg·L-1366367CODmg·L-13545COD%9088PO3-4-Pmg·L-16.256.30mg·L-154.3272.43mg·L-154.0271.98mg·L-10.30.45(PO3-4-P)%95923.3 、、,SBR1SBR2DO0.15~0.45mg·L-1,、[5].SBR1TN、TP,,NO-3-N,SBR2.Zeng[5],NH+4-N22mg·L-1,SBRNO-3-NNO-2-N.Meyer[6],,NH+4-N13.72mg·L-1,NO-3-N4.2mg·L-1.Lemaire[7],1684 28,NH+4-N12.5mg·L-1,5,2NO-3-N,3,NO-3-N,3mg·L-1.,.Chen[8],,,,,.,.,,NO-3-N.SBR1NH+4-N17.63mg·L-1,NO-3-N5.48mg·L-1;SBR2NH+4-N17.65mg·L-1,NO-3-N8.37mg·L-1,SBR1NO-3-N.SBR1SBR295%92%,.,,,2SBR[8].2SBR,,PHAs.,,.,、3,.SBR2,,,NO-3-N.13,SBR1PHVSBR2,PHV[8].SBR1PHAsPHVNO-3-N.,(),,
本文标题:丙酸的加入对厌氧低氧同时生物除磷脱氮系统的影响李洪静
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