好氧颗粒污泥同步脱氮除磷的常温启动和低温维持陈冉妮

,＊,,,(,　100124):(aerobicgranularsludge,AGS)(simultaneousnitrogenandphosphorusremoval,SNPR),,2SBR(A、B),254d.,20dAGS,42d(+),COD∶N∶P360∶60∶6,24SNPR,ANH+4-N、TINPO3-4-P98.42%、74.25%94.79%,BNH+4-N、TINPO3-4-P99.45%、75.96%95.60%;,235d、49dSNPR,ANH+4-N、TINPO3-4-P96.33%、79.49%99.68%,BNH+4-N、TINPO3-4-P93.85%、76.44%98.44%.AGS;SNPR;AGS,PHAs,,SNPR.:;;;:X703.1　:A　:0250-3301(2009)10-2995-07:2008-11-25;:2009-04-01:(50508001);(8082007);(KM200510005020);A(2006A10):(1985～),,,,E-mail:[e-mail]＊,E-mail:[e-mail];[e-mail]ndPhosphorusRemovalbyAerobicGranularSludgeatNormalandLowTemperaturesCHENRan-ni,GAOJing-feng,GUOJian-qiu,SUKai,ZHANGQian(CollegeofEnvironmentalandEnergyEngineering,BeijingUniversityofTechnology,Beijing100124,China)Abstract:Thesimultaneousnitrogenandphosphorusremoval(SNPR)fromrealdomesticwastewaterusingaerobicgranularsludge(AGS)hasbeeninvestigated.TheeffectoftemperaturechangesontheSNPRofAGSwasalsostudied.Twolab-scalesequencingbatchreactors(SBRs),namedasAandB,wereoperatedfor254daysinalternatinganaerobic-aerobicmode.TheAGSwascultivatedin20daysusingsettlingtimeasselectionpressure.Fromthe42nddayonwards,additionalcarbon(acetateandpeptoneforA,glucoseforB)wereaddedtomaketheratioofCOD∶N∶Pas360∶60∶6.TheSNPRbyAGSwasachievedfor4months,andtheremovalratiosofammonia,totalinorganicnitrogenandphosphorusofAwerereachedto98.42%,74.25%and94.79%,respectively;theremovalratiosofammonia,totalinorganicnitrogenandphosphorusofBwerereachedto99.45%,75.96%and95.60%,respectively.Then,thetemperaturedecreasedto9-13℃,whichseriouslyaffectedtheefficiencyofSNPR.TheremovalefficienciesofSNPRofreactorAandBwererecoveredafter35daysand49days,respectively,andtheremovalratiosofammonia,totalinorganicnitrogenandphosphorusofAwerereachedto96.33%,79.49%and99.68%,respectively;theremovalratiosofammonia,totalinorganicnitrogenandphosphorusofBwerereachedto93.85%,76.44%and98.44%,respectively.PAOsandDNPAOstogethercompletedthephosphorusremovalandmadephosphorusremovalfasterthannitrogenremoval.NitrificationwastheratelimitingstepforSNPR.ThelowtemperaturemadetheanoxiczoneinAGSdecrease,togetherwiththeabsenceofPHAs,madedenitrificationcouldnotcomplete.Keywords:aerobicgranularsludge(AGS);domesticwastewater;simultaneousnitrogenandphosphorusremoval(SNPR);lowtemperature　　(simultaneousnitrogenandphosphorusremoval,SNPR),Bardenpho、A2O、UCT,,,,SNPR[1].(aerobicgranularsludge,AGS),、、,,AGS、,SBRAGSSNPR,、、,SNPR,SNPR[2].DeKreuk[2]、Meyer[3]、Kishida[4][5]、[6]3010200910　　　　　　ENVIRONMENTALSCIENCEVol.30,No.10Oct.,2009DOI:10.13227/j.hjkx.2009.10.027,AGSSNPR、AGSSNPR,Yilmaz[7]SNPR,.20～30℃,,15℃[8],AGSSNPR,.AGSSNPR.,SBR,AGS,AGS161d(20℃)93d(9～13℃)SNPR、,AGSSNPR.1　1.1　;,COD191.37mgL,PO3-4-P6.14mgL,NH+4-N58.32mgL,pH7.42.SBR,D=18cm,H=55cm,12L,12,2,A、B.,0.16m3h.:(3min),(240min),(470min),(1～5min),(2min),.SNPR,.2007-04-19,254d,242d,,A(10∶1),B,COD360mgL,COD∶N∶P=360∶60∶6.1～161d,20～27℃,162～254d,9～13℃.1.2　COD、MLSS、NO-2-N、NO-3-N、NH+4-N、TINPO3-4-P;WTWMulti340iDO、pH;OLYMPUSBX5152;AGS,0.3、0.6、0.8、1.0、1.52.0mm;FEIQuanta200SEM.2　2.1　AGSA、BAGS.AGS,3:AGS、.、MLSS.(1～10d)5～10min,(11～20d)1min、2min;20dAGS;(21～42d)(43～254d)2～3min.,MLSS2600mgL1620～2050mgL,SVI30min127mLgSVI5min30～40mLg.A、BAGS,.AGS,A、B,2AGS0.3～0.8mm0.6～1.0mm,,AGS,.2AGS,231dAGSSEM1,AGS、,.1　231dAGSFig.1　Morphologyoftheaerobicgranularsludgeatthe231stday　2.2　SBRAGSSNPR,A、B5:Ⅰ:AGS,1～20d;Ⅱ:AGS,21～42d;Ⅲ,SNPR,43～161d;Ⅳ:SNPR,A162～197d,B162～211d;Ⅴ:SNPR,A2996　　　　　　30198～254d,B212～254d.A、B2～4.COD∶N∶P200∶60∶6(mgL),,,2007-05-31(42d),2160mgLCOD,,A,B,COD360mgL,;400mgLCOD;,AGS,、、AGS　　　,A、BSNPR,A、BⅢ4,AGSMLSS1620～2050mgL,AB.2AGSSNPR,ANH+4-N、TINPO3-4-P98.42%、74.25%94.79%;0.83、13.720.30mgL;BNH+4-N、TINPO3-4-P99.45%、75.96%95.60%;0.30、14.930.24mgL,(GB18918-2002).2　ANH+4-N、COD,NH+4-N、TINFig.2　Long-terminfluentNH+4-N,CODandeffluentNH+4-N,TINconcentrationsofreactorA　3　BNH+4-N、COD,NH+4-N、TINFig.3　Long-terminfluentNH+4-N,CODandeffluentNH+4-N,TINconcentrationsofreactorB　　　160d(200710),,20～25℃17℃,2,PO3-4-P99.27%299710:4　A、BPO3-4-PFig.4　Long-terminfluentandeffluentPO3-4-PconcentrationsofreactorAandB　97.31%,0mgL;,NH+4-N28.64mgL34.25mgL,TIN33.94mgL41.99mgL,.,A198d(2007-11-02),NH+4-N3.25mgL,TIN11.66mgL;B212d(2007-11-16),NH+4-N4.72mgL,TIN7.85mgL,2.225～254d(200712),9～13℃,A、B,,ANH+4-N、TINPO3-4-P96.33%、79.49%99.68%;2.50、13.810.02mgL;BNH+4-N、TINPO3-4-P93.85%、76.44%98.44%;4.12、16.060.09mgL.2.2.3　2.3.1　SNPRA217d(2007-11-21)[5(a)],COD,,TIN,,0.0983mgmin,4h;,COD,NH+4-NTIN,;0.2243mgmin,2h;3h,NH+4-NTIN,COD　　　　,NH+4-NNO-2-N、NO-3-N,COD75.00%,54.18mgL;NH+4-N100%;TIN71.77%,10.86mgL;PO3-4-P100%.2.3.2　SNPRB203d(2007-11-07)[5(b)],,COD28.95%,1h,NH+4-N,0.0865mgmin,,PO3-4-P25.71mgL.1h,COD55.26%,NH+4-NTIN,;,0.1856mgmin.2h,COD,COD;NH+4-NTIN;,6h,0.0612mgmin.,NH+4-NTIN,46.55%,27.46mgL;TIN39.96%,31.93mgL,.NH+4-N,,,,NH+4-NTIN,PO3-4-P,100%.3　SNPR、,,[1].1999,Nam[9]2998　　　　　　30　　　　5　A、BNH+4-N、TIN、PO3-4-PCODFig.5　TypicalprofilesofNH+4-N,TIN,PO3-4-PandCODconcentrationduringacycleofreactorAandB　,A2OSNPR,NH+4-NPO3-4-P88%68%.,SNPR,1999,Giuseppe[10](MBSBBR)SNPR,,,.SBR