搜索
UnFiedSBR,＊,,(, 100124):UniFedSBRCN、CP,.,2h3h、4h,(CP=30.18),59.93%88.45%,1mgL.-,CN2.57,TIN,49.54%60.75%.-,N、P,,2,,CN、CP2.57、30.18,N、P,.:UniFedSBR;;;:X703.1 :A :0250-3301(2009)10-2963-05:2008-11-25;:2009-01-12:“”(2006BAC19B03);(PXM2008-014204-050843);(50808004):(1982～),,,,E-mails:txg@emails.bjut.edu.cn＊,E-mail:wsy@bjut.edu.cnOptimizationEffectofNitrogenandPhosphorusRemovalinUniFedSBRProcessforDomesticWastewaterTANGXu-guang,WANGShu-ying,GUSheng-bo,PENGYong-zhen(KeyLaboratoryofBeijingforWaterQualityScienceandWaterEnvironmentRecoveryEngineering,BeijingUniversityofTechnology,Beijing100124,China)Abstract:AppropriatechangeofthetraditionaloperationmodeswasinvestigatedinaUniFedSBRlab-scaleapparatustreatingactualdomesticwastewaterwithlowCNandCP.Resultsshowedthatwhenthefeeddecanttimewasextendedfrom2hto3hand4h,thephosphorousremovalefficiencyincreasedfrom59.93%to88.45%withoutanyexternalcarbonsource.Inthemodeofanoxic-aerobiccondition,TINoftheeffluentreducedobviously,theremovalefficiencyincreasedfrom49.54%to60.75%forutilizinglimitedsubstrateininfluentswithlowCN=2.57,adequately.Inthemodeofalternationofanoxic-aerobiccondition,thenitrogenandphosphorousremovalefficiencyincreasedclearly.Thecarbonsourceintheinfluentcanbeusedadequatelyanditoccurreddenitrifyingdephosphatationinanoxicsegment2.ThismodewasoptimalforthetreatmentofactualdomesticwastewaterwithlowCNandCP.Keywords:UniFedSBRprocess;nitrogenandphosphorusremoval;domesticwastewater;optimization 、,、.(COD),COD.,,,(、).UniFedSBR[1],---(),,,,;,,(PAO)(NOx-),(EPBR),,,β-(PHB),[2～5].,,,CN、CP,UniFedSBR,3010200910 ENVIRONMENTALSCIENCEVol.30,No.10Oct.,2009DOI:10.13227/j.hjkx.2009.10.022[6].3UniFedSBR.①,,2h3h、4h;②---()----(),,-;③-,.1 1.1 UniFedSBR,1.SBR,900mm,,210mm,40L.,,,.“”,,[7].,,,,.,、、.;25℃,(25±2)℃.,,0.2m3h.Multi340ipH、DOORPpH、DOORP.1.2 ,15L,(MLSS)3500mgL,MLVSSMLSS82.8%.,,,CN、CP2.57、30.18,1.[8],(4、5)1.;2.;3.;4.;5.PC;6.;7～9.DO、ORP、pH;10.;11.;12.;13.1 UniFedSBRFig.1 SchematicdiagramofpilottestofUniFedSBRsystem .1 kg·m-3Table1 Constitutesofdomesticwastewaterkg·m-3COD110.1～183.7158.465B-3CODPO3-4-P4.62～6.515.25、NH+4-N51.98～71.8561.55、pH7.4～7.57.45Multi340i2 2.1 ,:、、.,,,,.,.UniFedSBR,,,,.2.2,,59.93%88.45%,4h,1mgL,.332964 30.,,,1.24、3.333.97mgL,.(TOC),,TOC45.37、51.1857.71mgL.,,,,,,PHA,PHA,,,30.013、0.0330.043mg(L·min),,3.3,,59.93%、72.84%88.45%.2 Table2 ParametersofexperimentaloperationCODmg·L-1hL·min-1%%h1208.920.1359.93402.52198.630.08972.84402.53171.840.06788.45402.52 Fig.2 Effectsofphosphorusremovalatdifferentfeedtime 3 Fig.3 ProfileofPatdifferentfeedtime 2.2 -UniFedSBR“---()”,,,,,[9].“----()”,,AO,,,.4 -Fig.4 Effectsofnitrogenremovalatanoxic-aerobiccondition4,,TIN,30.09mgL22.89mgL,49.54%60.75%.,,,,,.,,.5,,,,27mgL,;,0～60min,30min296510:UnFiedSBR,TIN3.63mgL,30～60min,TIN0.25mgL,,COD210.030.86mgL,30min,,,,,,TIN.,,TIN,COD,.5 TINFig.5 ProfileofTINatanoxiccondition 2.3 -“----()”“------()”,-,、,AOAO,.6 -Fig.6 Effectsofnitrogenremovalatalternationofanoxic-aerobiccondition67,TINP,,60.75%55.07%70.31%72.27%.7 -Fig.7 Effectsofphosphorusremovalatalternationofanoxic-aerobiccondition (8、9),-,,,,,TIN8.27mgL,0,;,,TIN., 8 -Fig.8 ProfileofNH+4-N,NO-2-N,NO-3-N,PO3-4-Patanoxic-aerobiccondition 9 -Fig.9 ProfileofNH+4-N,NO-2-N,NO-3-N,PO3-4-Patalternationofanoxic-aerobiccondition2966 30,,.-,16.99mgL,2,,3.98mgL,60.75%70.31%;10.22mgL,,1,PAO,0.028mg(L·min),1.68mgL.2,,0.4mgL,,0.0044mg(L·min),,12.12%,2,,PAOPHA,PAO,,.2,COD4.16mgL,2.91mgL,1gCOD2.86mg[10],2.91mgLCOD2.91×2.86=8.32mg,COD,,,.-,.3 (1),,,PHA,PHA,,,0.013、0.0330.043mg(L·min),3.3,,59.93%、72.84%88.45%.(2),“-”,TIN,30.09mgL22.89mgL,49.54%60.75%.,,TIN,COD,.(3)“-”“-”,TINP,60.75%、55.07%70.31%、72.27%,,,,.:[1] ,.UniFedSBR[J].,2006,22(12):14-16.[2] KellerJ,SubramaniamK,GüssweinJ,etal.Nutrientremovalfromindustrialwastewaterusingsingletanksequencingbatchreactors[J].WaterSciTechnol,1997,35(6):137-144.[3] KellerJ,WattsS,Battye-SmithW,etal.Full-scaledemonstrationofbiologicalnutrientremovalinasingletankSBRprocess[J].WaterSciTechnol,2001,43(3):355-360.[4] KellerJ,YuanZ.Combinedhydraulicandbiologicalmodelingandfull-scalevalidationofSBRprocess[J].WatSciTech,2002,45(6):219-228.[5] ,.———、、[M].:,2004.[6] PulgS,VivesMT.WastewaternitrogenremovalinSBRs,applyingastep-feedstrategy:fromlab-scaletopilot-plantoperation[J].WatSciTech,2004,50(10):89-96.[7] ,,,.UniFedSBR[J].,2007,23(3):14-17.[8] .[M].().:,2002.[9] ,.SBR[J].,2003,19(3):33-36.[10] HenzeM.Capabilitiesofbiologicalnitrogenremovalprocessesfromwastewater[J].WaterScienceandTechnology,1991,23:669-679.296710:UnFiedSBR